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DTSTART:20240101T000000
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BEGIN:VEVENT
DTSTART;TZID=UTC:20260310T133000
DTEND;TZID=UTC:20260310T141500
DTSTAMP:20260514T215040
CREATED:20260309T085828Z
LAST-MODIFIED:20260309T085828Z
UID:8529-1773149400-1773152100@cassa.site
SUMMARY:Journal Talk 17: Bonaldi et al. (2026)
DESCRIPTION:SKA-LOW SIMULATIONS FOR A COSMIC DAWN/EPOCH OF REIONISATION DEEP FIELD. \nLink: https://arxiv.org/html/2506.09533v2 \nPresenter: Muhammad Jobair Hasan (BSc and MSc in Physics from Shahjalal University of Science & Technology) \n— \nBoth in person and online. \nTo get notifications and the Google Meet link\, subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-17/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260306T100000
DTEND;TZID=UTC:20260307T210000
DTSTAMP:20260514T215040
CREATED:20260211T115849Z
LAST-MODIFIED:20260307T094021Z
UID:8048-1772791200-1772917200@cassa.site
SUMMARY:Durbin Training Camp 2
DESCRIPTION:In alignment with the International Astronomical Union (IAU) global theme\, Women and Girls in Astronomy\, we are excited to announce Durbin Training Camp 2. This event will be hosted at CASSA\, Independent University\, Bangladesh\, from 6–7 March. \nDurbin facilitates a series of intensive workshops and training camps designed to identify and recruit dedicated new volunteers through an exclusive fast-track process. This journey began in January 2025 with an inaugural workshop led by Dr. Lamiya Mowla at the Asian University for Women (AUW)\, Chattogram\, followed by a second session hosted at CASSA in January 2026. Complementing these are the Durbin Training Camps; the first was organized by Dr. Lamiya Mowla along the banks of the Dhaleshwari River in Keraniganj\, while the upcoming second Training Camp is set to take place at CASSA. \nWhile Durbin recruitment remains open year-round via the standard procedures outlined in the Durbin Manual\, these sessions offer a high-intensity entry point for aspiring members. Participants who excelled in the second workshop have already joined the ranks as Volunteer Applicants\, and the same pathway will be available to those attending the upcoming March camp. If you are eager to contribute to our cosmic mission and accelerate your involvement\, we encourage you to review the application details below and prepare to join our growing community of explorers. \nPlease note that mastery of the Durbin Workshop 2 materials is a prerequisite for this Training Camp; we expect all applicants to be familiar with those core concepts before applying. \nProgram\n  \n\n\nDay 1: Mar 6 (in person at CASSA)\nDay 2: Mar 7 (in person at CASSA)\n\n\n10 am: Observing the Night Sky\n02:00 pm: Hands-on solar observation\n\n\n11:30 am: Telescopes and Detectors\n07:00 pm: Planetary and Deep Space Observation\n\n\n03 pm: Citizen Science with Unistellar\n \n\n\n\n* The observations have to be done by each group separately. The participants will be divided into 6 groups. \nResources: (https://astro.unl.edu/naap/)\nTopics: \n1. Basic Coordinate and Seasons \n2. The Rotating Sky \n3. Cosmic Distance Ladder  \nword version: naap_distance_sg_08 \n  \nAssessment Pretest: Must be completed together as a group. \nAssessment Posttest: Must be completed and submitted individually. \n  \n  \n  \n                                              Instructor\n\n\n                                                              Dr. Syed Ashraf Uddin                                                                 Associate Professor                                                         Department of Physical Sciences                                                       Independent University\, Bangladesh\n\n \n \nParticipation\n\nSeats: 30. We have 60% seats available for women participants only. Financial aid available for women participants outside Dhaka.\nApplication form: https://forms.gle/xpLHCkN5HBmVoV5F9\nDeadline: February 24\, 2026 (11:59:59 PM)\nDecision Announcement: February 28\, 2026\n\nParticipant List\n\n\n\nAdiba Habiba\nDhaka\nUnited International University\n\n\nAdita Ferdous\nDhaka\nBrac University\n\n\nAli Newaj\nChattogram\nUniversity of Chittagong\n\n\nAshratul Zannati Purnota\nDhaka\nIndependent University\, Bangladesh\n\n\nAsmaul Husna Juhana\nDhaka\nIndependent University\, Bangladesh\n\n\nAvranil Mitra\nDhaka\nSher-e-Bangla Agricultural University\n\n\nFabia Farzana Tisha\nDhaka\nAmerican International University Bangladesh\n\n\nFarhana Ferdous\nDhaka\nBRAC University\n\n\nFariba Nehreen Binti\nChattogram\nUniversity of Chittagong\n\n\nFarzana Yasmin\nDhaka\nDaffodil International University\n\n\nHredeta Nag\nDhaka\nIndependent University\, Bangladesh\n\n\nIman Sheikh\nDhaka\nIndependent University\, Bangladesh\n\n\nKashfia Rahman\nDhaka\nIndependent University Bangladesh\n\n\nKazi Nusrat Tasneem\nSylhet\nShahjalal University of Science and Technology\n\n\nLaboni Akter Setu\nBarishal\nBarishal University\n\n\nM.O.B. JIHAD\nDhaka\nAmerican International University Bangladesh\n\n\nMahdi Hasan Mahi\nDhaka\nBCIC College\n\n\nMahin Istiaz Jahan Tithy\nDhaka\nJagannath University\n\n\nMahjan Sabibia Aban\nDhaka\nUnited International University\n\n\nMasuk Ridwan Saumo\nDhaka\nBangladesh University of Engineering and Technology\n\n\nMD MUNEM SHAHRIAR\nGazipur\nNational University (On-Campus)\n\n\nMizanur Rahman Howlader\nDinajpur\nHajee Mohammad Danesh Science and Technology University\n\n\nMost.Maftahul zannat\nDhaka\nAmerican International University Bangladesh\n\n\nMozammal Hossain Masum\nDhaka\nIndependent University\, Bangladesh\n\n\nMST. MARIA KHATUN\nPabna\nGovt. Edward College\n\n\nMst. Nusrat Jahan Tabassum\nNoakhali\nNoakhali Science and Technology University\n\n\nMubashira Rahman Ibnat\nDhaka\nSummerfield International School\n\n\nNafia Papry\nDhaka\nBRAC University\n\n\nNafisa Tabbassum\nDhaka\nUnited international University\n\n\nRaiyan Kawsar\nDhaka\nUniversity of Dhaka\n\n\nRownok Shahariar\nPabna\nGovt. Edward College\n\n\nSADIA AFRIN\nJashore\nJashore University of Science and Technology\n\n\nShanjida Nahar\nGopalganj\nGopalganj Science and Technology University\n\n\nSujana Tanjin\nDhaka\nDaffodil International University\n\n\nTanmoy Das\nDhaka\nAmerican International University Bangladesh\n\n\nTanzila Tabassum\nDhaka\nIndependent University\, Bangladesh\n\n\nTasmia Tabasum Ami\nJashore\nJashore University of Science and Technology\n\n\nTasnin Ara\nPabna\nGovt. Edward College\n\n\nYead Muhammad Ivan\nDhaka\nBRAC University
URL:https://cassa.site/event/durbin-training-camp-2/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Training Camp
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/12/m101.webp
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260303T133000
DTEND;TZID=UTC:20260303T141000
DTSTAMP:20260514T215040
CREATED:20260218T103354Z
LAST-MODIFIED:20260225T100755Z
UID:8257-1772544600-1772547000@cassa.site
SUMMARY:Journal Talk 16: Chen et al. (2023)
DESCRIPTION:Detecting the H I power spectrum in the post-reionization Universe with SKA-Low. \nLink: https://doi.org/10.1093/mnras/stad2102 \nPresenter: Jannatul Feardous Nishi (graduated from the Department of Electrical & Electrical Engineering\, RUET) \n— \nBoth in person and online. \nTo get notifications and the Google Meet link\, subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-16/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260221T190000
DTEND;TZID=UTC:20260221T200000
DTSTAMP:20260514T215040
CREATED:20260215T160535Z
LAST-MODIFIED:20260216T175541Z
UID:8107-1771700400-1771704000@cassa.site
SUMMARY:Durbin Talk 6
DESCRIPTION:Black Holes Across the Universe: One Physics\, Many Scales\nIn alignment with the global theme Women and Girls in Astronomy led by the International Astronomical Union (IAU)\, we are pleased to present Durbin Talk 6\, featuring cutting-edge research and reflections on inclusion in science. \nHosted at CASSA\, Independent University\, Bangladesh\, this session continues the Durbin mission of connecting Bangladeshi students and young researchers with leading scientists from around the world. \nThe Durbin Talk series is part of the CASSA Durbin program\, designed to connect students\, early-career researchers\, and science enthusiasts with leading scientists working at the frontiers of knowledge. Each talk brings global research perspectives to a Bangladeshi audience\, creating space for scientific dialogue\, mentorship\, and inspiration. \nDurbin Talk 6 continues this vision by exploring one of the most extreme yet fundamentally unifying phenomena in astrophysics: black holes. \n“Black holes may seem mysterious and extreme\, yet they follow surprisingly universal rules. In this talk\, I will explore how the same physical processes power both stellar-mass black holes in our Galaxy and the supermassive black holes at the centers of distant galaxies. By combining global optical monitoring with ultra-high-resolution radio observations\, my work tracks how black holes feed\, flare\, and launch powerful jets of energy. Studying these systems across different wavelengths allows us to uncover patterns that connect objects separated by billions of times in size\, revealing a unifying picture of how black holes grow and influence their environments.\nAlongside the science\, I will also reflect on the experience of women in astronomy and the broader landscape of gender differences in scientific achievement. Through these reflections\, I hope to highlight how research is shaped not by talent alone\, but also by access\, representation\, mentorship\, and opportunity​; and why building a more inclusive scientific community is essential for discovery.” \nSpeaker (Online): Payaswini Saikia\, PhD\nAssociate Research Scientist\, Department of Astronomy and Physics\, Yale UniversityPhD from Radboud UniversityFormer Postdoctoral Researcher at New York University Abu DhabiResearch focus: Accretion and ejection processes in compact objects \nAudience: In-person at CASSA\, IUB.
URL:https://cassa.site/event/durbin-talk-6/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Durbin Talks
ATTACH;FMTTYPE=image/png:https://cassa.site/wp-content/uploads/2026/02/Feb-15-2026-10_32_48-PM.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260217T120000
DTEND;TZID=UTC:20260217T124000
DTSTAMP:20260514T215040
CREATED:20260205T061139Z
LAST-MODIFIED:20260217T041124Z
UID:7924-1771329600-1771332000@cassa.site
SUMMARY:Journal Talk 15: Clews et al. (2025)
DESCRIPTION:Radio-loud AGN morphology and host-galaxy properties in the LOFAR Two-metre Sky Survey Data Release 2. \nLink: https://doi.org/10.1093/mnras/staf966 \nPresenter: Deba Priyo Guha (graduated from the Department of Electrical & Computer Engineering\, RUET) \n— \nBoth in person and online. \nTo get notifications and the Google Meet link\, subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-15/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260203T120000
DTEND;TZID=UTC:20260203T124000
DTSTAMP:20260514T215040
CREATED:20260201T045435Z
LAST-MODIFIED:20260201T110918Z
UID:7872-1770120000-1770122400@cassa.site
SUMMARY:Journal Talk 14: Hardcastle et al. (2023)
DESCRIPTION:The LOFAR Two-Metre Sky Survey. VI. Optical identifications for the second data release. \nLink: https://doi.org/10.1051/0004-6361/202347333 \nPresenter: M.O. B. Jihad (CSE\, AIUB) \n— \nBoth in person and online. \nTo get notifications and the Google Meet link\, subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-14/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260127T143000
DTEND;TZID=UTC:20260127T160000
DTSTAMP:20260514T215040
CREATED:20251206T080633Z
LAST-MODIFIED:20260126T111046Z
UID:6954-1769524200-1769529600@cassa.site
SUMMARY:CASSA Colloquium 13: Modelling the Last Major Merger that Shaped the Milky Way
DESCRIPTION:Speaker (in person): Istiak Akib\, PhD candidate\, Laboratoire d’Instrumentation et de Recherche en Astrophysique (LIRA)\, Observatoire de Paris\, Paris Sciences et Lettres University (PSL)\, France. \nAbstract: The last major merger of the Milky Way (MW) occurred 9-10 Gyr ago with an incoming galaxy known as the Gaia-Sausage Enceladus (GSE). We present the first hydrodynamical modelling of this collision using GIZMO. Our simulation reproduces the observed kinematic signatures of GSE. Furthermore\, the merger model successfully recovers key structural and dynamical properties of the present-day MW\, such as\, the bulge\, disk\, bar and its rotation\, four spiral arms\, surface mass density\, rotation curve\, gas fraction\, and star formation history. The simulations also show evidence for the Galactic warp and flare.
URL:https://cassa.site/event/colloquium-13/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2024/12/akib-1.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260127T120000
DTEND;TZID=UTC:20260127T124000
DTSTAMP:20260514T215040
CREATED:20260126T095158Z
LAST-MODIFIED:20260126T095158Z
UID:7793-1769515200-1769517600@cassa.site
SUMMARY:Journal Talk 13: Li et al. 2026
DESCRIPTION:Large Language Models for Limited Noisy Data: A Gravitational Wave Identification Study \nLink: doi:10.48550/arXiv.2512.04031 \nPresenter: Siddhartho Sen\, DIU. \n— \nBoth in person and online. \nTo get notifications and the Google Meet link\, subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-13/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260115T100000
DTEND;TZID=UTC:20260117T180000
DTSTAMP:20260514T215040
CREATED:20260102T114829Z
LAST-MODIFIED:20260206T080713Z
UID:7300-1768471200-1768672800@cassa.site
SUMMARY:Durbin Workshop 2
DESCRIPTION:Durbin Workshop 2 will be a 3-day intensive workshop focusing on observational techniques\, telescope optics\, and astronomical image processing for astrophotography. \nTopics covered\n\nDay 1: Introduction to Durbin 2.0\, Observation Basics\, Telescope Optics\, and Intro to Image Processing.\nDay 2: Science Writing (with Dr. Asad)\, Remote Imaging via iTelescope (with Shahal)\, and Deep Sky Image Processing.\nDay 3: Advanced Image Processing workflows\, Final Presentations\, and Evaluation.\n\nImportant Notes\n\nAttendance: Participants are expected to attend all three days to receive a certificate.\nEquipment: You must bring a laptop to participate in the hands-on software sessions.\nLunch: Lunch breaks are 1:00 – 2:30 PM (self-arranged\, but an allowance of BDT 200 will be provided).\n\nParticipation\nThe current Durbin Volunteers are all expected to participate. Aside from the Durbin Volunteers\, we have 10 seats available for women participants only. Fill the form to secure your spot. \nDeadline: January 11\, 2026 (11:59:59 PM) \nSelected Participants\n\n\n\n\n\n\n\nName\nInstitute\nCity\n\n\nM.O.B. Jihad\nAIUB\nDhaka\n\n\nTanmoy Das\nAIUB\nDhaka\n\n\nAdita Ferdous\nBracU\nDhaka\n\n\nFarhana Ferdous\nBracU\nDhaka\n\n\nFariba Nehreen Binti\nCU\nChattogram\n\n\nMd. Hasan Mahmud Sajib\nCU\nChattogram\n\n\nRownok Shahariar\nEdward College\nPabna\n\n\nAfrin Rahman Purba\nIUB\nDhaka\n\n\nAshratul Zannati Purnota\nIUB\nDhaka\n\n\nAsmaul Husna Juhana\nIUB\nDhaka\n\n\nKashfia Rahman\nIUB\nDhaka\n\n\nMd Iman shak\nIUB\nDhaka\n\n\nMD Mahbub Uz Zaman\nIUB\nDhaka\n\n\nMozammal Hossain Masum\nIUB\nDhaka\n\n\nSornali Akter Tayeba\nIUB\nDhaka\n\n\nTanzila Tabassum\nIUB\nDhaka\n\n\nTonima Tasnim Satu\nIUB\nDhaka\n\n\nMahin Istiaz Jahan Tithy\nJnU\nDhaka\n\n\nZARIN ANAN RIFAH\nSEU\nDhaka\n\n\nMahjan Sabibia Aban\nUIU\nDhaka\n\n\n\nProgram\n\n\n\n\n\n\n\n\n \nJan 15: Thu\nJan 16: Fri\nJan 17: Sat\n\n\n10:00 – 11:30\nIntroduction to Durbin 2.0; group creation\niTelescope image processing (Shahal)\nTelescope optics (Asad)\n\n\n11:30 – 11:45\nTea break\nTea break\nTea break\n\n\n11:45 – 01:00\nMeasuring the sky (Asad)\niTelescope image processing (Shahal)\nHands-on groupwork: image processing and writing\n\n\n01:00 – 02:30\nLunch break\nLunch break\nLunch break\n\n\n02:30 – 04:00\nMeasuring the sky (Asad)\nWriting about astronomical objects (Asad)\nHands-on groupwork: image processing and writing\n\n\n04:00 – 04:15\nTea break\nTea break\n\nPresentation\, evaluation\, and selection of Durbin Volunteers for the year 2026.\n\n\n\n04:15 – 06:00\niTelescope imaging (Shahal)\nHands-on groupwork: image processing and writing\n\n\n\n 
URL:https://cassa.site/event/dw2/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Durbin
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2026/01/m74-1.webp
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260113T130000
DTEND;TZID=UTC:20260113T140000
DTSTAMP:20260514T215040
CREATED:20260106T121507Z
LAST-MODIFIED:20260106T121507Z
UID:7482-1768309200-1768312800@cassa.site
SUMMARY:Journal Talk 12: Hossain et al. (2025)
DESCRIPTION:Detection of Exoplanets with Machine Learning Techniques Through Transit Light-curve Analysis. \nLink: https://doi.org/10.3847/1538-3881/ae1ba3 \nPresenter: Md. Sadman. \n— \nBoth in person and online. \nTo get notifications and the Google Meet link\, subscribe using the Google Form: \nhttps://docs.google.com/forms/d/e/1FAIpQLSdDUg2eNHuB_z8-nfLU09lLaOmXYVwYC1O59e6hZVU_e07sbA/viewform?usp=header
URL:https://cassa.site/event/jtalk-10-2-2/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260106T130000
DTEND;TZID=UTC:20260106T140000
DTSTAMP:20260514T215040
CREATED:20260105T095700Z
LAST-MODIFIED:20260106T121832Z
UID:7440-1767704400-1767708000@cassa.site
SUMMARY:Journal Talk 11: Giacintucci et al. (2024)
DESCRIPTION:Are Radio Minihalos Confined by Cold Fronts in Galaxy Clusters? Minihalos and Large-scale Sloshing in A3444 and MS 1455.0+2232 \nLink: https://doi.org/10.3847/1538-4357/ad12bc \nPresenter: Ashratul Zannati Purnota. \n— \nBoth in person and online. \nTo get notifications and the Google Meet link\, subscribe using the Google Form: \nhttps://docs.google.com/forms/d/e/1FAIpQLSdDUg2eNHuB_z8-nfLU09lLaOmXYVwYC1O59e6hZVU_e07sbA/viewform?usp=header
URL:https://cassa.site/event/jtalk-10-2/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251223T130000
DTEND;TZID=UTC:20251223T133000
DTSTAMP:20260514T215040
CREATED:20251221T162855Z
LAST-MODIFIED:20251223T074113Z
UID:7173-1766494800-1766496600@cassa.site
SUMMARY:Journal Talk 10: Tudorache et al. 2005
DESCRIPTION:A 15 Mpc rotating galaxy filament at redshift z = 0.032 \nLink:  https://doi.org/10.1093/mnras/staf2005 \nPresenter: Radit Raian\, Adamjee Cantonment College . \n— \nBoth in person and online. \nTo get notifications and the Google Meet link\, subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-10/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251218T143000
DTEND;TZID=UTC:20251218T160000
DTSTAMP:20260514T215040
CREATED:20251206T080700Z
LAST-MODIFIED:20251217T081001Z
UID:6952-1766068200-1766073600@cassa.site
SUMMARY:CASSA Colloquium 12: Between Stars and Planets
DESCRIPTION:Title: Between Stars and Planets: Unveiling the Hidden World of Transiting Brown Dwarfs \nSpeaker: Md Redyan Ahmed\, PhD candidate\, Sydney Institute for Astronomy (SIfA)\, University of Sydney\, Australia. \nAbstract: Transiting brown dwarfs occupy the mass range between stars and planets\, placing them in a unique regime where the physics of both worlds begin to overlap. Wide-field surveys have identified more than 1\,000 isolated brown dwarfs in the Solar neighbourhood\, yet only about 50 systems are known to transit their host stars. With the arrival of the TESS mission\, this picture has begun to change: the sample of transiting brown dwarfs is growing steadily\, providing more systems with precisely measured masses and radii and opening new opportunities to study how these objects form and evolve. In this talk\, I will give a short introduction to transiting brown dwarfs\, how they are detected\, and how their known population has been expanding over time. I will then present TOI-2155 b\, a newly characterised transiting brown dwarf lying right at the hydrogen-burning mass limit. With a mass of 81 $M_J$ (Jupiter mass)\, it contributes an important new data point to the growing population of transiting brown dwarfs and helps us probe the structure\, cooling\, and formation pathways of objects near the low-mass star boundary.
URL:https://cassa.site/event/colloquium-12/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/redyan.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251209T130000
DTEND;TZID=UTC:20251209T133000
DTSTAMP:20260514T215040
CREATED:20251202T083049Z
LAST-MODIFIED:20251209T045658Z
UID:6960-1765285200-1765287000@cassa.site
SUMMARY:Journal Talk 9: Shah et al. 2025
DESCRIPTION:Beyond the clouds: advanced data analysis of a Dutch sky quality meter network \nLink:  https://doi.org/10.1093/mnras/staf1200 \nPresenter: Farzana Akter Lima\, Physics\, Govt. Bangla College. \n— \nBoth in person and online. \nTo get notifications and the Google Meet link\, subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-9/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Dhaka:20251204T180000
DTEND;TZID=Asia/Dhaka:20251204T203000
DTSTAMP:20260514T215040
CREATED:20251204T083206Z
LAST-MODIFIED:20251204T084901Z
UID:6969-1764871200-1764880200@cassa.site
SUMMARY:Astronomy Night 12: Spielberg’s E.T. and the Full Moon
DESCRIPTION:On the night of the last full moon of 2025\, join us for a special screening of E.T. the Extra-Terrestrial (1982)\, directed by Steven Spielberg. Before the screening\, an astronomer will offer a short introduction on the film’s enduring significance in the age of exoplanets. In the early 1980s\, astronomers worldwide were searching the Milky Way for planets around other stars\, but no confirmed exoplanet would be discovered until 1992\, a full decade after E.T.. With more than 7\,000 exoplanets known today\, we can now revisit E.T. in the gentle light of the full moon\, with a renewed sense of wonder and context. \nAfter the 15-minute introduction\, the screening will begin at 6:15 PM inside the CASSA Office. At the same time\, just outside the office\, you will also be able to observe the full moon through CASSA’s telescopes\, as well as with the naked eye.
URL:https://cassa.site/event/an12/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Astronomy Night
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/12/cassa-scaled.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251202T130000
DTEND;TZID=UTC:20251202T133000
DTSTAMP:20260514T215040
CREATED:20251127T082500Z
LAST-MODIFIED:20251202T073222Z
UID:6819-1764680400-1764682200@cassa.site
SUMMARY:Journal Talk 8: Lin et al. 2025
DESCRIPTION:MAPPING THE NEAREST ANCIENT SLOSHING COLD FRONT IN THE SKY WITH XMM-Newton \nLink:  https://doi.org/10.33232/001c.145187 \nPresenter: Tasnim Mahfuz Nafis\, Software Engineering\, Dhaka University. \n— \nBoth in person and online. \nTo get notifications and the Google Meet link subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-8/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251201T113000
DTEND;TZID=UTC:20251201T130000
DTSTAMP:20260514T215040
CREATED:20251127T074540Z
LAST-MODIFIED:20251127T081702Z
UID:6803-1764588600-1764594000@cassa.site
SUMMARY:CASSA Colloquium 11: Catching a star: How modern astronomers find exciting phenomena
DESCRIPTION:Speaker (in person at IUB): Tonima Tasnim Ananna\, PhD\, Assistant Professor\, Department of Physics and Astronomy\, Wayne State University\, USA \nTitle: Catching a star: How modern astronomers find exciting phenomena \nAbstract: Modern astrophysics infers extreme phenomena from precise\, theory-driven signatures. In this talk\, we will explore the empirical case for the Big Bang—cosmic expansion\, light-element abundances\, and the cosmic microwave background—and why these lines of evidence make it the most plausible origin of the Universe. We will examine how kilometer-scale laser interferometers identify black hole mergers with LIGO\, and how next-generation detectors may let us peek closer to the Big Bang via gravitational waves. Finally\, we will explore how JWST pushes galaxy surveys into the first few hundred million years after the Big Bang.
URL:https://cassa.site/event/colloquium-11/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/04/ananna.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251128T180000
DTEND;TZID=UTC:20251128T200000
DTSTAMP:20260514T215040
CREATED:20251120T074513Z
LAST-MODIFIED:20251125T105441Z
UID:6579-1764352800-1764360000@cassa.site
SUMMARY:Astronomy Night 11: Live demonstration of Bangladesh's first array radio telescope
DESCRIPTION:From November 17 to 21\, in CASSA’s second workshop\, 30 students from 10 universities in Bangladesh participated in building\, for the first time in the country\, a Transient Array Radio Telescope (TART). The workshop instructor was Dr. Tim Molteno from the University of Otago in New Zealand\, the lead designer of TART. After seven countries in the Southern Hemisphere\, this is the first time a TART has been installed in the Northern Hemisphere. \nAt this Astronomy Night\, live images from the Small TART (START)\, installed beside the CASSA Office on the IUB rooftop\, will be shown at 6 PM\, when the workshop students will share their experience of working with this radio telescope. After 7 PM\, image-taking of nebulae and star clusters in the Dhaka sky will be demonstrated with CASSA’s small optical telescope Ashvin-1. Additionally\, an 80-millimeter refracting telescope equipped with an eyepiece will allow viewers to observe some objects of the solar system. \n \nLIVE Data of START\, IUB: https://tart.elec.ac.nz/viewer/bd-iub \nStudents from 10 universities participated in CASSA Workshop 2 from 17 – 21 Nov 2025.  \nDr. Tim Molteno demonstrating TART imaging during CASSA Workshop 2.  \nStudents are learning to measure distances between pairs of antennas in order to perform an array calibration.
URL:https://cassa.site/event/cw2-closing-an/
LOCATION:Independent University\, Bangladesh\, 16 Aftabuddin Ahmed Road\, Bashundhara RA\, 1229\, Bangladesh
CATEGORIES:Ceremony,Outreach
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/11/tart-bd-iub.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251125T130000
DTEND;TZID=UTC:20251125T140000
DTSTAMP:20260514T215040
CREATED:20251111T074619Z
LAST-MODIFIED:20251124T153932Z
UID:6290-1764075600-1764079200@cassa.site
SUMMARY:Journal Talk 7: Mowla et al. 2022
DESCRIPTION:The Sparkler: Evolved High-redshift Globular Cluster Candidates Captured by JWST \nLink:  https://doi.org/10.3847/2041-8213/ac90ca \nPresenter: Most. Atia Sanjida\, MSc student\, Physics\, University of Dhaka \n— \nBoth in person and online. \nTo get notifications and the Google Meet link subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-7/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251120T180000
DTEND;TZID=UTC:20251120T193000
DTSTAMP:20260514T215040
CREATED:20251120T134604Z
LAST-MODIFIED:20251126T061318Z
UID:6122-1763661600-1763667000@cassa.site
SUMMARY:CASSA Colloquium 10: Probing galaxy evolution using massive early-type galaxies at intermediate redshift
DESCRIPTION:Speaker (online): Pritom Mozumdar\, Postdoctoral Researcher\, Department of Physics and Astronomy\, University of California\, Los Angeles\, USA. \nTitle: Probing galaxy evolution using massive early-type galaxies at intermediate redshift \nAbstract: Over the past 8 billion years (since redshift\, z ~ 1)\, the Universe – and the galaxies within it – have changed dramatically. Cosmological simulations suggest that massive early-type galaxies (ETGs)\, which are large\, old systems mostly made of stars\, have slowly transformed in their internal structure during this time. However\, observational evidence of these transformations at intermediate redshift ( z ~ 0.5) isn’t conclusive and sometimes even seems to disagree with what simulations predict. One major reason is the lack of statistically large sample of ETGs with high-quality data at intermediate redshifts. To fill this gap\, I assembled a sample of around 200 massive ETGs at 0.25 < z < 0.75. With this dataset\, I addressed two big questions – 1) Have the stars in these galaxies become more randomly moving\, that is\, have their motions become less ordered\, over cosmic time? 2) Has the overall distribution of mass\, including both stars and dark matter\, changed as the Universe aged? By comparing these galaxies to similar ones in today’s Universe (z ~ 0)\, I found evidence that both the stellar motions and the mass distributions have evolved – offering new clues about how massive galaxies grew and changed over cosmic history.
URL:https://cassa.site/event/colloquium-10/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/10/mozumdar.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251117T094000
DTEND;TZID=UTC:20251117T111500
DTSTAMP:20260514T215040
CREATED:20251112T025313Z
LAST-MODIFIED:20251112T054632Z
UID:6306-1763372400-1763378100@cassa.site
SUMMARY:Opening Ceremony of CASSA Workshop 2
DESCRIPTION:
URL:https://cassa.site/event/workshop-2-opening/
LOCATION:Lecture Gallery MK9006\, DMK Building\, IUB\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Ceremony
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/11/workshop-2-banner-scaled.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20251117
DTEND;VALUE=DATE:20251122
DTSTAMP:20260514T215040
CREATED:20250626T104548Z
LAST-MODIFIED:20251021T153707Z
UID:5723-1763337600-1763769599@cassa.site
SUMMARY:CASSA Workshop 2: Installing a Radio Telescope to Image the Invisible
DESCRIPTION:
URL:https://cassa.site/event/workshop-2/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Workshop
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/eor.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251113T180000
DTEND;TZID=UTC:20251113T190000
DTSTAMP:20260514T215040
CREATED:20251113T150529Z
LAST-MODIFIED:20251126T061455Z
UID:5906-1763056800-1763060400@cassa.site
SUMMARY:CASSA Colloquium 9: Photometric Redshifts for Next-Generation Sky Surveys
DESCRIPTION:Speaker (online): Biprateep Dey\, PhD\, Postdoctoral Fellow\, Department of Statistical Sciences\, University of Toronto\, Canada. \nTitle: Photometric Redshifts for Next-Generation Sky Surveys \nAbstract: Knowing the distances to galaxies as measured by their cosmological redshift is crucial for studies of cosmology\, galaxy evolution\, and astronomical transients. The next generation of astronomical imaging surveys (like LSST\, Euclid\, and Roman Observatories) will all be critically dependent on estimates of galaxy redshifts from imaging data alone; the resulting measurements are called photometric redshifts or photo-z’s. Traditional photo-z estimation methods only use measures of total light received from a galaxy (colors and magnitudes) as inputs\, thereby\, throwing away the rich pixel-level information present in images. Moreover\, the uncertainty estimates produced by these methods are not statistically well defined and the availability of data to train these methods is scarce. I will present my work on developing new deep learning-based photo-z estimation methods that take images directly as inputs and provide state-of-the-art photo-z prediction accuracy while being interpretable and requiring less training data. I will also talk about a statistical formalism that I developed to produce well-calibrated photo-z uncertainty estimates that are method-agnostic and employ minimal assumptions. Finally\, I will also provide an overview of our recent efforts to obtain spectroscopic samples to train for photo-z algorithms using the Dark Energy Spectroscopic Instrument (DESI).
URL:https://cassa.site/event/colloquium-9/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/10/dey.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250722T120000
DTEND;TZID=UTC:20250722T130000
DTSTAMP:20260514T215040
CREATED:20250715T065525Z
LAST-MODIFIED:20250715T065537Z
UID:5771-1753185600-1753189200@cassa.site
SUMMARY:Journal Talk 6: Brackenhoff et al. 2025
DESCRIPTION:Robust direction-dependent gain-calibration of beam-modelling errors far from the target field \nLink: https://arxiv.org/abs/2504.02483 \nPresenter: Jannatul Feardous Nishi\, postbac from RUET. \nBoth in person and online. \nTo get notifications and the Google Meet link subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-6/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250717T100000
DTEND;TZID=UTC:20250717T113000
DTSTAMP:20260514T215040
CREATED:20250717T065536Z
LAST-MODIFIED:20251126T061432Z
UID:5729-1752746400-1752751800@cassa.site
SUMMARY:CASSA Colloquium 8: Environmental variations of the low-mass IMF
DESCRIPTION:Speaker (online): Tabassum Shahriar Tanvir\, Postdoc Research Associate\, Department of Physics and Astronomy\, Iowa State University\, USA. \nTitle: Environmental variations of the low-mass IMF \nAbstract: The stellar initial mass function is arguably the most important distribution in astrophysics since it is at least partly determining everything from chemical evolution to the strength of stellar feedback during galaxy formation. While the IMF seems to be nearly universal in nearby\, Milky Way-like galaxies\, in recent years tentative evidence has emerged that the IMF varies slightly in the most extreme star-forming environments (e.g.: early-type galaxies). In a series of magnetohydrodynamic simulations including radiative and protostellar outflow feedback\, we study the environmental variation of the initial mass function. The simulations represent a carefully controlled experiment whereby we keep all dimensionless parameters of the flow constant except for feedback-related ones. We show that radiation feedback suppresses the formation of lower-mass objects more effectively as the surface density increases\, while protostellar outflows grow more effective at suppressing the formation of massive stars. The combined effect of these two trends is towards an IMF with a lower characteristic mass and a narrower overall mass range in high surface density environments. We further explore the effects of varying the metallicity\, and thus the dust properties\, of the star-forming gas. Dust matters because it is the crucial component of the gas that couples it to stellar radiation fields. We show that over a range in metallicity from 1% of Solar to 3x Solar\, corresponding to the lowest metallicity dwarf galaxies in the local universe to the most metal-rich early-types\, metallicity variations are much less important than variations in surface density in driving changes in the IMF. We therefore conclude that the higher surface densities and pressure found in early-type galaxies are most likely responsible for their anomalous IMFs\, while metallicity effects are negligible in comparison.
URL:https://cassa.site/event/colloquium-8/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/jpeg:https://cassa.site/wp-content/uploads/2025/06/tanvir-e1762452831598.jpeg
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250715T120000
DTEND;TZID=UTC:20250715T130000
DTSTAMP:20260514T215040
CREATED:20250714T063106Z
LAST-MODIFIED:20250714T072258Z
UID:5758-1752580800-1752584400@cassa.site
SUMMARY:Journal Talk 5: Wilensky et al. 2025
DESCRIPTION:High Dimensional Beam Inference II: Inference of a Perturbed HERA Beam from Simulated Visibility Data \nLink: https://arxiv.org/abs/2506.20712 \nPresenter: Afnan Uzzaman\, IUB EEE \nBoth in person and online. \nTo get notifications and the Google Meet link subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-5/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250708T120000
DTEND;TZID=UTC:20250708T133000
DTSTAMP:20260514T215040
CREATED:20250629T065803Z
LAST-MODIFIED:20250629T065803Z
UID:5732-1751976000-1751981400@cassa.site
SUMMARY:Journal Talk 4: Shajib et al. 2025
DESCRIPTION:dolphin: A fully automated forward modeling pipeline powered by artificial intelligence for galaxy-scale strong lenses \nLink: https://doi.org/10.48550/arXiv.2503.22657 \nPresenter: Nafis Sadik Nihal \nBoth in person and online. \nTo get notifications and the Google Meet link subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-4/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250701T120000
DTEND;TZID=UTC:20250701T133000
DTSTAMP:20260514T215040
CREATED:20250619T094254Z
LAST-MODIFIED:20250619T094352Z
UID:5540-1751371200-1751376600@cassa.site
SUMMARY:Journal Talk 3: Wong et al. 2025
DESCRIPTION:Radio Galaxy Zoo data release 1: 100185 radio source classifications from the FIRST and ATLAS surveys  \nLink: https://doi.org/10.1093/mnras/stae2790 \nPresenter: Md Shahadat Hossain Shahal \nRelated other papers: \n\nRadio galaxy zoo: towards building the first multipurpose foundation model for radio astronomy with self-supervised learning\nIdentification of 4876 Bent-tail Radio Galaxies in the FIRST Survey Using Deep Learning Combined with Visual Inspection\n\nBoth in person and online. \nTo get notifications and the Google Meet link subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-3/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250626T120000
DTEND;TZID=UTC:20250626T140000
DTSTAMP:20260514T215040
CREATED:20250626T095039Z
LAST-MODIFIED:20251126T061415Z
UID:5477-1750939200-1750946400@cassa.site
SUMMARY:CASSA Colloquium 7: Strong Gravitational Lensing as a Probe of Cosmology
DESCRIPTION:Speaker (online): Kenneth C. Wong\, PhD\, Assistant Professor\, Research Center for the Early Universe (RESCEU)\, University of Tokyo\, Japan. \nAbstract: Strong gravitational lensing is sensitive to the total mass distribution along the line of sight\, making it a unique probe of dark matter in galaxies and clusters\, and useful for studying resolved properties of the magnified background sources. Strong lensing is also valuable for constraining cosmology through lensed quasars\, which can be monitored to measure the “time delay” between the multiple images and constrain the Hubble constant ($H_0$). This method of measuring $H_0$ is independent of type Ia supernovae and CMB observations\, and may shed light on the $H_0$ tension between local universe and CMB measurements. The latest results from the TDCOSMO project constrains $H_0$ to be $\sim 72$ km/s/Mpc in a flat Lambda CDM cosmology with a precision of $\sim 5\%$. This result is maximally conservative with respect to galaxy mass profiles\, and is consistent with independent determinations of $H_0$ using type Ia supernovae calibrated by the distance ladder method. To improve this measurement\, as well as leverage the power of strong lensing to study galaxy structure and magnified background sources\, we require deep wide-area imaging surveys to build up a statistical sample of lenses\, which in general are rare objects. The Hyper-Suprime Cam SSP is an optical survey using the Subaru Telescope that covers $>1000$ deg$^2$ of the sky to a depth of $r\sim 26$. The HSC SSP strong lensing working group is focused on searching for new lenses of all types and scales and using these systems for studies of galaxy structure and cosmology. We have developed a variety of lens search methods\, including recent machine learning techniques that can be applied to future datasets such as LSST and Euclid. \n \n\nTDCOSMO 2025 milestone paper: https://arxiv.org/abs/2506.03023 \n\n\nPapers relevant for the second part of the talk:\n\nhttps://ui.adsabs.harvard.edu/abs/2018PASJ…70S..29S/\nhttps://ui.adsabs.harvard.edu/abs/2018ApJ…867..107W/\nhttps://ui.adsabs.harvard.edu/abs/2020A%26A…636A..87C/\nhttps://ui.adsabs.harvard.edu/abs/2024MNRAS.535.1625J/
URL:https://cassa.site/event/colloquium-7/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/png:https://cassa.site/wp-content/uploads/2025/06/kcw.png
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250624T120000
DTEND;TZID=UTC:20250624T133000
DTSTAMP:20260514T215040
CREATED:20250619T090435Z
LAST-MODIFIED:20250619T092440Z
UID:5531-1750766400-1750771800@cassa.site
SUMMARY:Journal Talk 2: van Zyl & Grobler 2024
DESCRIPTION:Remove First Detect Later: a counter-intuitive approach for detecting radio frequency interference in radio sky imagery  \nLink: https://doi.org/10.1093/mnras/stae979 \nPresenter: Adrita Khan \nBoth in person and online. \nTo get notifications and the Google Meet link subscribe using the Google Form: \nhttps://forms.gle/fikhmc7Y2whjJWKK9
URL:https://cassa.site/event/jtalk-2/
LOCATION:CASSA\, IUB Main Building Rooftop\, Plot 16\, Aftabuddin Ahmed Road\, Block B\, Bashundhara RA (Main Building Rooftop)\, Dhaka\, 1229\, Bangladesh
CATEGORIES:Journal Talk
ATTACH;FMTTYPE=image/webp:https://cassa.site/wp-content/uploads/2025/06/journal-talk.webp
ORGANIZER;CN="CASSA%2C Independent University%2C Bangladesh":MAILTO:cassa@iub.edu.bd
END:VEVENT
END:VCALENDAR