The Onset of Planet Formation in Brown Dwarf Disks

Details The Onset of Planet Formation in Brown Dwarf Disks The Onset of Planet Formation in Brown Dwarf Disks

2005-11-14

arxiv.org/abs/astro-ph/0511420v1

Science 310 (2005) 834

Astronomy and Astrophysics

Astrophysics

Published in Science 2005, vol 310, 834; 3 pages in final format, 4 figures + 8 pages Supporting Online Material. For final ty

Scientific paper

10.1126/science.1118042

The onset of planet formation in protoplanetary disks is marked by the growth and crystallization of sub-micron-sized dust grains accompanied by dust settling toward the disk mid-plane. Here we present infrared spectra of disks around brown dwarfs and brown dwarf candidates. We show that all three processes occur in such cool disks in a way similar or identical to that in disks around low- and intermediate-mass stars. These results indicate that the onset of planet formation extends to disks around brown dwarfs, suggesting that planet formation is a robust process occurring in most young circumstellar disks.

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