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Giant molecular clouds and star formation in the Large Magellanic Cloud

  • A. Kawamura (a1), T. Minamidani (a1), Y. Mizuno (a1), T. Onishi (a1), N. Mizuno (a1), A. Mizuno (a2) and Y. Fukui (a1)...

Abstract

In order to elucidate star formation in the Large Magellanic Cloud, a complete survey of the molecular clouds was carried out by NANTEN. In this work, we compare 230 giant molecular clouds (GMCs), whose physical quantities are well determined, with young clusters and Hii regions. We find that about 76% of the GMCs are actively forming stars or clusters, while 24% show no signs of massive star or cluster formation. Effects of supergiant shells (SGSs) on the formation of GMCs and stars are also studied. The number and surface mass densities of the GMCs are higher by a factor of 1.5–2 at the edge of the SGSs than elsewhere. It is also found that young stellar clusters are more actively formed in the GMCs facing to the center of the SGSs. These results are consistent with the previous studies by Yamaguchi et al. and suggest the formation of GMCs and the cluster is triggered by dynamical effects of the SGSs.

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References

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Giant molecular clouds and star formation in the Large Magellanic Cloud

  • A. Kawamura (a1), T. Minamidani (a1), Y. Mizuno (a1), T. Onishi (a1), N. Mizuno (a1), A. Mizuno (a2) and Y. Fukui (a1)...

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