AST/RO Observations of CO J=4-3 Emission from the N44 Complex in the Large Magellanic Cloud

We present Antarctic Submillimeter Telescope and Remote Observatory (AST/RO) observations of 12CO J=4-3 and C I emission in the N44 H II complex in the Large Magellanic Cloud. We detected strong 12CO J=4-3 emission toward the H II region called as N44BC, which is located on the rim of an expanding g...

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Main Authors: Kim, Sungeun, Walsh, Wilfred, Xiao, Kecheng
Format: Text
Language:unknown
Published: arXiv 2004
Subjects:
Astrophysics astro-ph
FOS Physical sciences
Antarctic
Antarc*
Online Access:https://dx.doi.org/10.48550/arxiv.astro-ph/0406197
https://arxiv.org/abs/astro-ph/0406197
id ftdatacite:10.48550/arxiv.astro-ph/0406197
record_format openpolar
spelling ftdatacite:10.48550/arxiv.astro-ph/0406197 2023-05-15T13:56:33+02:00 AST/RO Observations of CO J=4-3 Emission from the N44 Complex in the Large Magellanic Cloud Kim, Sungeun Walsh, Wilfred Xiao, Kecheng 2004 https://dx.doi.org/10.48550/arxiv.astro-ph/0406197 https://arxiv.org/abs/astro-ph/0406197 unknown arXiv https://dx.doi.org/10.1086/425120 Assumed arXiv.org perpetual, non-exclusive license to distribute this article for submissions made before January 2004 http://arxiv.org/licenses/assumed-1991-2003/ Astrophysics astro-ph FOS Physical sciences article-journal Article ScholarlyArticle Text 2004 ftdatacite https://doi.org/10.48550/arxiv.astro-ph/0406197 https://doi.org/10.1086/425120 2022-04-01T16:29:12Z We present Antarctic Submillimeter Telescope and Remote Observatory (AST/RO) observations of 12CO J=4-3 and C I emission in the N44 H II complex in the Large Magellanic Cloud. We detected strong 12CO J=4-3 emission toward the H II region called as N44BC, which is located on the rim of an expanding giant shell in the N44 region. Analysis with a photodissociation region (PDR) model showed that the 12CO J=4-3 emitting cloud is very dense, with n ~ 10^5 cm^-3. We also note that there is a high-velocity component associated with the 12CO J=4-3 emission. This probably originates from molecular material accelerated as a result of the motion induced by the expanding giant shell surrounding LH47 in the N44 complex. We found that the kinetic energy of this high-velocity gas observed in the CO J=4-3 emission toward the rim of the expanding H II shell is at least an order of magnitude higher than the kinetic energy derived for the H I and H II gas in this region. : 11 pages, 5 figures, submitted to ApJ Text Antarc* Antarctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic
institution Open Polar
collection DataCite Metadata Store (German National Library of Science and Technology)
op_collection_id ftdatacite
language unknown
topic Astrophysics astro-ph
FOS Physical sciences
spellingShingle Astrophysics astro-ph
FOS Physical sciences
Kim, Sungeun
Walsh, Wilfred
Xiao, Kecheng
AST/RO Observations of CO J=4-3 Emission from the N44 Complex in the Large Magellanic Cloud
topic_facet Astrophysics astro-ph
FOS Physical sciences
description We present Antarctic Submillimeter Telescope and Remote Observatory (AST/RO) observations of 12CO J=4-3 and C I emission in the N44 H II complex in the Large Magellanic Cloud. We detected strong 12CO J=4-3 emission toward the H II region called as N44BC, which is located on the rim of an expanding giant shell in the N44 region. Analysis with a photodissociation region (PDR) model showed that the 12CO J=4-3 emitting cloud is very dense, with n ~ 10^5 cm^-3. We also note that there is a high-velocity component associated with the 12CO J=4-3 emission. This probably originates from molecular material accelerated as a result of the motion induced by the expanding giant shell surrounding LH47 in the N44 complex. We found that the kinetic energy of this high-velocity gas observed in the CO J=4-3 emission toward the rim of the expanding H II shell is at least an order of magnitude higher than the kinetic energy derived for the H I and H II gas in this region. : 11 pages, 5 figures, submitted to ApJ
format Text
author Kim, Sungeun
Walsh, Wilfred
Xiao, Kecheng
author_facet Kim, Sungeun
Walsh, Wilfred
Xiao, Kecheng
author_sort Kim, Sungeun
title AST/RO Observations of CO J=4-3 Emission from the N44 Complex in the Large Magellanic Cloud
title_short AST/RO Observations of CO J=4-3 Emission from the N44 Complex in the Large Magellanic Cloud
title_full AST/RO Observations of CO J=4-3 Emission from the N44 Complex in the Large Magellanic Cloud
title_fullStr AST/RO Observations of CO J=4-3 Emission from the N44 Complex in the Large Magellanic Cloud
title_full_unstemmed AST/RO Observations of CO J=4-3 Emission from the N44 Complex in the Large Magellanic Cloud
title_sort ast/ro observations of co j=4-3 emission from the n44 complex in the large magellanic cloud
publisher arXiv
publishDate 2004
url https://dx.doi.org/10.48550/arxiv.astro-ph/0406197
https://arxiv.org/abs/astro-ph/0406197
geographic Antarctic
geographic_facet Antarctic
genre Antarc*
Antarctic
genre_facet Antarc*
Antarctic
op_relation https://dx.doi.org/10.1086/425120
op_rights Assumed arXiv.org perpetual, non-exclusive license to distribute this article for submissions made before January 2004
http://arxiv.org/licenses/assumed-1991-2003/
op_doi https://doi.org/10.48550/arxiv.astro-ph/0406197
https://doi.org/10.1086/425120
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