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| delta_kuadrant |
12/03/2009 11:45AM (Read 3218 times)
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Status: offline
Registered: 01/26/2008
Posts: 28
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Hi allWhere I can find or download spectrophotometry standard stars for IRAF database? and how can I integrate those stars into database?
I want to do flux calibration for my spectra
sorry for noob questionsthanks-PJ-
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| fitz |
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12/03/2009 11:45AM
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Status: offline
Registered: 09/30/2005
Posts: 4040
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The standards files are located in the noao$lib/onedstds directory, see the README file in there or "help onedstds" for a listing of what's already included in case it meets your needs. Tasks like STANDARD find this database using the 'caldir' package parameter for ONEDSPEC, you can either create a similar directory yourself and set the caldir or else add new data to the onedstds$ directory itself.
The format of each file is a 3-column whitespace-delimited table of (wavelength,magnitude,width) there wavelength/width are specified in angstroms.As for where to find such data, Google is your friend as are the ADS abstracts.
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Spectorphotometry standard stars
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