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Title

The Far‐Infrared Spectrum of the Sagittarius B2 Region: Extended Molecular Absorption, Photodissociation, and Photoionization

AuthorsGoicoechea, Javier R. ; Rodríguez-Fernández, Nemesio J.; Cernicharo, José
KeywordsGalaxy: center
H ii regions
Infrared: ISM
ISM: individual (Sagittarius B2)
ISM: lines and bands
ISM: molecules
Issue Date12-Sep-2003
CitationThe Astrophysical Journal, 600:214–233, 2004
arXiv:astro-ph/0309353v1
AbstractWe present large scale 9'x 27'(25 pc x 70 pc) far-IR observations around Sgr B2 using the Long-wavelength spectrometer (LWS) on board the Infrared Space Observatory (ISO). The spectra are dominated by the strong continuum emission of dust, the widespread molecular absorption of light hydrides (OH, CH and H2O) and the fine structure lines of [NII], [NIII], [OIII], [CII] and [OI]. The molecular richness in the outer layers of Sgr B2 is probed by the ISO-LWS Fabry-Perot (35 km s^-1) detections towards Sgr B2(M), where more that 70 lines from 15 molecular and atomic species are observed at high signal to noise ratio.
URIhttp://hdl.handle.net/10261/2645
DOI10.1086/379704
ISSN1538-4357
Appears in Collections:(CFMAC-IEM) Artículos
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