X-ray image preparation

[gabriel-fontinele]

I'm new to the area of ​​x-ray data analysis, could you tell me where I can download the cluster images and what are the procedures for preparing the image for use in CADET?

[tomasplsek]

It is not so straightforward that you could download cluster images directly. What you need to do is download raw observations (event files, masks, bad pixel files, etc.) either from here https://cda.harvard.edu/chaser/ or using chandra_download_obsid command from CIAO (you need to have CIAO installed https://cxc.cfa.harvard.edu/ciao/threads/ciao_install_conda/).

After you download the data, you should follow the tutorials that you can find on that CIAO page to reprocess the data (chandra_repro), reproject them (reproject_obs), merge them and then make exposure-corrected images (merge_obs). For better performance of CADET, you can also detect point sources (wavdetect) and fill them assuming Poisson statistics (dmfilth).