Submillimeter Observation of Massive Quiscent Cores

Details Submillimeter Observation of Massive Quiscent Cores Submillimeter Observation of Massive Quiscent Cores

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...20718414l&link_type=abstract

American Astronomical Society Meeting 207, #184.14; Bulletin of the American Astronomical Society, Vol. 37, p.1474

Astronomy and Astrophysics

Astronomy

Scientific paper

Using spectral line and submillimeter continuum maps, we obtained a set of dense cores in the relatively quiescent parts of the Orion molecular clouds. These cores are one order of magnitude more massive than typical starless cores in Taurus and have temperatures and turbulence decreasing toward the center. The mean mass of these cores is about 10 solar masses and they have a relative flat mass spectrum between 1 and 30 solar masses, different from that found in low mass star forming regions. Most of the cores cannot be supported thermally. Dense cores are seen to form along filaments, which can be interpreted as a sign of fragmentation. Going from the high mass core IMF observed here to stellar IMF requires further evolution in later stages of star formation.

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