On the Mass Spectrum of Giant Molecular Clouds in the Large Magellanic Cloud

Details On the Mass Spectrum of Giant Molecular Clouds in the Large Magellanic Cloud On the Mass Spectrum of Giant Molecular Clouds in the Large Magellanic Cloud

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001pasj...53l..41f&link_type=abstract

Publications of the Astronomical Society of Japan, Vol.53, No. 6, pp. L41-L44

Astronomy and Astrophysics

Astronomy

52

Galaxies: Ism, Galaxies: Magellanic Clouds, Galaxies: Structure, Ism: Clouds, Radio Lines: Ism, Stars: Formation

Scientific paper

Based on a new sensitive survey of the giant molecular clouds (GMCs) in the Large Magellanic Cloud, we derived the mass spectrum for them. In the mass range from ~8×104 Msolar to 3×106 Msolar, a power law with an index value of -1.9+/-0.1 shows the best fit to the data. This is consistent with numerical simulations that explain both the HI and CO clumpy distributions by Wada et al. (2000; ApJ, 540, 797), but is significantly steeper than that of the GMCs in the Galaxy. This may be consistent with the drastic dissipation of the GMCs in the LMC due to higher UV radiation fields than in the Galaxy.

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