"Starless" Super-Jeans Cores in Four Gould Belt Clouds

Details "Starless" Super-Jeans Cores in Four Gould Belt Clouds "Starless" Super-Jeans Cores in Four Gould Belt Clouds

2010-06-09

arxiv.org/abs/1006.1924v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Accepted for publication in ApJL

Scientific paper

From a survey of 729 cores based on JCMT/SCUBA data, we present an analysis of 17 candidate starless cores with masses that exceed their stable Jeans masses. We re-examine the classification of these super-Jeans cores using Spitzer maps and find that 3 are re-classified as protostellar, 11 have ambiguous emission near the core positions, and 3 appear to be genuinely starless. We suggest the 3 starless and 11 undetermined super-Jeans cores represent excellent targets for future observational and computational study to understand the evolution of dense cores and the process of star formation.

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