Remove Pupil Ghost using IRAF rmpupil

[abbeynewton]

Hi. My name is abi. I was wondering if anyone knew how to remove pupil ghost from images using the rmpupil command in IRAF.

 

[Spinnor]

Hi. My name is abi. I was wondering if anyone knew how to remove pupil ghost from images using the rmpupil command in IRAF.

Google search and google image search, "IRAF data reduction remove pupil ghost rmpupil command",

https://www.google.com/search?q=IRA...+remove+pupil+ghost++rmpupil+command&safe=off

https://www.google.com/search?safe=... reduction remove pupil ghost rmpupil command

See in "New Mosaic Reduction Capabilities", section, "Removing pupil patterns: RMPUPIL"

http://iraf.noao.edu/projects/mosaic/objmasks/objmasks.html#rmpupil

The above is old, hope this helps? What is a pupil ghost?

 

[abbeynewton]

Thanks. A pupil ghost is a fixed feature that comes from multiple reflections of the diffuse background from the sky or the telescope pupil. It is seen in flat images when doing photometry