NH3 Survey of the Vela-C and Vela-D Dust Cores Selected by BLAST

Details NH3 Survey of the Vela-C and Vela-D Dust Cores Selected by BLAST NH3 Survey of the Vela-C and Vela-D Dust Cores Selected by BLAST

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atnf.prop.2254o&link_type=abstract

ATNF proposal P688, Semester: April, 2009

Physics

Galactic, Parkes

Scientific paper

The Balloon-borne Large Aperture Submillimeter Telescope (BLAST; Pascale et al. 2008) is the closest precursor of the Herschel Space Observatory. During its second Long Duration Ballon flight in 2006, BLAST mapped about 50 square degrees in the Vela Molecular Ridge (VMR) at a sensitivity of <~1 solar mass. The continuum observations were carried out simultaneously at 250, 350, and 500 micron, i.e., at the peak (or very near it) of the cold cores SED. Thus the VMR cores found by BLAST represent an excellent sample of dense cores in which to study the initial conditions for star formation and the earliest phases of core evolution. The combination of (sub)mm and molecular line observations is a powerful method to determine the dynamical state of starless cores detected at submm wavelengths. Therefore, we propose coordinated observations of NH3(1,1) and (2,2), with the Parkes telescope, and of various molecular tracers with the Mopra telescope, of this sample.

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