The formation of stars by gravitational collapse rather than competitive accretion
Article Abstract:
The rate of competitive accretion is derived as a function of the star-forming environment, based partly on simulation and the types of environments in which competitive accretion can occur are determined. It is shown that no observed star-forming region undergo significant competitive accretion, simulations show competitive accretion because the assumed properties differ from those determined by observation.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
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A minimum of column density of 1 g [cm.sup.-2] for massive star formation
Article Abstract:
The formation of massive stars, which are rarely found and exhibit excellent luminosity, is investigated. The analysis proves that massive stars can be formed only from the clouds that have column densities of at least 1 g [cm.sup.-2] and are able to avoid fragmentation.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2008
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The formation of a massive protostar through the disk accretion of gas
Article Abstract:
The observations, which clearly show a massive star being born from a large rotating accretion disk, are reported. The protostar has already assembled about 20 solar masses, and the accretion process is still going on.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2004
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