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Time Evolution of the Giant Molecular Cloud Mass Functions across Galactic Disks

Published online by Cambridge University Press:  09 February 2017

Masato I. N. Kobayashi ,
Shu-ichiro Inutsuka ,
Hiroshi Kobayashi  and
Kenji Hasegawa
Masato I. N. Kobayashi
Affiliation:
Division of Particle and Astrophysical Science, Graduate School of Science, Nagoya University, Aichi 464-8602, Japan email: masato.kobayashi@nagoya-u.jp
Shu-ichiro Inutsuka
Affiliation:
Division of Particle and Astrophysical Science, Graduate School of Science, Nagoya University, Aichi 464-8602, Japan email: masato.kobayashi@nagoya-u.jp
Hiroshi Kobayashi
Affiliation:
Division of Particle and Astrophysical Science, Graduate School of Science, Nagoya University, Aichi 464-8602, Japan email: masato.kobayashi@nagoya-u.jp
Kenji Hasegawa
Affiliation:
Division of Particle and Astrophysical Science, Graduate School of Science, Nagoya University, Aichi 464-8602, Japan email: masato.kobayashi@nagoya-u.jp
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Abstract

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We formulate and conduct the time-integration of time evolution equation for the giant molecular cloud mass function (GMCMF) including the cloud-cloud collision (CCC) effect. Our results show that the CCC effect is only limited in the massive-end of the GMCMF and indicate that future high resolution and sensitivity radio observations may constrain giant molecular cloud (GMC) timescales by observing the GMCMF slope in the lower mass regime.

Keywords

ISM: cloudsISM: evolutionISM: magnetic fieldsgalaxies: evolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S322: The Multi-Messenger Astrophysics of the Galactic Centre , July 2016 , pp. 158 - 159
Copyright
Copyright © International Astronomical Union 2017 

References

Colombo, D. et al. 2014, ApJ, 784, 4 CrossRefGoogle Scholar
Inoue, T. & Fukui, Y. 2013, ApJ, 774, L31 Google Scholar
Inutsuka, S., Inoue, T., Iwasaki, K., & Hosokawa, T. A&A, 580, A49 Google Scholar