Analysis Of The California Molecular Cloud Through CS J(2-1), HCN J(1-0), And C18O J(2-1)molecular Tracers

Details Analysis Of The California Molecular Cloud Through CS J(2-1), HCN J(1-0), And C18O J(2-1)molecular Tracers Analysis Of The California Molecular Cloud Through CS J(2-1), HCN J(1-0), And C18O J(2-1)molecular Tracers

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21934920j&link_type=abstract

American Astronomical Society, AAS Meeting #219, #349.20

Astronomy and Astrophysics

Astronomy

Scientific paper

The California Molecular Cloud (CMC) is a nearby (D 450 pc) complex cloud with a total mass similar to the Orion Molecular Cloud but with only one-tenth the star formation rate. Studies of the CMC therefore provide a unique opportunity to probe the conditions of dense molecular gas in a quiescent star forming environment. We provide CS J(2-1) and HCN J(1-0) spectra taken with the Arizona Radio Observatory 12m telescope at Kitt Peak, as well as C18O J(2-1) spectra from the Heinrich Hertz Submillimeter Telescope on Mt. Graham, AZ, for 37 high opacity cores chosen from a near-infrared extinction map of the CMC. Analysis of the line properties were made through Gaussian fits to the line profiles. We present a statistical comparison of the line properties for sources in the CMC with a sample of 36 cores in Orion A from Tatematsu et al. and a larger sample of 150 intermediate and high-mass cores from Plume et al. We acknowledge the NSF for funding under Award No. AST-0847170, a PAARE Grant for the Calfornia-Arizona Minority Partnership for Astronomy Research and Education (CAMPARE).

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