Trigonometric Parallaxes and the HR Diagram at the Bottom of the Main Sequence

Details Trigonometric Parallaxes and the HR Diagram at the Bottom of the Main Sequence Trigonometric Parallaxes and the HR Diagram at the Bottom of the Main Sequence

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aj....110.3014t&link_type=abstract

Astronomical Journal v.110, p.3014

Astronomy and Astrophysics

Astronomy

59

Stars: Kinematics And Dynamics, Astrometry, Stars: Low-Mass

Scientific paper

The final results of a parallax program carried out with the 1.5 m telescope on Palomar Mountain are presented. Astrometry has been obtained for 34 very low-mass (VLM) stars, one white dwarf, and a serendipitously discovered proper motion star. Sixteen of these stars have new (or improved) parallaxes and proper motions, and a further eighteen have proper motions alone. Common proper motions have also been determined for two VLM binary systems; GD l65AB and TVLM 5l3-42404AB. The latest atmospheric and interior models for low-mass stars are combined to produce isochrones in the observational MK:I-K plane. Remarkable agreement is seen between both the solar metallicity and low metallicity models, and the observed low-mass sequences.

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