Evidence for Triaxiality of Molecular Cloud Cores

Details Evidence for Triaxiality of Molecular Cloud Cores Evidence for Triaxiality of Molecular Cloud Cores

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...197.0505m&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #05.05; Bulletin of the American Astronomical Society, Vol. 32, p.1394

Astronomy and Astrophysics

Astronomy

Scientific paper

We conduct an analysis of the shapes of molecular cloud cores using recently compiled catalogs of observed axis ratios of individual cores mapped in ammonia or through optical selection. We apply both analytical and statistical techniques to de-project the observed axis ratios in order to determine the true distribution of cloud core shapes. We find that neither pure oblate or pure prolate cores can account for the observed distribution of core shapes. Intrinsically triaxial cores produce distributions which agree with observations. The best fit triaxial distribution contains cores which are more nearly oblate than prolate. This research was supported by NSERC, the Natural Sciences and Engineering Research Council of Canada.

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