The Initial Conditions for Star Formation in Clusters

Details The Initial Conditions for Star Formation in Clusters The Initial Conditions for Star Formation in Clusters

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atnf.prop.2065b&link_type=abstract

ATNF proposal T120, Semester: April, 2009

Astronomy and Astrophysics

Astrophysics

Galactic, Parkes

Scientific paper

A fundamental problem in astrophysics is how do stars form in clusters of 100 or more, in a region of size 1 pc, in a time of 1 Myr, with a mass distribution following the IMF. Stars form within dense gas cores, and recent work suggests the initial conditions provided by those cores are a key to the problem. We have recently mapped the distribution of dense gas in 5 nearby cluster forming regions via N2H+ 1-0 observations with Mopra, to determine their physical state. Here we propose to measure the kinetic temperature of the cores identified in the maps, through observations of the (1,1) and (2,2) lines of NH3, to determine whether thermal or non-thermal motions dominate, and whether they are bound and so likely to form new stars.

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