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Water in low-mass s...
Water in low-mass star-forming regions with Herschel . HIFI spectroscopy of NGC 1333
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- Kristensen, L. E. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Visser, R. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- van Dishoeck, E. F. (author)
- 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)
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show more...
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- Yıldız, U. A. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Doty, S. D. (author)
- Denison University
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- Herczeg, G. J. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Liu, F.-C. (author)
- 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
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- Parise, B. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Jørgensen, J. K. (author)
- Köpenhamns universitet,University of Copenhagen,San Jose State University
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- van Kempen, T. A. (author)
- Harvard-Smithsonian Center for Astrophysics,Universiteit Leiden (UL),Leiden University (UL)
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- Brinch, C. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Wampfler, S. F. (author)
- Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH)
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- Bruderer, S. (author)
- Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH)
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- Benz, A. O. (author)
- Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH)
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- Hogerheijde, M. R. (author)
- Universiteit Leiden (UL),Leiden University (UL),Netherlands Institute for Space Research (SRON)
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- Deul, E. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Bachiller, R. (author)
- Observatorio Astronómico Nacional (OAN),Spanish National Observatory (OAN)
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- Baudry, A. (author)
- Laboratoire d'Astrophysique de Bordeaux
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Benedettini, M. (author)
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- Bergin, E. A. (author)
- University of Michigan
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- Bjerkeli, Per, 1977 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Blake, G. A. (author)
- California Institute of Technology (Caltech)
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- Bontemps, S. (author)
- Laboratoire d'Astrophysique de Bordeaux
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- Braine, J. (author)
- Laboratoire d'Astrophysique de Bordeaux
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- Caselli, P. (author)
- University of Leeds,Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory
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- Cernicharo, J. (author)
- Centro de Astrobiologia (CAB)
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- Codella, C. (author)
- Anton Pannekoek Institute for Astronomy,Radboud Universiteit,Radboud University,University of Waterloo,Western University,Netherlands Institute for Space Research (SRON)
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- Daniel, F. (author)
- Centro de Astrobiologia (CAB)
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- de Graauw, Th. (author)
- Netherlands Institute for Space Research (SRON)
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di Giorgio, A. M. (author)
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Dominik, C. (author)
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- Encrenaz, P. (author)
- LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, France
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- Fich, M. (author)
- University of Waterloo
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- Fuente, A. (author)
- Observatorio Astronómico Nacional (OAN),Spanish National Observatory (OAN)
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- Giannini, T. (author)
- Osservatorio Astronomico di Roma
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- Goicoechea, J. R. (author)
- Centro de Astrobiologia (CAB)
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- Helmich, F. (author)
- Netherlands Institute for Space Research (SRON)
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- Herpin, F. (author)
- Laboratoire d'Astrophysique de Bordeaux
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- Jacq, T. (author)
- Laboratoire d'Astrophysique de Bordeaux
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- Johnstone, D. (author)
- University of Victoria,National Research Council Canada
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Kaufman, M. J. (author)
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- Larsson, Bengt (author)
- Stockholms universitet,Institutionen för astronomi,Stockholm University
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- Lis, D. (author)
- California Institute of Technology (Caltech)
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- Liseau, René, 1949 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Marseille, M. (author)
- Observatorio Astronómico Nacional (OAN),Spanish National Observatory (OAN)
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McCoey, C. (author)
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- Melnick, G. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Neufeld, D. (author)
- Johns Hopkins University
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- Nisini, B. (author)
- Osservatorio Astronomico di Roma
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- Olberg, Michael, 1956 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Pearson, J. C. (author)
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- Plume, R. (author)
- University of Calgary,Netherlands Institute for Space Research (SRON)
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Risacher, C. (author)
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- Santiago-García, J. (author)
- Institut de Radioastronomie Millimétrique (IRAM)
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Saraceno, P. (author)
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- Shipman, R. (author)
- Netherlands Institute for Space Research (SRON)
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Tafalla, M. (author)
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Tielens, A. G. G. M. (author)
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- van der Tak, F. (author)
- Netherlands Institute for Space Research (SRON),Rijksuniversiteit Groningen,University of Groningen
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- Wyrowski, F. (author)
- 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. (author)
- Netherlands Institute for Space Research (SRON)
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- de Jonge, A. (author)
- Netherlands Institute for Space Research (SRON)
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- Dieleman, P. (author)
- Netherlands Institute for Space Research (SRON)
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- Ossenkopf, V. (author)
- Universität zu Köln,University of Cologne
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Roelfsema, P. (author)
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- Stutzki, J. (author)
- Universität zu Köln,University of Cologne
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- Whyborn, N. (author)
- Atacama Large Millimeter-submillimeter Array (ALMA)
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Universiteit Leiden (UL) Max Planck Gesellschaft zur Förderung der Wissenschaften eV. (MPG) (creator_code:org_t)
- 2010-10-01
- 2010
- English.
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In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 521, s. L30-
- Related links:
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https://www.aanda.or...
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http://publications.... (primary) (free)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- “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
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- astrochemistry
- stars: formation
- ISM: molecules
- ISM: jets and outflows
- ISM: individual objects: NGC 1333
- Astronomy and astrophysics
- Astronomi och astrofysik
- Astronomy
- astronomi
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Kristensen, L. E ...
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Visser, R.
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van Dishoeck, E. ...
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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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show more...
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Liu, F.-C.
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Parise, B.
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Jørgensen, J. K.
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van Kempen, T. A ...
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Brinch, C.
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Wampfler, S. F.
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Bruderer, S.
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Benz, A. O.
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Hogerheijde, M. ...
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Deul, E.
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Bachiller, R.
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Baudry, A.
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Benedettini, M.
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Bergin, E. A.
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Bjerkeli, Per, 1 ...
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Blake, G. A.
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Bontemps, S.
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Braine, J.
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Caselli, P.
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Cernicharo, J.
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Codella, C.
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Daniel, F.
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de Graauw, Th.
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di Giorgio, A. M ...
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Dominik, C.
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Encrenaz, P.
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Fich, M.
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Fuente, A.
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Giannini, T.
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Goicoechea, J. R ...
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Helmich, F.
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Herpin, F.
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Jacq, T.
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Johnstone, D.
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Kaufman, M. J.
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Larsson, Bengt
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Lis, D.
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Liseau, René, 19 ...
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Marseille, M.
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McCoey, C.
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Melnick, G.
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Neufeld, D.
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Nisini, B.
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Olberg, Michael, ...
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Pearson, J. C.
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Plume, R.
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Risacher, C.
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Santiago-García, ...
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Saraceno, P.
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Shipman, R.
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Tafalla, M.
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Tielens, A. G. G ...
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van der Tak, F.
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Wyrowski, F.
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Beintema, D.
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de Jonge, A.
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Dieleman, P.
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Ossenkopf, V.
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Roelfsema, P.
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Stutzki, J.
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Whyborn, N.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
- Articles in the publication
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Astronomy and As ...
- By the university
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Stockholm University
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Chalmers University of Technology