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Star-disk interaction in brown dwarfs: implications for substellar formation

Published online by Cambridge University Press:  01 May 2007

Subhanjoy Mohanty*
Affiliation:
Harvard-Smithsonian CfA, 60 Garden Street, M.S.42, Cambridge, MA 02138, USA email: smohanty@cfa.harvard.edu
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Abstract

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I review the current state of knowledge regarding disk accretion in young brown dwarfs (BDs), and the interaction of the disk with the central object. In particular, I discuss (1) observations of accretion/outflow phenomena in BDs; (2) techniques for measuring accretion rates (acc); (3) the dependence of acc on the central mass from stars to brown dwarfs; (4) the temporal evolution of acc; and (5) observations of variability in the accretion line profiles. I then examine the implications of these issues for the formation mechanism of BDs, and discuss new observations that can further constrain substellar origins.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2007

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