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| EPoS Contribution |
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Very early stages of evolution of
low mass stars and brown dwarfs: Effect of episodic accretion
Isabelle Baraffe Ecole Normale Superieure, Lyon France and University of Exeter, Exeter, UK | |
| This paper is devoted to the very early stages of evolution of low mass stars and brown dwarfs and in particular to the effect of accretion on their structure and evolutionary properties. We present evolutionary models taking into account episodic phases of accretion at early stages of low mass stars and brown dwarfs evolution, a scenario supported by recent large surveys of embedded protostars. We show that this scenario can explain the observed luminosity spread in luminosity - effective temperaure diagrams of star forming regions at ages of a few Myr. We also predict an important spread in radius at a given Teff, as suggested by recent observations. We will also analyse the effect of episodic accretion on lithium depletion, which is usually used as a an age indicator in young clusters. | |
| Collaborators: G. Chabrier, ENS-Lyon, France |
Key publication
Suggested Session: Cores and Collapse, Early Phases of Disks |