On the Interaction of Young Massive Stars with their Environment

Details On the Interaction of Young Massive Stars with their Environment On the Interaction of Young Massive Stars with their Environment

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atnf.prop..940h&link_type=abstract

ATNF proposal M248, Semester: April, 2007

Physics

Galactic, Mopra

Scientific paper

The molecular void in NGC6334-FIRII, created by the ionization fronts and stellar winds of young massive stars, is a geometrically extremely simple target that is thus optimally suited for a study of a wide range of physical and chemical processes. Here we propose to use the MOPRA/MOPS broad band 8 GHz system to obtain spectral scans (20-28, 79-115 GHz) toward the void and its nearby environment. We intend (1) to reveal the dominant excitation mechanism at the inner edge of the cloud (PDR or shock?), (2) to study the physical and chemical parameters of the tenuous gas along the line-of-sight toward the void, (3) to search for the warm molecular component seen in H2 to study its kinematics and chemistry, and (4) to determine oxygen isotope ratios.

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