Kinematics Of Low-mass Stars In The Vicinity Of The Sun From The SUPERBLINK Survey

Details Kinematics Of Low-mass Stars In The Vicinity Of The Sun From The SUPERBLINK Survey Kinematics Of Low-mass Stars In The Vicinity Of The Sun From The SUPERBLINK Survey

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21110409c&link_type=abstract

American Astronomical Society, AAS Meeting #211, #104.09; Bulletin of the American Astronomical Society, Vol. 39, p.925

Astronomy and Astrophysics

Astronomy

Scientific paper

We investigate the kinematics of low-mass red dwarfs in the vicinity of the Sun using a new database of Northern Hemisphere stars with proper motions between ."04-."15/yr, identified in the SUPERBLINK survey. We have isolated stars at high Galactic northern latitudes and analyzed their projected motions in the UV velocity plane. Groups and streams of stars that are moving together in the Galaxy are qualitatively identified. It is demonstrated that low-mass stars have motions largely consistent with those of higher-mass (Sun-like) stars in the Solar vicinity. We investigate possible evidence of metallicity variations between stars associated with the Hercules, Hyades, and Sirius streams, using infrared photometry from 2MASS.

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