Subject: Re: extinction

From: Gordon Richards

Submitted: Fri, 23 Feb 2001 09:53:22 -0500 (EST)

Message number: 85 (previous: 84, next: 86 up: Index)

> Is there any extinction file for APO to calibrate spectroscopy data?

No, not that I know of.  Somebody should really take the time to do this
though.  Unless I am mistaken, it just takes a few standard star
observations in photometric conditions (with a wide slit).

> If not, is it ok to use the for KPNO available in Iraf libraries?

Yes.  I have found that using the KPNO extinction is better than not
applying an extinction correction at all.


Gordon


APO APO APO APO APO  Apache Point Observatory 3.5m  APO APO APO
APO
APO  This is message 85 in the apo35-dis archive. You can find
APO  the archive on http://www.astro.princeton.edu/APO/apo35-dis/INDEX.html
APO  To join/leave the list, send mail to apo35-request@astro.princeton.edu
APO  To post a message, mail it to apo35-dis@astro.princeton.edu
APO
APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO