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Shock fragmentation...
Shock fragmentation model for gravitational collapse
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Wilkinson, M. (författare)
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- Mehlig, Bernhard, 1964 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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Morgan, M.A. (författare)
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(creator_code:org_t)
- 2011
- 2011
- Engelska.
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Ingår i: Research in Astronomy and Astrophysics. - 1009-9271. ; 11:5, s. 545-562
- Relaterad länk:
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https://gup.ub.gu.se...
Abstract
Ämnesord
Stäng
- A cloud of gas collapsing under gravity will fragment. We present a new theory for this process, in which layers of shocked gas fragment due to their gravitational instability. Our model explains why angular momentum does not inhibit the collapse process. The theory predicts that the fragmentation process produces objects which are significantly smaller than most stars, implying that accretion onto the fragments plays an essential role in determining the initial masses of stars. This prediction is also consistent with the hypothesis that planets can be produced by gravitational collapse.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- gravitation
- instabilities
- Jeans mass
- turbulence
- star formation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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