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Large-scale CO observations of a far-infrared loop in Pegasus; detection of a large number of very small molecular clouds possibly formed via shocks

Published online by Cambridge University Press:  01 August 2006

Hiroaki Yamamoto ,
Akiko Kawamura ,
Kengo Tachihara ,
Norikazu Mizuno ,
Toshikazu Onishi  and
Yasuo Fukui
Hiroaki Yamamoto
Affiliation:
Department of Astrophysics, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan email: hiro@a.phys.nagoya-u.ac.jp
Akiko Kawamura
Affiliation:
Department of Astrophysics, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan email: hiro@a.phys.nagoya-u.ac.jp
Kengo Tachihara
Affiliation:
Graduate School of Science and Technology, Kobe University, 1-1 Rokko-dai, Nada-ku, Kobe 657-8501, Japan
Norikazu Mizuno
Affiliation:
Department of Astrophysics, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan email: hiro@a.phys.nagoya-u.ac.jp
Toshikazu Onishi
Affiliation:
Department of Astrophysics, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan email: hiro@a.phys.nagoya-u.ac.jp
Yasuo Fukui
Affiliation:
Department of Astrophysics, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan email: hiro@a.phys.nagoya-u.ac.jp
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Large-scale CO observations with the millimeter/submillimeter telescope NANTEN toward a whole FIR loop-like structure whose angular extent is ~20° × 20° around (l, b) ~(109°, − 45°) in Pegasus have been carried out in the 12CO (J = 1 − 0) at 4′ – 8′ grid spacing and the 12CO emitting region in the 13CO (J=1–0) at 2′ grid spacing. The diameter corresponds to ~25 pc at a distance of 100 pc, adopted from that of the star HD886(B2IV) near the center of the loop.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S237: Triggered Star Formation in a Turbulent ISM , August 2006 , pp. 500
Copyright
Copyright © International Astronomical Union 2007