A New Population of Young Brown Dwarfs

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We report the discovery of a population of late-M and L field dwarfs with unusual optical and near-infrared spectral features that we attribute to low gravity -- likely uncommonly young, low-mass brown dwarfs. Many of these new-found young objects have southerly declinations and distance estimates within 60 parsecs. Intriguingly, these are the same properties of recently discovered, nearby, intermediate-age (5-50 Myr), loose associations such as Tucana/Horologium, the TW Hydrae association, and the Beta Pictoris moving group. We describe our efforts to confirm cluster membership and to further investigate this possible new young population of brown dwarfs.
5 pages, contribution to proceedings for the 14th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, 6-10 November 2006

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Astrophysics

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http://salesiana.dossiersoluciones.com/handle/123456789/123099

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/astro-ph/0702034
 http://arxiv.org/abs/astro-ph/0702034

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arXiv