Orbital migration and the brown dwarf desert
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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.
Proceedings, IAU Symp. 211 on "Brown Dwarfs", ed. E. L. Martin
Proceedings, IAU Symp. 211 on "Brown Dwarfs", ed. E. L. Martin