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SUMMARY:The thermodynamics of disc fragmentation and the properties of the
  objects produced - Stamatellos\, D (Cardiff)
DTSTART:20090818T155000Z
DTEND:20090818T161000Z
UID:TALK19511@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:We suggest that stars like our Sun should sometimes form with 
 massive discs\, and we show\, by means of radiative hydrodynamic simulatio
 ns\, that the outer parts of such discs are likely to fragment on a dynami
 cal time-scale\, forming low-mass stars\, brown dwarfs\, and planetary- ma
 ss objects. The disc thermodynamics play a critical role in this process. 
 We will present the predictions of this model and we will compare these pr
 edictions with the observed properties of low-mass stars and brown dwarfs.
  In particular\, we will show that the model of disc fragmentation can exp
 lain the binary properties of low-mass stars\, the brown dwarf desert\, an
 d the existence of free-floating planetary mass objects. We will also disc
 uss predictions of the model that can be tested by future observations. 
LOCATION:Seminar Room 1 Newton Institute
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