Molecular Line Predictions of Embedded Super Star Cluster Envelopes

Details Molecular Line Predictions of Embedded Super Star Cluster Envelopes Molecular Line Predictions of Embedded Super Star Cluster Envelopes

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21934106w&link_type=abstract

American Astronomical Society, AAS Meeting #219, #341.06

Astronomy and Astrophysics

Astronomy

Scientific paper

A new era in millimeter-wave astronomy is opening up with the advent of Early Science at the Atacama Large Millimeter/sub-millimeter Array (ALMA). The completed array will have the sensitivity and resolution to observe many objects that are too small or too faint to observe with other facilities. One such class of objects is the embedded super star clusters - compact, massive, young star clusters in the very act of forming. In preparation for ALMA, we present predictions of molecular line strengths from the embedding envelopes around brand-new super star clusters. Following up on the dust radiative transfer models of Whelan et al. (2011), the envelope geometry is spherically symmetric. Only smooth dust distributions are computed for, leaving the testing of clumpy geometric effects for a future study. A variety of envelope density profiles are tested. Photodissociation region (PDR) models are run to determine molecular species abundances throughout the envelope, and line luminosities for CO and HCN are computed using a line radiative transfer code. Results are compared to galaxies presented in Gao & Solomon (2004) and Galactic molecular clouds in Wu et al. (2010).

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