Universität zu Köln

Lim, Wanggi ORCID: 0000-0003-4243-6809, Nakamura, Fumitaka, Wu, Benjamin, Bisbas, Thomas G., Tan, Jonathan C., Chambers, Edward ORCID: 0000-0003-4195-1032, Bally, John, Kong, Shuo, McGehee, Peregrine ORCID: 0000-0003-0948-6716, Lis, Dariusz C., Ossenkopf-Okada, Volker and Sanchez-Monge, Alvaro ORCID: 0000-0002-3078-9482 (2021). Star cluster formation in Orion A. Publ. Astron. Soc. Jpn., 73. S. S239 - 17. OXFORD: OXFORD UNIV PRESS. ISSN 2053-051X

Full text not available from this repository.

Abstract

We introduce new analysis methods for studying the star cluster formation processes in Orion A, especially examining the scenario of a cloud-cloud collision. We utilize the CARMA-NRO Orion survey (CO)-C-13 (1-0) data to compare molecular gas to the properties of young stellar objects from the SDSS III IN-SYNC survey. We show that the increase of v(13CO) - v(YSO) and Sigma scatter of older YSOs can be signals of cloud-cloud collision. SOFIA-upGREAT 158 mu m [C II] archival data toward the northern part of Orion A are also compared to the (CO)-C-13 data to test whether the position and velocity offsets between the emission from these two transitions resemble those predicted by a cloud-cloud collision model. We find that the northern part of Orion A, including regions ONC-OMC-1, OMC-2, OMC-3, and OMC-4, shows qualitative agreements with the cloud-cloud collision scenario, while in one of the southern regions, NGC 1999, there is no indication of such a process in causing the birth of new stars. On the other hand, another southern cluster, L 1641 N, shows slight tendencies of cloud-cloud collision. Overall, our results support the cloud-cloud collision process as being an important mechanism for star cluster formation in Orion A.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Lim, Wanggi UNSPECIFIED orcid.org/0000-0003-4243-6809 UNSPECIFIED Nakamura, Fumitaka UNSPECIFIED UNSPECIFIED UNSPECIFIED Wu, Benjamin UNSPECIFIED UNSPECIFIED UNSPECIFIED Bisbas, Thomas G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tan, Jonathan C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Chambers, Edward UNSPECIFIED orcid.org/0000-0003-4195-1032 UNSPECIFIED Bally, John UNSPECIFIED UNSPECIFIED UNSPECIFIED Kong, Shuo UNSPECIFIED UNSPECIFIED UNSPECIFIED McGehee, Peregrine UNSPECIFIED orcid.org/0000-0003-0948-6716 UNSPECIFIED Lis, Dariusz C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ossenkopf-Okada, Volker UNSPECIFIED UNSPECIFIED UNSPECIFIED Sanchez-Monge, Alvaro UNSPECIFIED orcid.org/0000-0002-3078-9482 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-601892
DOI:	10.1093/pasj/psaa035
Journal or Publication Title:	Publ. Astron. Soc. Jpn.
Volume:	73
Page Range:	S. S239 - 17
Date:	2021
Publisher:	OXFORD UNIV PRESS
Place of Publication:	OXFORD
ISSN:	2053-051X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language GMC COLLISIONS; FILAMENTARY STRUCTURE; INTERSTELLAR-MEDIUM; MOLECULAR CLOUDS; TRIGGERS; II.; EXTRACTION; SIGNATURES; DISTANCE; FEEDBACK Multiple languages Astronomy & Astrophysics Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/60189