Star formation in giant molecular associations synchronized by a spiral density wave

Details Star formation in giant molecular associations synchronized by a spiral density wave Star formation in giant molecular associations synchronized by a spiral density wave

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988natur.334..402v&link_type=abstract

Nature (ISSN 0028-0836), vol. 334, Aug. 4, 1988, p. 402-406.

Physics

190

Density Wave Model, Emission Spectra, Molecular Clouds, Spiral Galaxies, Star Formation, Carbon Monoxide, Cosmic Dust, Gravitational Effects, O Stars

Scientific paper

Observations of CO emission from the prototypical spiral galaxy M51 reveal density wave streaming motions in molecular gas coincident with the dust lanes. This is strong evidence that spiral density waves assemble pre-existing molecular clouds into giant associations and trigger the collapse of suitably primed clouds, leading to the formation of stars.

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