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11/29/2013 03:25PM (Read 694 times)
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Registered: 10/25/2013
Posts: 39
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Please check the image below.
http://www.lco.cl/draft/the-wfccd-in-multi-grism-mode/images/wfccd_quick_look_tool.gif
There are many telluric lines in the image,but one of them should be the image of the slit.How to find it?
If I have got the spectrum,is there a convenient way to get the one-to-one wavelength-pixel relationship?Then I can know the wavelength along the dispersion in the image directly.
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how to distinguish the slit image in a 2d spectrum 
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