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Water in low-mass s...
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Kristensen, L. E.Universiteit Leiden (UL),Leiden University (UL)
(author)
Water in low-mass star-forming regions with Herschel . HIFI spectroscopy of NGC 1333
- Article/chapterEnglish2010
Publisher, publication year, extent ...
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2010-10-01
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EDP Sciences,2010
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:su-51501
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-51501URI
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https://doi.org/10.1051/0004-6361/201015100DOI
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https://research.chalmers.se/publication/131359URI
Supplementary language notes
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Language:English
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Summary in:English
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Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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authorCount :67
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“Water In Star-forming regions with Herschel” (WISH) is a key programme dedicated to studying the role of water and related species during the star-formation process and constraining the physical and chemical properties of young stellar objects. The Heterodyne Instrument for the Far-Infrared (HIFI) on the Herschel Space Observatory observed three deeply embedded protostars in the low-mass star-forming region NGC 1333 in several H_216O, H_218O, and CO transitions. Line profiles are resolved for five H_216O transitions in each source, revealing them to be surprisingly complex. The line profiles are decomposed into broad (>20 km s-1), medium-broad (~5-10 km s-1), and narrow (<5 km s-1) components. The H_218O emission is only detected in broad 110-101 lines (>20 km s-1), indicating that its physical origin is the same as for the broad H_216O component. In one of the sources, IRAS4A, an inverse P Cygni profile is observed, a clear sign of infall in the envelope. From the line profiles alone, it is clear that the bulk of emission arises from shocks, both on small (⪉1000 AU) and large scales along the outflow cavity walls (~10 000 AU). The H2O line profiles are compared to CO line profiles to constrain the H2O abundance as a function of velocity within these shocked regions. The H2O/CO abundance ratios are measured to be in the range of ~0.1-1, corresponding to H2O abundances of ~10-5-10-4 with respect to H2. Approximately 5-10% of the gas is hot enough for all oxygen to be driven into water in warm post-shock gas, mostly at high velocities. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.Tables 2 and 3 (page 6) are only available in electronic form at http://www.aanda.org
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Visser, R.Universiteit Leiden (UL),Leiden University (UL)
(author)
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van Dishoeck, E. F.Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Universiteit Leiden (UL),Leiden University (UL)
(author)
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Yıldız, U. A.Universiteit Leiden (UL),Leiden University (UL)
(author)
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Doty, S. D.Denison University
(author)
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Herczeg, G. J.Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
(author)
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Liu, F.-C.Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory
(author)
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Parise, B.Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
(author)
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Jørgensen, J. K.Köpenhamns universitet,University of Copenhagen,San Jose State University
(author)
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van Kempen, T. A.Harvard-Smithsonian Center for Astrophysics,Universiteit Leiden (UL),Leiden University (UL)
(author)
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Brinch, C.Universiteit Leiden (UL),Leiden University (UL)
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Wampfler, S. F.Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH)
(author)
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Bruderer, S.Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH)
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Benz, A. O.Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH)
(author)
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Hogerheijde, M. R.Universiteit Leiden (UL),Leiden University (UL),Netherlands Institute for Space Research (SRON)
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Deul, E.Universiteit Leiden (UL),Leiden University (UL)
(author)
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Bachiller, R.Observatorio Astronómico Nacional (OAN),Spanish National Observatory (OAN)
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Baudry, A.Laboratoire d'Astrophysique de Bordeaux
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Benedettini, M.
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Bergin, E. A.University of Michigan
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Bjerkeli, Per,1977Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)gu97pebj
(author)
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Blake, G. A.California Institute of Technology (Caltech)
(author)
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Bontemps, S.Laboratoire d'Astrophysique de Bordeaux
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Braine, J.Laboratoire d'Astrophysique de Bordeaux
(author)
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Caselli, P.University of Leeds,Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory
(author)
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Cernicharo, J.Centro de Astrobiologia (CAB)
(author)
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Codella, C.Anton Pannekoek Institute for Astronomy,Radboud Universiteit,Radboud University,University of Waterloo,Western University,Netherlands Institute for Space Research (SRON)
(author)
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Daniel, F.Centro de Astrobiologia (CAB)
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de Graauw, Th.Netherlands Institute for Space Research (SRON)
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di Giorgio, A. M.
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Dominik, C.
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Encrenaz, P.LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, France
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Fich, M.University of Waterloo
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Fuente, A.Observatorio Astronómico Nacional (OAN),Spanish National Observatory (OAN)
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Giannini, T.Osservatorio Astronomico di Roma
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Goicoechea, J. R.Centro de Astrobiologia (CAB)
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Helmich, F.Netherlands Institute for Space Research (SRON)
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Herpin, F.Laboratoire d'Astrophysique de Bordeaux
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Jacq, T.Laboratoire d'Astrophysique de Bordeaux
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Johnstone, D.University of Victoria,National Research Council Canada
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Kaufman, M. J.
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Larsson, BengtStockholms universitet,Institutionen för astronomi,Stockholm University(Swepub:su)bem
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Lis, D.California Institute of Technology (Caltech)
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Liseau, René,1949Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)liseau
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Marseille, M.Observatorio Astronómico Nacional (OAN),Spanish National Observatory (OAN)
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McCoey, C.
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Melnick, G.Harvard-Smithsonian Center for Astrophysics
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Neufeld, D.Johns Hopkins University
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Nisini, B.Osservatorio Astronomico di Roma
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Olberg, Michael,1956Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)olberg
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Pearson, J. C.
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Plume, R.University of Calgary,Netherlands Institute for Space Research (SRON)
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Risacher, C.
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Santiago-García, J.Institut de Radioastronomie Millimétrique (IRAM)
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Saraceno, P.
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Shipman, R.Netherlands Institute for Space Research (SRON)
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Tafalla, M.
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Tielens, A. G. G. M.
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van der Tak, F.Netherlands Institute for Space Research (SRON),Rijksuniversiteit Groningen,University of Groningen
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Wyrowski, F.Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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Beintema, D.Netherlands Institute for Space Research (SRON)
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de Jonge, A.Netherlands Institute for Space Research (SRON)
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Dieleman, P.Netherlands Institute for Space Research (SRON)
(author)
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Ossenkopf, V.Universität zu Köln,University of Cologne
(author)
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Roelfsema, P.
(author)
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Stutzki, J.Universität zu Köln,University of Cologne
(author)
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Whyborn, N.Atacama Large Millimeter-submillimeter Array (ALMA)
(author)
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Universiteit Leiden (UL)Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG)
(creator_code:org_t)
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In:Astronomy and Astrophysics: EDP Sciences521, s. L30-0004-63611432-0746
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Yıldız, U. A.
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Doty, S. D.
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Herczeg, G. J.
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Liu, F.-C.
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Parise, B.
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Deul, E.
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