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IRAF data reduction

  1. Mar 20, 2014 #1
    Hi. My name is abi. I was wondering if anyone knew how to remove pupil ghost from images using the rmpupil command in IRAF.
  2. jcsd
  3. Mar 20, 2014 #2
    Google search and google image search, "IRAF data reduction remove pupil ghost rmpupil command",


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

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


    The above is old, hope this helps? What is a pupil ghost?
  4. Mar 20, 2014 #3
    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
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