Properties of Circum(sub)stellar Accretion Disks

Michael C. Liu; Alan T. Tokunaga; Joan Najita

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Properties of Circum(sub)stellar Accretion Disks

Michael C. Liu·Alan T. Tokunaga·Joan Najita

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Abstract

We have completed a systematic survey for disks around young brown dwarfs and very low mass stars. By choosing a well-defined sample and by obtaining sensitive thermal IR observations, we can make an unbiased measurement of the disk fraction around such low mass objects. We find that ~75% of our sample show intrinsic IR excesses, indicative of circum(sub)stellar disks. We discuss the physical properties of these disks and their relation to the much better studied disks around solar-mass stars. The high incidence of disks around substellar objects also raises the possibility of planetary systems around brown dwarfs.

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Michael C. Liu, Alan T. Tokunaga, Joan Najita. 2002-11-06. Properties of Circum(sub)stellar Accretion Disks. https://arxiv.org/abs/astro-ph/0209079

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