"STARLESS" SUPER-JEANS CORES IN FOUR GOULD BELT CLOUDS

作者:Sadavoy Sarah I*; Di Francesco James; Johnstone Doug
来源:Astrophysical Journal Letters, 2010, 718(1): L32-L37.
DOI:10.1088/2041-8205/718/1/L32

摘要

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 that 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.

  • 出版日期2010-7-20