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[fitsbits] frequency definitions



 
 
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Old May 6th 09, 07:43 PM posted to sci.astro.fits
Steve Allen
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Default [fitsbits] frequency definitions

On Wed 2009-05-06T14:25:53 -0400, Arnold Rots hath writ:
And, of course, one may prefer barycentric over LSR velocities when
working on extragalactic data.


This prompts me to ask.

Is there is a paper akin to
Lindegren and Dravins
http://adsabs.harvard.edu/abs/2003A%26A...401.1185L
which addresses the same sorts of issues of
"what do we mean when we say frequency/radial-velocity?"

In particular, a paper which addresses the issues with the contexts of
both the recent IAU definitions about precision of definitions and the
traditions of radio astronomy?

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