I had quick search but could find anything.
I noticed that the chandra website has FITS for a lot of its images available. Has anyone ever tried adding xray data to their astro photos?
Hi,
I overlaid ROSAT data once, which are contours in keV, see here, down near the bottom: http://www.faintgalaxy.com/ngc4651.htm
But xray data is only rarely associated with bright optical sources and mostly they are galaxy cores.
