Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001pasj...53l..45m&link_type=abstract
Publications of the Astronomical Society of Japan, Vol.53, No. 6, pp. L45-L49
Astronomy and Astrophysics
Astronomy
50
Galaxies: Magellanic Clouds, Ism: Clouds, Radio Lines: Ism, Stars: Formation
Scientific paper
We present the first results from a new CO12 (J = 1 -- 0) survey of the Small Magellanic Cloud (SMC) with the NANTEN millimeter-wave telescope. The survey covered the northeast and southwest regions of the main Bar, and the HII regions N 84, N 88 in the Wing at a linear resolution of ~ 50 pc. Twenty-one giant molecular clouds (GMCs), whose masses are ~ 104 -- 106 Msolar, were identified. Significant CO emission, T*R ~ 0.36 K, was first detected toward the N 84 region in the Wing, which is comparable to those of the prominent CO clouds associated with infrared sources LIRS 36, LIRS 49 in the Bar. The GMCs exhibit a good spatial correlation with the HII regions and young clusters, indicating that cluster formation is on-going in these GMCs. On the other hand, they show little correlation with older clusters or with supernova remnants, suggesting rapid dissipation of CO.
Fukui Yasuo
Mizuno Akira
Mizuno Norikazu
Onishi Toshikazu
Rubio M'onica
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