====== CIAO ======

===== Install on Ubuntu 24.04 LTS using conda =====
After installing [[https://docs.anaconda.com/anaconda/install/linux/|anaconda3 in Ubuntu]] 18.04 LTS, follow https://cxc.cfa.harvard.edu/ciao/download/conda.html.

Here are the steps:

1. Run the following code in a terminal to install ciao and caldb and some associated software in a conda environment named "ciao-4.14".

<code>conda create -n ciao-4.14 -c https://cxc.cfa.harvard.edu/conda/ciao -c conda-forge ciao sherpa ds9 ciao-contrib caldb marx</code>

2. Activate the new conda environment: ''conda activate ciao-4.12''

2. Then install ''astropy'', ''jupyter'', ''ipykernel'' inside the ciao environment as:

''conda install -n ciao-4.12 jupyter ipykernel astropy''

3. Install git on Ubuntu: ''sudo apt-get install git''

3. Download ClusterPyXT: ''git clone https://github.com/bcalden/ClusterPyXT''

4. Go inside ClusterPyXT: ''cd ~/ClusterPyXT''

5. Initialize the system: run ''python clusterpyxt.py'' and it will ask two things: (1) CIAO installation directory (''~/anaconda3/envs/ciao-4.12''), (2) data output directory.

6. Initialize a cluster: run ''python clusterpyxt.py'' again, and answer the questions; type y/n if asked. Give the values of nH (Hydrogen column density), z, metal abundance (use 0.3 for solar abundance), and S/N (signal-to-noise ratio, use 5).

7. Download and process the cluster data: <code>python clusterpyxt.py --continue</code>.

===== ClusterPyXT =====