Search: onr:"swepub:oai:research.chalmers.se:e9fffd80-0309-406b-ac30-15bdfaaabcd4" >
Strong absorption b...
-
Neufeld, D.A.Johns Hopkins University
(author)
Strong absorption by interstellar hydrogen fluoride: Herschel/HIFI observations of the sight-line to G10.6-0.4 (W31C)
- Article/chapterEnglish2010
Publisher, publication year, extent ...
-
2010-07-16
-
EDP Sciences,2010
-
electronicrdacarrier
Numbers
-
LIBRIS-ID:oai:research.chalmers.se:e9fffd80-0309-406b-ac30-15bdfaaabcd4
-
https://research.chalmers.se/publication/126554URI
-
https://doi.org/10.1051/0004-6361/201014523DOI
Supplementary language notes
-
Language:English
-
Summary in:English
Part of subdatabase
Classification
-
Subject category:art swepub-publicationtype
-
Subject category:ref swepub-contenttype
Notes
-
We report the detection of strong absorption by interstellar hydrogen fluoride along the sight-line to the submillimeter continuum source G10.6-0.4 (W31C). We have used Herschel's HIFI instrument, in dual beam switch mode, to observe the 1232.4763 GHz J=1-0 HF transition in the upper sideband of the Band 5a receiver. The resultant spectrum shows weak HF emission from G10.6-0.4 at LSR velocities in the range -10 to -3 km/s, accompanied by strong absorption by foreground material at LSR velocities in the range 15 to 50 km/s. The spectrum is similar to that of the 1113.3430 GHz 1(11)-0(00) transition of para-water, although at some frequencies the HF (hydrogen fluoride) optical depth clearly exceeds that of para-H2O. The optically-thick HF absorption that we have observed places a conservative lower limit of 1.6E+14 cm-2 on the HF column density along the sight-line to G10.6-0.4. Our lower limit on the HF abundance, 6E-9 relative to hydrogen nuclei, implies that hydrogen fluoride accounts for between ~ 30 and 100% of the fluorine nuclei in the gas phase along this sight-line. This observation corroborates theoretical predictions that - because the unique thermochemistry of fluorine permits the exothermic reaction of F atoms with molecular hydrogen - HF will be the dominant reservoir of interstellar fluorine under a wide range of conditions.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
-
Sonnentrucker, P.Johns Hopkins University
(author)
-
Phillips, T.G.California Institute of Technology (Caltech)
(author)
-
Lis, D.California Institute of Technology (Caltech)
(author)
-
de Luca, M.Ecole Normale Superieure (ENS)
(author)
-
Goicoechea, J. R.Centro de Astrobiologia (CAB)
(author)
-
Black, John H,1949Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jblack
(author)
-
Gerin, M.Ecole Normale Superieure (ENS)
(author)
-
Bell, T. A.California Institute of Technology (Caltech)
(author)
-
Boulanger, F.Institut d'Astrophysique Spatiale
(author)
-
Cernicharo, J.Centro de Astrobiologia (CAB)
(author)
-
Coutens, A.Université de Toulouse,University of Toulouse
(author)
-
Dartois, E.Institut d'Astrophysique Spatiale
(author)
-
Kazmierczak, M.Uniwersytet Mikolaja Kopernika w Toruniu,Nicolaus Copernicus University
(author)
-
Encrenaz, P.Ecole Normale Superieure (ENS)
(author)
-
Falgarone, E.Ecole Normale Superieure (ENS)
(author)
-
Geballe, ThomasGemini Observatory North
(author)
-
Giesen, T.Universität zu Köln,University of Cologne
(author)
-
Godard, B.Ecole Normale Superieure (ENS)
(author)
-
Goldsmith, P.F.
(author)
-
Gry, C.Laboratoire d'Astrophysique de Marseille
(author)
-
Gupta, H.
(author)
-
Hennebelle, P.Ecole Normale Superieure (ENS)
(author)
-
Herbst, E.Ohio State University
(author)
-
Hily-Blant, P.
(author)
-
Joblin, C.Université de Toulouse,University of Toulouse
(author)
-
Kolos, R.Polish Academy of Sciences
(author)
-
Krelowski, J.Uniwersytet Mikolaja Kopernika w Toruniu,Nicolaus Copernicus University
(author)
-
Martin-Pintado, J.Centro de Astrobiologia (CAB)
(author)
-
Menten, K.M.Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
(author)
-
Monje, Raquel,1979California Institute of Technology (Caltech)(Swepub:cth)em1raque
(author)
-
Mookerjea, B.Tata Institute of Fundamental Research
(author)
-
Pearson, T. J.
(author)
-
Perault, M.Ecole Normale Superieure (ENS)
(author)
-
Persson, Carina,1964Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)carina64
(author)
-
Plume, R.University of Calgary
(author)
-
Salez, M.Ecole Normale Superieure (ENS)
(author)
-
Schlemmer, S.Universität zu Köln,University of Cologne
(author)
-
Schmidt, M.Polish Academy of Sciences
(author)
-
Stutzki, J.Universität zu Köln,University of Cologne
(author)
-
Teyssier, D.European Space Astronomy Centre (ESAC)
(author)
-
Vastel, C.Tata Institute of Fundamental Research
(author)
-
Yu, S.
(author)
-
Cais, P.Université de Bordeaux,University of Bordeaux
(author)
-
Caux, E.Université de Toulouse,University of Toulouse
(author)
-
Liseau, René,1949Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)liseau
(author)
-
Morris, P.
(author)
-
Planesas, P.Atacama Large Millimeter-submillimeter Array (ALMA)
(author)
-
Johns Hopkins UniversityCalifornia Institute of Technology (Caltech)
(creator_code:org_t)
Related titles
-
In:Astronomy and Astrophysics: EDP Sciences518:4, s. 108-0004-63611432-0746
Internet link
Find in a library
To the university's database
- By the author/editor
-
Neufeld, D.A.
-
Sonnentrucker, P ...
-
Phillips, T.G.
-
Lis, D.
-
de Luca, M.
-
Goicoechea, J. R ...
-
show more...
-
Black, John H, 1 ...
-
Gerin, M.
-
Bell, T. A.
-
Boulanger, F.
-
Cernicharo, J.
-
Coutens, A.
-
Dartois, E.
-
Kazmierczak, M.
-
Encrenaz, P.
-
Falgarone, E.
-
Geballe, Thomas
-
Giesen, T.
-
Godard, B.
-
Goldsmith, P.F.
-
Gry, C.
-
Gupta, H.
-
Hennebelle, P.
-
Herbst, E.
-
Hily-Blant, P.
-
Joblin, C.
-
Kolos, R.
-
Krelowski, J.
-
Martin-Pintado, ...
-
Menten, K.M.
-
Monje, Raquel, 1 ...
-
Mookerjea, B.
-
Pearson, T. J.
-
Perault, M.
-
Persson, Carina, ...
-
Plume, R.
-
Salez, M.
-
Schlemmer, S.
-
Schmidt, M.
-
Stutzki, J.
-
Teyssier, D.
-
Vastel, C.
-
Yu, S.
-
Cais, P.
-
Caux, E.
-
Liseau, René, 19 ...
-
Morris, P.
-
Planesas, P.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Astronomy Astrop ...
- Articles in the publication
-
Astronomy and As ...
- By the university
-
Chalmers University of Technology