Properties of Circum(sub)stellar Accretion Disks
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.
Keywords
Cite
@article{arxiv.astro-ph/0209079,
title = {Properties of Circum(sub)stellar Accretion Disks},
author = {Michael C. Liu and Alan T. Tokunaga and Joan Najita},
journal= {arXiv preprint arXiv:astro-ph/0209079},
year = {2007}
}
Comments
To appear in Scientific Frontiers in Research on Extrasolar Planets (ASP Conf. Proc.), in press Figure 3 replaced so that the version posted here matches the published one, as well as the final ApJ paper (astro-ph/0210523)