The Fragmentation of Filamentary Infrared Dark Clouds

Details The Fragmentation of Filamentary Infrared Dark Clouds The Fragmentation of Filamentary Infrared Dark Clouds

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atnf.prop.2137j&link_type=abstract

ATNF proposal M403, Semester: April, 2009

Computer Science

Galactic, Mopra

Scientific paper

Infrared Dark Clouds (IRDCs) are cold, dense molecular clouds seen as extinction features against the bright Galactic infrared background. Many IRDCs are filamentary and they all contain one or many cores, some of which are undergoing the earliest stages of high-mass star formation. In order to better characterize the various stages of high-mass star formation, as well as the timescales and conditions required for collapse into protostellar cores, we propose to map a sample of typical, filamentary IRDCs. These maps will provide information to determine many properties such as masses, line masses, core masses, and core spacing which can then be compared to theories of gravitational collapse. We have done this analysis for one test case, and now need to expand our sample in order to better constrain the properties of these clouds such as turbulence and magnetic fields and the roles each plays in the process of high-mass star formation.

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