Activity and Kinematics of Ultracool Dwarfs

Details Activity and Kinematics of Ultracool Dwarfs Activity and Kinematics of Ultracool Dwarfs

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.6805s&link_type=abstract

American Astronomical Society Meeting 207, #68.05; Bulletin of the American Astronomical Society, Vol. 37, p.1267

Astronomy and Astrophysics

Astronomy

Scientific paper

We present an analysis of the kinematics of a volume-limited (20 pc) sample of over 150 M and L dwarfs photometrically selected from the Two Micron All Sky Survey (2MASS). New proper motion measurements and spectrophotometric distance estimates are used to calculate tangential velocities. We combine these kinematic data with spectral observations of Hα emission to investigate the age/activity relation for low-mass stars and brown dwarfs.

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