| Re: reconstructing iraf spectra? [message #66014] |
Tue, 07 April 2009 12:02 |
Christopher Thom
Messages: 66
Registered: October 2006
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Member |
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Quoth wlandsman:
> On Apr 7, 12:00 pm, Christopher Thom <ct...@oddjob.uchicago.edu>
> wrote:
>> Hi all,
>>
>> I wonder if anyone in the astro-IDL community has code that reconstructs
>> wavelength information from an iraf-style FITS header? I have some echelle
>> spectra with many orders per file. The FITS header has a series of
>> polynomial coefficients the iraf uses to construct its wavelength
>> information. I thought I'd check to see if anyone has written code that
>> converts this header to wavelength arrays, before I write it myself?
>>
>> cheers
>> chris
>
> I haven't used them but you might look at C. Allende Prieto's IDL code
> for reading IRAF-formatted echelle spectra at
> http://hebe.as.utexas.edu/stools/
Looks like this will do the trick, with a few minor tweaks.
cheers
chris
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| Re: reconstructing iraf spectra? [message #66016 is a reply to message #66014] |
Tue, 07 April 2009 09:35  |
wlandsman
Messages: 743
Registered: June 2000
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Senior Member |
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On Apr 7, 12:00 pm, Christopher Thom <ct...@oddjob.uchicago.edu>
wrote:
> Hi all,
>
> I wonder if anyone in the astro-IDL community has code that reconstructs
> wavelength information from an iraf-style FITS header? I have some echelle
> spectra with many orders per file. The FITS header has a series of
> polynomial coefficients the iraf uses to construct its wavelength
> information. I thought I'd check to see if anyone has written code that
> converts this header to wavelength arrays, before I write it myself?
>
> cheers
> chris
I haven't used them but you might look at C. Allende Prieto's IDL code
for reading IRAF-formatted echelle spectra at
http://hebe.as.utexas.edu/stools/
--Wayne
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