Computer Science
Scientific paper
Apr 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atnf.prop.2067w&link_type=abstract
ATNF proposal M300, Semester: April, 2009
Computer Science
Mag Clouds, Mopra
Scientific paper
We propose to complete a CO survey of the two nearest star-forming galaxies, the Magellanic Clouds. Such a survey is now possible following the completion of lower-resolution NANTEN surveys of the MCs, and significant improvements to the observing efficiency of Mopra. Our objectives are twofold: to map all NANTEN-detected clouds in the LMC suitable for Mopra OTF mapping, and to obtain better sensitivity for selected regions in the SMC. The improvement in angular resolution over the NANTEN surveys has already yielded important insights into molecular cloud properties. In the northern SMC, we find evidence for a population of much smaller molecular clouds than found in the well-studied SW region. In the LMC, we find a non-linear correlation between CO luminosity and virial mass, and a significantly steeper size-linewidth relation than was derived from lower resolution data. Giant molecular clouds are frequently associated with atomic envelopes of comparable or larger mass, but offsets between CO and HI intensity peaks point to higher HI opacity in molecular-dominated regions. In addition to the listed co-Is, our team includes U. Klein (Bonn), and D. Welty, L. Looney & J. Seale (Illinois); all are potential observers.
Bernard Jean-Philippe
Chu Y.-H. Y.-H.
Fukui Yasuo
Henkel Christian
Hughes Arthur
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