[fitsbits] frequency definitions

[Arnold Rots]

Doesn't Lindegren & Dravins cover the radio case as well?
The definition is mentioned in Eq. 8.
The only thing missing from the paper, as far as I can tell, is a
discussion of LSR - LSR-K and LSR-D.

  - Arnold

Steve Allen wrote:
> 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?
> 
> --
> Steve Allen                 <sla at ucolick.org>                WGS-84 (GPS)
> UCO/Lick Observatory        Natural Sciences II, Room 165    Lat  +36.99855
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Arnold H. Rots                                Chandra X-ray Science Center
Smithsonian Astrophysical Observatory                tel:  +1 617 496 7701
60 Garden Street, MS 67                              fax:  +1 617 495 7356
Cambridge, MA 02138                             arots at head.cfa.harvard.edu
USA                                     http://hea-www.harvard.edu/~arots/
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