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Where the Wild Young M Dwarfs Are: the SUPERBLINK Proper Motion Survey and a Search for Low-mass Moving Group Candidates

Published online by Cambridge University Press:  27 January 2016

Sébastien Lépine
Sébastien Lépine*
Affiliation:
Department of Physics and Astronomy, Georgia State University email: slepine@astro.gsu.edu
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Abstract

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The SUPERBLINK survey catalogs all stars brighter than R = 19 mag and with proper motions larger than 40 mas yr−1, down to a declination of −33○. The catalog inevitably includes a significant fraction of the presumed low-mass members of several nearby young moving groups (Beta Pic, AB Dor, Tuc-Hor, Argus), or low-mass escapees from the Hyades and Pleiades clusters. We discuss opportunities and challenges in identifying the missing M dwarf members of these moving groups. While rounding up the majority of the potential M dwarf members of these groups, such samples are significantly affected by co-moving field stars, both young and old, due to the heavy clumping of the local field population in velocity space.

Keywords

surveysstars: kinematicsstars: low-massbrown dwarfs
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Issue S314: Young Stars & Planets Near the Sun , November 2015 , pp. 69 - 70
Copyright
Copyright © International Astronomical Union 2016 

References

Lépine, S. & Shara, M. M. 2005, AJ, 129, 13Google Scholar
Lépine, S. & Gaidos, E. 2011, AJ, 142, 138CrossRefGoogle Scholar
Lépine, S. & Simon, M. 2009, AJ, 137, 383Google Scholar
Nordström, B., et al. 2004, A&A, 418, 989Google Scholar