The Central Molecular Zone of the Galaxy

Details The Central Molecular Zone of the Galaxy The Central Molecular Zone of the Galaxy

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atnf.prop.1411b&link_type=abstract

ATNF proposal M170, Semester: April, 2008

Physics

Galactic, Mopra

Scientific paper

We are undertaking a molecular mapping survey of Central Molecular Zone (CMZ) of the Galaxy. This is a unique region, where complex organic molecules are spread over 100pc-scales around the Galaxy's core, quite unlike the compact distribution of organics found within hot cores inside giant molecular clouds. The advent of the wide-band correlator at Mopra, together with OTF mapping, now makes such a project possible. In 2007 we began this survey with the inner degree of the CMZ, and propose to continue it here. The survey will take a further three semesters to complete. Through it, we will determine the distribution of 18 molecular lines, emitted between 85-93GHz, from the 3x0.5 degree region of the CMZ. This will allow us to determine the physical environment across the CMZ. We will address the questions of what makes this region different from molecular clouds in the Galactic Ring, why are organics so widespread in the CMZ, and what is their connection to the ongoing massive star formation and death prevalent across the central regions of the Galaxy?

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