Kinematics, Colors, And Ages Of Ultracool Dwarfs

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We present results from multiple spectroscopic and photometric datasets for late-M and L dwarfs in the field. These include L dwarfs selected in SDSS data release 7, ultracool dwarfs within 20pc of the Sun as part of the Brown Dwarfs Kinematics Project, and first results from our SDSS-III ancillary program to obtain spectra of late-M and L dwarfs. Combining radial velocities, proper motions, and colors from each of these complementary datasets, we examine the ages of field L dwarfs and investigate relations between color and age.

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