Search: onr:"swepub:oai:research.chalmers.se:7d1a7283-b32f-4bc2-a4df-52d46152dd24" > Interstellar CH abs...
Fältnamn | Indikatorer | Metadata |
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000 | 07715naa a2201165 4500 | |
001 | oai:research.chalmers.se:7d1a7283-b32f-4bc2-a4df-52d46152dd24 | |
003 | SwePub | |
008 | 171007s2010 | |||||||||||000 ||eng| | |
024 | 7 | a https://research.chalmers.se/publication/1318572 URI |
024 | 7 | a https://doi.org/10.1051/0004-6361/2010151152 DOI |
040 | a (SwePub)cth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Gerin, M.u Ecole Normale Superieure (ENS)4 aut |
245 | 1 0 | a Interstellar CH absorption in the diffuse interstellar medium along the sight-lines to G10.6-0.4 (W31C), W49N, and W51 |
264 | c 2010-10-01 | |
264 | 1 | b EDP Sciences,c 2010 |
338 | a electronic2 rdacarrier | |
520 | a We report the detection of the ground state N, J = 1, 3/2 -> 1, 1/2 doublet of the methylidyne radical CH at similar to 532 GHz and similar to 536 GHz with the Herschel/ HIFI instrument along the sight-line to the massive star-forming regions G10.6-0.4 (W31C), W49N, and W51. While the molecular cores associated with these massive star-forming regions show emission lines, clouds in the diffuse interstellar medium are detected in absorption against the strong submillimeter background. The combination of hyperfine structure with emission and absorption results in complex profiles, with overlap of the different hyperfine components. The opacities of most of the CH absorption features are linearly correlated with those of CCH, CN, and HCO+ in the same velocity intervals. In specific narrow velocity intervals, the opacities of CN and HCO+ deviate from the mean trends, giving rise to more opaque absorption features. We propose that CCH can be used as another tracer of the molecular gas in the absence of better tracers, with [CCH]/[H2] similar to 3.2 +/- 1.1 x 10-8. The observed [CN]/[CH], [CCH]/[CH] abundance ratios suggest that the bulk of the diffuse matter along the lines of sight has gas densities nH = n(H) + 2n(H2) ranging between 100 and 1000 cm-3). | |
650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
653 | a ISM: individual | |
653 | a molecular absorption | |
653 | a cn | |
653 | a ISM: individual objects: W49N | |
653 | a submillimeter: ISM | |
653 | a objects: W51 | |
653 | a objects: G10.6-0.4 | |
653 | a ISM: molecules | |
653 | a ISM: individual | |
653 | a clouds | |
653 | a comparative chemistry | |
653 | a h-2 | |
653 | a ISM: clouds | |
653 | a star-forming regions | |
700 | 1 | a de Luca, M.u Ecole Normale Superieure (ENS)4 aut |
700 | 1 | a Goicoechea, J. R.u Centro de Astrobiologia (CAB)4 aut |
700 | 1 | a Herbst, E.u Ohio State University4 aut |
700 | 1 | a Falgarone, E.u Ecole Normale Superieure (ENS)4 aut |
700 | 1 | a Godard, B.u Ecole Normale Superieure (ENS),Institut d'Astrophysique Spatiale4 aut |
700 | 1 | a Bell, T. A.u California Institute of Technology (Caltech)4 aut |
700 | 1 | a Coutens, A.u Centre national de la recherche scientifique (CNRS),Université de Toulouse,University of Toulouse4 aut |
700 | 1 | a Kazmierczak, M.u Uniwersytet Mikolaja Kopernika w Toruniu,Nicolaus Copernicus University4 aut |
700 | 1 | a Sonnentrucker, P.u Johns Hopkins University4 aut |
700 | 1 | a Black, John H,d 1949u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)jblack |
700 | 1 | a Neufeld, D. A.u Johns Hopkins University4 aut |
700 | 1 | a Phillips, T. G.u California Institute of Technology (Caltech)4 aut |
700 | 1 | a Pearson, J. C.4 aut |
700 | 1 | a Rimmer, P. B.u Ohio State University4 aut |
700 | 1 | a Hassel, G.E.u Ohio State University4 aut |
700 | 1 | a Lis, D. C.u California Institute of Technology (Caltech)4 aut |
700 | 1 | a Vastel, C.u Université de Toulouse,University of Toulouse,Centre national de la recherche scientifique (CNRS)4 aut |
700 | 1 | a Boulanger, F.u Institut d'Astrophysique Spatiale4 aut |
700 | 1 | a Cernicharo, J.u Centro de Astrobiologia (CAB)4 aut |
700 | 1 | a Dartois, E.u Institut d'Astrophysique Spatiale4 aut |
700 | 1 | a Encrenaz, P.u Ecole Normale Superieure (ENS)4 aut |
700 | 1 | a Giesen, T.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Goldsmith, P. F.4 aut |
700 | 1 | a Gupta, H.4 aut |
700 | 1 | a Gry, C.u Laboratoire d'Astrophysique de Marseille4 aut |
700 | 1 | a Hennebelle, P.u Ecole Normale Superieure (ENS)4 aut |
700 | 1 | a Hily-Blant, P.4 aut |
700 | 1 | a Joblin, C.u Université de Toulouse,University of Toulouse,Centre national de la recherche scientifique (CNRS)4 aut |
700 | 1 | a Kolos, R.u Polish Academy of Sciences4 aut |
700 | 1 | a Krelowski, J.u Uniwersytet Mikolaja Kopernika w Toruniu,Nicolaus Copernicus University4 aut |
700 | 1 | a Martin-Pintado, J.u Centro de Astrobiologia (CAB)4 aut |
700 | 1 | a Monje, Raquel,d 1979u California Institute of Technology (Caltech)4 aut0 (Swepub:cth)em1raque |
700 | 1 | a Mookerjea, B.u Tata Institute of Fundamental Research4 aut |
700 | 1 | a Perault, M.u Ecole Normale Superieure (ENS)4 aut |
700 | 1 | a Persson, Carina,d 1964u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)carina64 |
700 | 1 | a Plume, R.u University of Calgary4 aut |
700 | 1 | a Salez, M.u Ecole Normale Superieure (ENS)4 aut |
700 | 1 | a Schmidt, M.u Polish Academy of Sciences4 aut |
700 | 1 | a Stutzki, J.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Teyssier, D.u European Space Astronomy Centre (ESAC)4 aut |
700 | 1 | a Yu, S.4 aut |
700 | 1 | a Contursi, A.u MPI fur Extraterrestrische Physik4 aut |
700 | 1 | a Menten, K.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Geballe, T. R.u Gemini Observatory North4 aut |
700 | 1 | a Schlemmer, S.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Morris, P.u California Institute of Technology (Caltech)4 aut |
700 | 1 | a Hatch, W. A.4 aut |
700 | 1 | a Imram, M.4 aut |
700 | 1 | a Ward, J. S.4 aut |
700 | 1 | a Caux, E.u Université de Toulouse,University of Toulouse,Centre national de la recherche scientifique (CNRS)4 aut |
700 | 1 | a Güsten, R.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Klein, T.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
700 | 1 | a Roelfsema, P.u Netherlands Institute for Space Research (SRON)4 aut |
700 | 1 | a Dieleman, P.u Netherlands Institute for Space Research (SRON)4 aut |
700 | 1 | a Schieder, R.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Honingh, N.u Universität zu Köln,University of Cologne4 aut |
700 | 1 | a Zmuidzinas, J.u California Institute of Technology (Caltech)4 aut |
710 | 2 | a Ecole Normale Superieure (ENS)b Centro de Astrobiologia (CAB)4 org |
773 | 0 | t Astronomy and Astrophysicsd : EDP Sciencesg 521:1, s. Article Number: L16-q 521:1<Article Number: L16-x 0004-6361x 1432-0746 |
856 | 4 | u http://publications.lib.chalmers.se/records/fulltext/local_131857.pdfx primaryx freey FULLTEXT |
856 | 4 | u https://www.aanda.org/articles/aa/pdf/2010/13/aa15115-10.pdf |
856 | 4 8 | u https://research.chalmers.se/publication/131857 |
856 | 4 8 | u https://doi.org/10.1051/0004-6361/201015115 |
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