Journal
ASTROPHYSICAL JOURNAL
Volume 569, Issue 1, Pages 280-287Publisher
IOP PUBLISHING LTD
DOI: 10.1086/339230
Keywords
ISM : clouds; ISM : globules; ISM : structure; stars : formation
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We decipher intrinsic three-dimensional shape distributions of molecular clouds, cloud cores, Bok globules, and condensations using recently compiled catalogs of observed axis ratios for these objects mapped in carbon monoxide, in ammonia, through optical selection, or in continuum dust emission. We apply statistical techniques to compare assumed intrinsic axis ratio distributions with observed projected axis ratio distributions. Intrinsically triaxial shapes produce projected distributions that agree with observations. Molecular clouds mapped in (CO)-C-12 are intrinsically triaxial but more nearly prolate than oblate, while the smaller cloud cores, Bok globules, and condensations are also intrinsically triaxial but more nearly oblate than prolate.
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