Massive star formation in the Carina nebula complex and Gum 31. II. A cloud–cloud collision in Gum 31

Shinji Fujita,Hidetoshi Sano,Rei Enokiya,Katsuhiro Hayashi,Mikito Kohno,Kisetsu Tsuge,Kengo Tachihara,Atsushi Nishimura,Akio Ohama,Yumiko Yamane,Takahiro Ohno,Rin I. Yamada,Yasuo Fukui

Publications of the Astronomical Society of Japan（2021）

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摘要

We present the results of analyses of the 12CO (J = 1–0), 13CO (J = 1–0), and 12CO (J = 2–1) emission data toward Gum 31. Three molecular clouds separated in velocity were detected at −25, −20, and −10 km s−1. The velocity structure of the molecular clouds in Gum 31 cannot be interpreted as an expanding motion. Two of them, the −25 km s−1 clou...

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关键词

ISM: clouds,ISM: individual (Carina),radio lines: ISM

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