Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aj....116..424c&link_type=abstract
The Astronomical Journal, Volume 116, Issue 1, pp. 424-428.
Astronomy and Astrophysics
Astronomy
5
Stars: Horizontal-Branch, Stars: Individual: Henry Draper Number: Hd 17072
Scientific paper
We summarize the results of a spectroscopic analysis of HD 17072, finding it to be a metal-poor ([Fe/H] = -1.17) red horizontal-branch star with T_eff = 5375 K and log g = 2.4. We also derive a radial velocity of 62.8 km s^-1. It has the best determined Hipparcos trigonometric parallax among the metal-poor field horizontal-branch stars and supports the fainter luminosities for such stars found from statistical parallax and Baade-Wesselink analyses, in contradiction to the results of main-sequence fitting of metal-poor field dwarfs to globular cluster main sequences.
Carney Bruce W.
Habgood Michael J.
Lee Jae-Woo
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