Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21721605w&link_type=abstract
American Astronomical Society, AAS Meeting #217, #216.05; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
With the Magellanic Mopra Assessment (MAGMA), we have recently completed a CO imaging survey of the brightest giant molecular clouds (GMCs) in the Large Magellanic Cloud (LMC). In this talk I will describe recent progress in deepening our understanding of GMC evolution using CO surveys of the LMC. The inferred properties of LMC GMCs depend a great deal on the analysis technique, but like their Galactic cousins, they appear to be roughly in virial equilibrium and are the predominant sites for massive star formation. The velocity gradients across GMCs are similar to those found in the surrounding atomic gas and do not appear indicative of rotation. The locations of GMCs relative to young stellar objects may shed light on the contentious issue of their lifetimes; we present evidence that more massive YSOs are better associated with detectable CO emission.
Hughes Arthur
MAGMA Collaboration
Wong Tony H.
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