Probing the distance and mass distribution of clouds

Details Probing the distance and mass distribution of clouds Probing the distance and mass distribution of clouds

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atnf.prop.3639f&link_type=abstract

ATNF proposal M576, Semester: October, 2010

Physics

Star Formation, Mopra

Scientific paper

Analysis of our new catalogue of infrared dark clouds shows that the mass distribution of clouds is similar to that of CO clumps. However the fragments within the clouds have a mass distribution which is steeper and similar to the initial mass function of stars. The origin of this transition is unclear. An analysis suggests that it not a consequence of moving from a regime where the clouds are gravitationally unbound whereas the fragments are dominated by gravity as the current observations indicate that all the clouds are gravitationally bound. However this analysis relies on two assumptions: one about the distances to the clouds and a second related to the virial mass of clouds. In this proposal we request time to test these two assumptions.

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