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[fitsbits] frequency definitions
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 WGS-84 (GPS) UCO/Lick Observatory Natural Sciences II, Room 165 Lat +36.99855 University of California Voice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064 http://www.ucolick.org/~sla/ Hgt +250 m _______________________________________________ fitsbits mailing list http://listmgr.cv.nrao.edu/mailman/listinfo/fitsbits -------------------------------------------------------------------------- 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 USA http://hea-www.harvard.edu/~arots/ -------------------------------------------------------------------------- |
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jesting17
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