CO-0.30-0.07: A Candidate Site of Collision-induced Massive Star Formation in the Milky Way's Central Molecular Zone

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Cloud-cloud collision has long been claimed to be an efficient trigger of massive star formation. We present interferometric maps of a candidate site of collision-triggered star formation newly discovered at 40 pc projected distance from the Galactic center. The cloud CO-0.3 has an extremely broad molecular line emission of a 140 km s-1 velocity width despite of absence of any known energy sources nearby and inside the cloud. Recent observations with the Atacama Large Millimeter and Submillimeter Array have unveiled that the cloud is comprised by two distinctive velocity components which appear to contact at a thin, well-defined interface layer on the plane-of-the-sky, suggesting that the extremely broad emissions originate from shocked regions created by cloud-cloud collision.

Original languageEnglish
Title of host publicationConditions and Impact of Star Formation 2015
PublisherEDP Sciences
Pages181-184
Number of pages4
Volume75-76
ISBN (Electronic)9782759820221
DOIs
Publication statusPublished - 2016 May 20
Event6th Zermatt Symposium on Conditions and Impact of Star Formation: From Lab to Space 2015 - Zermatt, Switzerland
Duration: 2015 Sep 72015 Sep 11

Publication series

NameEAS Publications Series
Volume75-76
ISSN (Print)16334760
ISSN (Electronic)16381963

Other

Other6th Zermatt Symposium on Conditions and Impact of Star Formation: From Lab to Space 2015
CountrySwitzerland
CityZermatt
Period15/9/715/9/11

ASJC Scopus subject areas

  • Engineering(all)

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    Tanaka, K. (2016). CO-0.30-0.07: A Candidate Site of Collision-induced Massive Star Formation in the Milky Way's Central Molecular Zone. In Conditions and Impact of Star Formation 2015 (Vol. 75-76, pp. 181-184). (EAS Publications Series; Vol. 75-76). EDP Sciences. https://doi.org/10.1051/eas/1575033