erosita-forum

Hello, I'm extracting spectra for nearby clusters (0.02 < z < 0.03) and I'm having issues with extracting background spectra. When I extract them at the same time as the source spectra (using BACKREG), the background spectra are often empty or have far fewer events than I would expect: https://www.s...

Dear Jeremy, Thank you for your reply. I have already set the PSFTYPE=NONE and BACKREG=NONE, so I don't think it will be those which are causing the issues. However, it is likely the first point you make about using rates without fitting the spectra first. I'll have a look into both that and MBPROJ2...

Hello, Sorry if this is the wrong place to ask this, but I am not sure which board would be better. I am currently working on extracting radial profiles of clusters to do density fitting and I'm running into a problem when using srctool to do this. My current workflow is to use srctool to extract th...

Hello, I am currently trying to convolve emission models with the eROSITA PSF. I saw this post from the EDR forum about working with PSFs, and when I checked that folder I saw that there were 2D PSF images included as well as the "slet" PSF files pointed to in that thread. I have a few que...

Hi Alain, Thank you for your reply. I had thought that the difference in processor architecture could be affecting it. Until now, I had been running it in a mounted drive, yes. I have just tested in the docker home folder and it seems to have taken just as long to run as it was when running from the...

Hello, I am trying to run expmap for a small (500 x 500 pixel, 2000 x 2000 arcsecond) image created with evtool from the eFEDS files with a specific region. While expmap does work when I run it, it takes much longer to run than I'd expect for such a small field (~3300 seconds). I wanted to check if ...