Forming Low Mass Stars and Brown Dwarfs in Protoplanetary Disks of Very Massive Stars

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Forming Low Mass Stars and Brown Dwarfs in Protoplanetary Disks of Very Massive Stars

Post by Stalker on 21st March 2010, 9:18 am

Title: Forming Low Mass Stars and Brown Dwarfs in Protoplanetary Disks of Very Massive Stars
Amit Kashi, Noam Soker
We suggest that planets, brown dwarfs, and even low mass stars can be formed
by fragmentation of protoplanetary disks around very massive stars (M>~100
solar masses). We discuss how fragmentation conditions make the formation of
very massive planetary systems around very massive stars favorable. Such
planetary systems are likely to be composed of brown dwarfs and low mass stars
of ~ 0.1-0.3 solar masses, at orbital separations of ~ few 100 - 10^4 AU. Such
fragmentation objects can be excellent targets for the James Webb Space
Telescope and other large telescopes working in the IR bands. We predict that
deep observations of very massive stars would reveal these fragmentation
objects, orbiting in the same orbital plane in cases where there are more than
one object.
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