A 12CO J = 4→3 High-Velocity Cloud in the Large Magellanic Cloud
We present Antarctic Submillimeter Telescope and Remote Observatory observations of 12CO J = 4 -> 3 and 12[C I] emission in the 30 Doradus complex in the Large Magellanic Cloud. We detected strong 12CO J = 4 -> 3 emission toward R140, a multiple system of Wolf-Rayet stars located on the rim of...
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| Veröffentlicht in: | The Astronomical journal 2005-10, Vol.130 (4), p.1635-1639 |
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| container_title | The Astronomical journal |
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| creator | Kim, Sungeun Walsh, Wilfred Xiao, Kecheng Lane, Adair P |
| description | We present Antarctic Submillimeter Telescope and Remote Observatory observations of 12CO J = 4 -> 3 and 12[C I] emission in the 30 Doradus complex in the Large Magellanic Cloud. We detected strong 12CO J = 4 -> 3 emission toward R140, a multiple system of Wolf-Rayet stars located on the rim of the expanding H II shell surrounding the R136 cluster. We also detected a high-velocity gas component as a separate feature in the 12CO J = 4 -> 3 spectrum. This component probably originates from molecular material accelerated as a result of the combined motion induced by the stellar winds and explosions of supernovae, including several fast-expanding H II shells in the complex. The lower limit on the total kinetic energy of the atomic and molecular gas component is ~2 X 1051 ergs, suggesting that this comprises only 20% of the total kinetic energy contained in the H II complex structure. |
| doi_str_mv | 10.1086/432933 |
| format | Article |
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We detected strong 12CO J = 4 -> 3 emission toward R140, a multiple system of Wolf-Rayet stars located on the rim of the expanding H II shell surrounding the R136 cluster. We also detected a high-velocity gas component as a separate feature in the 12CO J = 4 -> 3 spectrum. This component probably originates from molecular material accelerated as a result of the combined motion induced by the stellar winds and explosions of supernovae, including several fast-expanding H II shells in the complex. 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| title | A 12CO J = 4→3 High-Velocity Cloud in the Large Magellanic Cloud |
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