apetool versus photutils?
Posted: Fri Sep 30, 2022 3:43 pm
Hi all,
I wish to perform stacking using the eROSITA data, but apart from obtaining individual flux using apetool and stack, we also want to try to stack the X-ray images and measure the flux in the stack from the image. For other image data that I analyzed photutils is the typical tool to use when doing aperture photometry. I'm new to X-ray data and wonder if it would still work on X-ray images. If not, are there any suggestions on how to perform X-ray image stacking with eROSITA data?
I downloaded the images used to create the eFEDS catalogs to start with, but the image unit is not in the header...I'm guessing that the unit for both the image and the background is count?
Thank you very much!
Yuanze^_^
I wish to perform stacking using the eROSITA data, but apart from obtaining individual flux using apetool and stack, we also want to try to stack the X-ray images and measure the flux in the stack from the image. For other image data that I analyzed photutils is the typical tool to use when doing aperture photometry. I'm new to X-ray data and wonder if it would still work on X-ray images. If not, are there any suggestions on how to perform X-ray image stacking with eROSITA data?
I downloaded the images used to create the eFEDS catalogs to start with, but the image unit is not in the header...I'm guessing that the unit for both the image and the background is count?
Thank you very much!
Yuanze^_^