Brown dwarfs forming in discs: where to look for them?

Details Brown dwarfs forming in discs: where to look for them? Brown dwarfs forming in discs: where to look for them?

2009-11-18

arxiv.org/abs/0911.3662v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

To appear in the proceedings of the conference "New technologies for probing the diversity of brown dwarfs and exoplanets", Sh

Scientific paper

A large fraction of the observed brown dwarfs may form by gravitational fragmentation of unstable discs. This model reproduces the brown dwarf desert, and provides an explanation the existence of planetary-mass objects and for the binary properties of low-mass objects. We have performed an ensemble of radiative hydrodynamic simulations and determined the statistical properties of the low-mass objects produced by gravitational fragmentation of discs. We suggest that there is a population of brown dwarfs loosely bound on wide orbits (100-5000 AU) around Sun-like stars that surveys of brown dwarf companions should target. Our simulations also indicate that planetary-mass companions to Sun-like stars are unlikely to form by disc fragmentation.

Affiliated with

Also associated with

No associations

Rating

Brown dwarfs forming in discs: where to look for them? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Brown dwarfs forming in discs: where to look for them?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brown dwarfs forming in discs: where to look for them? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-452113