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The formation of planets and brown dwarfs by disc fragmentation

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If you have a question about this talk, please contact Adrian Barker .

I will discuss the role that disc fragmentation may play in the formation of gas giant and terrestrial planets, and how this relates to the formation of brown dwarfs and low-mass stars, and ultimately to the process of star formation. Protostellar discs may fragment, if they are massive enough and can cool fast enough, but most of the objects that form by fragmentation are brown dwarfs. It may be possible that planets also form, if the mass growth of a proto-fragment is stopped (e.g. if this fragment is ejected from the disc), or suppressed and even reversed (e.g by tidal stripping). Finally, I will discuss whether there is any observational evidence for disc fragmentation.

This talk is part of the DAMTP Astrophysics Seminars series.

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