Classifying Luyten Stars Using An Optical-Infrared Reduced Proper Motion Diagram

Details Classifying Luyten Stars Using An Optical-Infrared Reduced Proper Motion Diagram Classifying Luyten Stars Using An Optical-Infrared Reduced Proper Motion Diagram

2002-05-08

arxiv.org/abs/astro-ph/0205129v2

Astrophys.J. 575 (2002) L83-L86

Astronomy and Astrophysics

Astrophysics

Accepted ApJL version. 3 figures (2 in color). Table of candidate new WDs closer than 20 pc is now included

Scientific paper

10.1086/342782

We present a V-J reduced proper motion (RPM) diagram for stars in the New Luyten Two-Tenths (NLTT) catalog. In sharp contrast to the RPM diagram based on the original NLTT data, this optical-infrared RPM diagram shows distinct tracks for white dwarfs, subdwarfs, and main-sequence stars. It thereby permits the identification of white-dwarf and subdwarf candidates that have a high probability of being genuine.

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