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Dissociative Shocks in the Neighborhood of Orion IRc2 Traced with Atomic Carbon

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dc.creator Pardo Carrión, Juan Ramón
dc.creator Cernicharo, José
dc.creator Phillips, Thomas G.
dc.date 2007-12-28T15:44:45Z
dc.date 2007-12-28T15:44:45Z
dc.date 2005-11-20
dc.date.accessioned 2017-01-31T00:59:38Z
dc.date.available 2017-01-31T00:59:38Z
dc.identifier The Astrophysical Journal, 634:L61–L64 (2005)
dc.identifier 1538-4357
dc.identifier http://hdl.handle.net/10261/2643
dc.identifier 10.1086/498710
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2643
dc.description We present Caltech Submillimeter Observatory 10" resolution maps of the 3P2-->3P1 line of neutral atomic carbon (809.3435 GHz) and the J=7–6 line of CO (806.6518 GHz) covering a region of 2'x4'.5 around Orion IRc2 in the BN/KL Nebula. The two lines were observed with the same receiver simultaneously, and therefore the two maps have zero relative pointing error. The atomic carbon (C I) emission does not peak toward the IRc2 position and displays a very different spatial distribution with respect to most molecular species. Moderately strong red wings are detected in C I around the region defined by the high-velocity CO gas with a spatial distribution that delineates a shell of ∼20" radius. We propose that CO dissociation in the J-type shocks produced by the interaction of the IRc2 outflows with the surrounding quiescent gas could play a significant role in this enhancement of atomic carbon in that shell.
dc.description This work has been supported by Spanish DGES and PNIE grants AYA2000-1784, ESP2001-4516, and AYA2003-2785 and by US NSF grant AST 99-80846.
dc.description Peer reviewed
dc.format 658106 bytes
dc.format application/pdf
dc.language eng
dc.publisher American Astronomical Society
dc.publisher University of Chicago Press
dc.rights openAccess
dc.subject ISM: individual (Orion IRc2)
dc.subject ISM: molecules
dc.subject Line: profiles
dc.subject Radio lines: ISM
dc.subject Submillimeter
dc.title Dissociative Shocks in the Neighborhood of Orion IRc2 Traced with Atomic Carbon
dc.type Artículo


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