The Necessary Condition for Star Formation

Details The Necessary Condition for Star Formation The Necessary Condition for Star Formation

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.7101g&link_type=abstract

American Astronomical Society, 200th AAS Meeting, #71.01; Bulletin of the American Astronomical Society, Vol. 34, p.760

Astronomy and Astrophysics

Astronomy

Scientific paper

Star formation is a highly inefficient process. Some patches of a GMC form stars; most do not. Is there a necessary condition for star formation a core must fulfill? Large area molecular line surveys indicate that starless cores all have column densities less than 8 x 1021 cm-2. We have observed nearly one hundred starless cores in HCO+ J=3-2, a line particularly sensitive to collapse motions, to determine if a physically meaningful threshold separating quiescent from pre-protostellar cores exists.

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