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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 09677naa a2201237 4500 | |
| 001 | oai:research.chalmers.se:d1ff4ae6-74d7-4982-a593-7b447326e794 | |
| 003 | SwePub | |
| 008 | 171007s2010 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://doi.org/10.1051/0004-6361/2010151012 DOI |
| 024 | 7 | a https://research.chalmers.se/publication/1318862 URI |
| 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 Vastel, C.u Universite Paul Sabatier Toulouse III,Paul Sabatier University,Institut National des Sciences de l'Univers4 aut |
| 245 | 1 0 | a Ortho-to-para ratio of interstellar heavy water |
| 264 | c 2010-10-01 | |
| 264 | 1 | b EDP Sciences,c 2010 |
| 338 | a electronic2 rdacarrier | |
| 520 | a Context. Despite the low elemental deuterium abundance in the Galaxy, enhanced molecular D/H ratios have been found in the environments of low-mass star-forming regions, and in particular the Class 0 protostar IRAS 16293-2422. Aims. The CHESS (Chemical HErschel Surveys of Star forming regions) key program aims to study the molecular complexity of the interstellar medium. The high sensitivity and spectral resolution of the Herschel/HIFI instrument provide a unique opportunity to observe the fundamental 1(1,1)-0(0,0) transition of the ortho-D2O molecule, which is inaccessible from the ground, and determine the ortho-to-para D2O ratio. Methods. We detected the fundamental transition of the ortho-D2O molecule at 607.35 GHz towards IRAS 16293-2422. The line is seen in absorption with a line opacity of 0.62 +/- 0.11 (1 sigma). From the previous ground-based observations of the fundamental 1(1,0)-1(0,1) transition of para-D2O seen in absorption at 316.80 GHz, we estimate a line opacity of 0.26 +/- 0.05 (1 sigma). Results. We show that the observed absorption is caused by the cold gas in the envelope of the protostar. Using these new observations, we estimate for the first time the ortho-to-para D2O ratio to be lower than 2.6 at a 3 sigma level of uncertainty, which should be compared with the thermal equilibrium value of 2:1. | |
| 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 submillimeter: ISM | |
| 653 | a spectroscopy | |
| 653 | a ISM: abundances | |
| 653 | a protostar iras 16293-2422 | |
| 653 | a envelope | |
| 653 | a constraints | |
| 653 | a astrochemistry | |
| 653 | a ISM: molecules | |
| 653 | a molecular processes | |
| 653 | a line: identification | |
| 700 | 1 | a Ceccarelli, C.u Laboratoire d'Astrophysique de Bordeaux,Institut National des Sciences de l'Univers,Université Grenoble Alpes,Grenoble Alpes University4 aut |
| 700 | 1 | a Caux, E.u Universite Paul Sabatier Toulouse III,Paul Sabatier University,Institut National des Sciences de l'Univers4 aut |
| 700 | 1 | a Coutens, A.u Institut National des Sciences de l'Univers,Universite Paul Sabatier Toulouse III,Paul Sabatier University4 aut |
| 700 | 1 | a Cernicharo, J.u Centro de Astrobiologia (CAB)4 aut |
| 700 | 1 | a Bottinelli, S.u Universite Paul Sabatier Toulouse III,Paul Sabatier University,Institut National des Sciences de l'Univers4 aut |
| 700 | 1 | a Demyk, K.u Institut National des Sciences de l'Univers,Universite Paul Sabatier Toulouse III,Paul Sabatier University4 aut |
| 700 | 1 | a Faure, A.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
| 700 | 1 | a Wiesenfeld, L.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
| 700 | 1 | a Scribano, Y.4 aut |
| 700 | 1 | a Bacmann, A.u Université Grenoble Alpes,Grenoble Alpes University,Institut National des Sciences de l'Univers,Laboratoire d'Astrophysique de Bordeaux4 aut |
| 700 | 1 | a Hily-Blant, P.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
| 700 | 1 | a Maret, S.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
| 700 | 1 | a Walters, A.u Institut National des Sciences de l'Univers,Universite Paul Sabatier Toulouse III,Paul Sabatier University4 aut |
| 700 | 1 | a Bergin, E. A.u University of Michigan4 aut |
| 700 | 1 | a Blake, G. A.u California Institute of Technology (Caltech)4 aut |
| 700 | 1 | a Castets, A.u Laboratoire d'Astrophysique de Bordeaux,Institut National des Sciences de l'Univers,Université Grenoble Alpes,Grenoble Alpes University4 aut |
| 700 | 1 | a Crimier, N.u Université Grenoble Alpes,Grenoble Alpes University,Centro de Astrobiologia (CAB)4 aut |
| 700 | 1 | a Dominik, C.u Anton Pannekoek Institute for Astronomy,Radboud Universiteit,Radboud University4 aut |
| 700 | 1 | a Encrenaz, P.u Ecole Normale Superieure (ENS)4 aut |
| 700 | 1 | a Gerin, M.u Ecole Normale Superieure (ENS)4 aut |
| 700 | 1 | a Hennebelle, P.u Ecole Normale Superieure (ENS)4 aut |
| 700 | 1 | a Kahane, C.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
| 700 | 1 | a Klotz, A.u Institut National des Sciences de l'Univers,Universite Paul Sabatier Toulouse III,Paul Sabatier University4 aut |
| 700 | 1 | a Melnick, G. J.u Harvard-Smithsonian Center for Astrophysics4 aut |
| 700 | 1 | a Pagani, L.u Ecole Normale Superieure (ENS)4 aut |
| 700 | 1 | a Parise, B.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 Schilke, P.u Universität zu Köln,University of Cologne,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut |
| 700 | 1 | a Wakelam, V.u Institut National des Sciences de l'Univers,Laboratoire d'Astrophysique de Bordeaux4 aut |
| 700 | 1 | a Baudry, A.u Laboratoire d'Astrophysique de Bordeaux,Institut National des Sciences de l'Univers4 aut |
| 700 | 1 | a Bell, T. A.u California Institute of Technology (Caltech)4 aut |
| 700 | 1 | a Benedettini, M.4 aut |
| 700 | 1 | a Boogert, A.u California Institute of Technology (Caltech)4 aut |
| 700 | 1 | a Cabrit, S.u Ecole Normale Superieure (ENS)4 aut |
| 700 | 1 | a Caselli, P.u University of Leeds4 aut |
| 700 | 1 | a Codella, C.u Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory4 aut |
| 700 | 1 | a Comito, C.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 Falgarone, E.u Ecole Normale Superieure (ENS)4 aut |
| 700 | 1 | a Fuente, A.u Observatorio Astronómico Nacional (OAN),Spanish National Observatory (OAN)4 aut |
| 700 | 1 | a Goldsmith, P. F.4 aut |
| 700 | 1 | a Helmich, F.u Netherlands Institute for Space Research (SRON)4 aut |
| 700 | 1 | a Henning, 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 Herbst, E.u Ohio State University4 aut |
| 700 | 1 | a Jacq, T.u Institut National des Sciences de l'Univers,Laboratoire d'Astrophysique de Bordeaux4 aut |
| 700 | 1 | a Kama, M.u Anton Pannekoek Institute for Astronomy4 aut |
| 700 | 1 | a Langer, W. D.4 aut |
| 700 | 1 | a Lefloch, B.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
| 700 | 1 | a Lis, D.u California Institute of Technology (Caltech)4 aut |
| 700 | 1 | a Lord, S.u California Institute of Technology (Caltech)4 aut |
| 700 | 1 | a Lorenzani, A.u Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory4 aut |
| 700 | 1 | a Neufeld, D. A.u Johns Hopkins University4 aut |
| 700 | 1 | a Nisini, B.u Osservatorio Astronomico di Roma4 aut |
| 700 | 1 | a Pacheco, S.u Université Grenoble Alpes,Grenoble Alpes University4 aut |
| 700 | 1 | a Pearson, J. C.4 aut |
| 700 | 1 | a Phillips, T.u California Institute of Technology (Caltech)4 aut |
| 700 | 1 | a Salez, M.u Ecole Normale Superieure (ENS)4 aut |
| 700 | 1 | a Saraceno, P.4 aut |
| 700 | 1 | a Schuster, K.u Institut de Radioastronomie Millimétrique (IRAM)4 aut |
| 700 | 1 | a Tielens, X.u Universiteit Leiden (UL),Leiden University (UL)4 aut |
| 700 | 1 | a van der Tak, F. F. S.u Rijksuniversiteit Groningen,University of Groningen,Netherlands Institute for Space Research (SRON)4 aut |
| 700 | 1 | a van der Wiel, M. H. D.u Netherlands Institute for Space Research (SRON),Rijksuniversiteit Groningen,University of Groningen4 aut |
| 700 | 1 | a Viti, S.u University College London (UCL)4 aut |
| 700 | 1 | a Wyrowski, F.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 Yorke, H. W.4 aut |
| 700 | 1 | a Cais, P.u Institut National des Sciences de l'Univers,Laboratoire d'Astrophysique de Bordeaux4 aut |
| 700 | 1 | a Krieg, J. M.u Ecole Normale Superieure (ENS)4 aut |
| 700 | 1 | a Olberg, Michael,d 1956u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)olberg |
| 700 | 1 | a Ravera, L.u Institut National des Sciences de l'Univers,Universite Paul Sabatier Toulouse III,Paul Sabatier University4 aut |
| 710 | 2 | a Universite Paul Sabatier Toulouse IIIb Institut National des Sciences de l'Univers4 org |
| 773 | 0 | t Astronomy and Astrophysicsd : EDP Sciencesg 521:1, s. Article Number: L31 -q 521:1<Article Number: L31 -x 0004-6361x 1432-0746 |
| 856 | 4 | u http://publications.lib.chalmers.se/records/fulltext/local_131886.pdfx primaryx freey FULLTEXT |
| 856 | 4 | u https://www.aanda.org/articles/aa/pdf/2010/13/aa15101-10.pdf |
| 856 | 4 8 | u https://doi.org/10.1051/0004-6361/201015101 |
| 856 | 4 8 | u https://research.chalmers.se/publication/131886 |
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- Vastel, C.
- Ceccarelli, C.
- Caux, E.
- Coutens, A.
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- Demyk, K.
- Faure, A.
- Wiesenfeld, L.
- Scribano, Y.
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- Walters, A.
- Bergin, E. A.
- Blake, G. A.
- Castets, A.
- Crimier, N.
- Dominik, C.
- Encrenaz, P.
- Gerin, M.
- Hennebelle, P.
- Kahane, C.
- Klotz, A.
- Melnick, G. J.
- Pagani, L.
- Parise, B.
- Schilke, P.
- Wakelam, V.
- Baudry, A.
- Bell, T. A.
- Benedettini, M.
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- Cabrit, S.
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- Falgarone, E.
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- Helmich, F.
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- Jacq, T.
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- Langer, W. D.
- Lefloch, B.
- Lis, D.
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- Lorenzani, A.
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