English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/2617
Share/Impact:
Statistics
logo share SHARE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

The ISO LWS high resolution spectral survey towards Sagittarius B2

AuthorsPolehampton, Edward T.; Baluteau, Jean-Paul; Swinyard, Bruce M.; Goicoechea, Javier R. ; Brown, John M.; White, Glenn J.; Cernicharo, José ; Grundy, Timothy W.
KeywordsLine: identification
Surveys
ISM: individual: Sagittarius B2
ISM: lines and bands
ISM: molecules
Infrared: ISM
Issue Date27-Feb-2007
PublisherBlackwell Publishing
CitationarXiv:astro-ph/0702725v1
Monthly Notices of the Royal Astronomical Society (MNRAS) 377, 3 (2007), 1122-1150.
AbstractA full spectral survey was carried out towards the Giant Molecular Cloud complex, Sagittarius B2 (Sgr B2), using the ISO Long Wavelength Spectrometer Fabry-Perot mode. This provided complete wavelength coverage in the range 47-196 um (6.38-1.53 THz) with a spectral resolution of 30-40 km/s. This is an unique dataset covering wavelengths inaccessible from the ground. It is an extremely important region of the spectrum as it contains both the peak of the thermal emission from dust, and crucial spectral lines of key atomic (OI, CII, OIII, NII and NIII) and molecular species (NH3, NH2, NH, H2O, OH, H3O+, CH, CH2, C3, HF and H2D+). In total, 95 spectral lines have been identified and 11 features with absorption depth greater than 3 sigma remain unassigned. Most of the molecular lines are seen in absorption against the strong continuum, whereas the atomic and ionic lines appear in emission (except for absorption in the OI 63 um and CII 158 um lines). Sgr B2 is located close to the Galactic Centre and so many of the features also show a broad absorption profile due to material located along the line of sight. A full description of the survey dataset is given with an overview of each detected species and final line lists for both assigned and unassigned features.
DescriptionAccepted for publication in MNRAS.
URIhttp://hdl.handle.net/10261/2617
DOI10.1111/j.1365-2966.2007.11669.x
ISSN1365-2966
Appears in Collections:(CFMAC-IEM) Artículos
Files in This Item:
File Description SizeFormat 
iso.pdf815,82 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.