Orbital migration and the brown dwarf desert

P J  Armitage; I A  Bonnell

Orbital migration and the brown dwarf desert

P J Armitage
, I A Bonnell

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

The orbital elements of extreme mass ratio binaries will be modified by interactions with surrounding circumstellar disks. For brown dwarf companions to Solar-type stars the resulting orbital migration is sufficient to drive short period systems to merger, creating a brown dwarf desert at small separations. We highlight the similarities and the differences between the migration of brown dwarfs and massive extrasolar planets, and discuss how observations can test a migration model for the brown dwarf desert.

Original language	English
Pages (from-to)	31-34
Number of pages	4
Journal	BROWN DWARFS
Publication status	Published - 2003

Keywords

EXTRASOLAR PLANETS
ACCRETION DISKS
EVOLUTION
STARS

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title = "Orbital migration and the brown dwarf desert",

abstract = "The orbital elements of extreme mass ratio binaries will be modified by interactions with surrounding circumstellar disks. For brown dwarf companions to Solar-type stars the resulting orbital migration is sufficient to drive short period systems to merger, creating a brown dwarf desert at small separations. We highlight the similarities and the differences between the migration of brown dwarfs and massive extrasolar planets, and discuss how observations can test a migration model for the brown dwarf desert.",

keywords = "EXTRASOLAR PLANETS, ACCRETION DISKS, EVOLUTION, STARS",

author = "Armitage, \{P J\} and Bonnell, \{I A\}",

year = "2003",

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pages = "31--34",

journal = "BROWN DWARFS",

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TY - JOUR

T1 - Orbital migration and the brown dwarf desert

AU - Armitage, P J

AU - Bonnell, I A

PY - 2003

Y1 - 2003

N2 - The orbital elements of extreme mass ratio binaries will be modified by interactions with surrounding circumstellar disks. For brown dwarf companions to Solar-type stars the resulting orbital migration is sufficient to drive short period systems to merger, creating a brown dwarf desert at small separations. We highlight the similarities and the differences between the migration of brown dwarfs and massive extrasolar planets, and discuss how observations can test a migration model for the brown dwarf desert.

AB - The orbital elements of extreme mass ratio binaries will be modified by interactions with surrounding circumstellar disks. For brown dwarf companions to Solar-type stars the resulting orbital migration is sufficient to drive short period systems to merger, creating a brown dwarf desert at small separations. We highlight the similarities and the differences between the migration of brown dwarfs and massive extrasolar planets, and discuss how observations can test a migration model for the brown dwarf desert.

KW - EXTRASOLAR PLANETS

KW - ACCRETION DISKS

KW - EVOLUTION

KW - STARS

M3 - Article

SP - 31

EP - 34

JO - BROWN DWARFS

JF - BROWN DWARFS

ER -

Orbital migration and the brown dwarf desert

Abstract

Keywords

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