From: Amara Graps (amara@amara.com)
Date: Wed Feb 12 2003 - 02:25:09 MST
http://xxx.lanl.gov/abs/astro-ph/0302206
Astrophysics, abstract
astro-ph/0302206
From: Bonnard Teegarden <bonnard@milkyway.gsfc.nasa.gov>
Date: Tue, 11 Feb 2003 18:26:01 GMT (139kb)
Discovery of a New Nearby Star
Authors: B. J. Teegarden, S. H. Pravdo, M. Hicks, S. B. Shaklan, K. Covey,
O. Fraser, S. L. Hawley, T. McGlynn, I. N. Reid
Comments: 5 pages, 3 figures. Submitted to ApJ Letters
We report the discovery of a nearby star with a very large proper
motion of 5.06 +/- 0.03 arcsec/yr. The star is called
SO025300.5+165258 and referred to herein as HPMS (high proper
motion star). The discovery came as a result of a search of the
SkyMorph database, a sensitive and persistent survey that is well
suited for finding stars with high proper motions. There are
currently only 7 known stars with proper motions > 5 arcsec/yr. We
have determined a preliminary value for the parallax of 0.43 +/-
0.13 arcsec. If this value holds our new star ranks behind only
the Alpha Centauri system (including Proxima Centauri) and
Barnard's star in the list of our nearest stellar neighbors. The
spectrum and measured tangential velocity indicate that HPMS is a
main-sequence star with spectral type M6.5. However, if our
distance measurement is correct, the HPMS is underluminous by 1.2
+/- 0.7 mag.
-- *********************************************************************** Amara Graps, PhD email: amara@amara.com Computational Physics vita: ftp://ftp.amara.com/pub/resume.txt Multiplex Answers URL: http://www.amara.com/ *********************************************************************** "Living on earth may be expensive, but it includes an annual free trip around the sun." --Ashleigh Brilliant
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