The birth of massive stars

Details The birth of massive stars The birth of massive stars

Apr 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978sciam.238..110z&link_type=abstract

Scientific American, vol. 238, Apr. 1978, p. 110-118.

Physics

1

Gravitational Collapse, Hot Stars, Interstellar Matter, Stellar Evolution, B Stars, Cosmic Dust, H Ii Regions, Nebulae, O Stars, Protostars, Shock Waves

Scientific paper

A mechanism is described whereby hot, massive stars are born by the gravitational collapse of cool interstellar molecular clouds. The evolution of such stars is described in seven steps, beginning with the collapse of the prestellar cloud, through the start of thermonuclear fusion, expansion and eventual outward streaming of the H II region, and ending with a naked type O or B star. Attention is given to shock waves in protostellar regions of high density, which serve to initiate collapse through gravitational instability.

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