Water in Star-forming Regions with the Herschel Space Observatory (WISH). I. Overview of Key Program and First Results

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Water in Star-forming Regions with the Herschel Space Observatory (WISH). I. Overview of Key Program and First Results

van Dishoeck, E. F. (author): Universiteit Leiden (UL),Leiden University (UL),Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)

Kristensen, L. (author): Universiteit Leiden (UL),Leiden University (UL)

Benz, A. O. (author): Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH)

Bergin, E. A. (author): University of Michigan

Caselli, P. (author): University of Leeds,Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory

Cernicharo, J. (author): Centro de Astrobiologia (CAB)

Herpin, F. (author): Laboratoire d'Astrophysique de Bordeaux

Hogerheijde, M. R. (author): Universiteit Leiden (UL),Leiden University (UL)

Johnstone, D. (author): National Research Council Canada,University of Victoria

Liseau, René, 1949 (author): Chalmers tekniska högskola,Chalmers University of Technology

Nisini, B. (author): Osservatorio Astronomico di Roma

Shipman, R. (author): Netherlands Institute for Space Research (SRON)

Tafalla, M. (author): Observatorio Astronómico Nacional (OAN),Spanish National Observatory (OAN)

van der Tak, F. F. S. (author): Rijksuniversiteit Groningen,University of Groningen,Netherlands Institute for Space Research (SRON)

Wyrowski, F. (author): Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)

Aikawa, Y. (author): Kobe University

Bachiller, R. (author): Observatorio Astronómico Nacional (OAN),Spanish National Observatory (OAN)

Baudry, A. (author): Laboratoire d'Astrophysique de Bordeaux

Benedettini, M. (author): Universita degli Studi di Roma Tor Vergata,University of Rome Tor Vergata

Bjerkeli, Per, 1977 (author): Chalmers tekniska högskola,Chalmers University of Technology

Blake, G. A. (author): California Institute of Technology (Caltech)

Bontemps, S. (author): Laboratoire d'Astrophysique de Bordeaux

Braine, J. (author): Laboratoire d'Astrophysique de Bordeaux

Brinch, C. (author): Universiteit Leiden (UL),Leiden University (UL)

Bruderer, S. (author): Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH)

Chavarría, L. (author): Laboratoire d'Astrophysique de Bordeaux

Codella, C. (author): Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory

Daniel, F. (author): Centro de Astrobiologia (CAB)

de Graauw, T. (author): Netherlands Institute for Space Research (SRON)

Deul, E. (author): Universiteit Leiden (UL),Leiden University (UL)

di Giorgio, A. M. (author): Universita degli Studi di Roma Tor Vergata,University of Rome Tor Vergata

Dominik, C. (author): Anton Pannekoek Institute for Astronomy,Radboud Universiteit,Radboud University

Doty, S. (author): Denison University

Dubernet, M. L. (author): Centre national de la recherche scientifique (CNRS)

Encrenaz, P. (author): LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, France

Feuchtgruber, H. (author): Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)

Fich, M. (author): University of Waterloo

Frieswijk, W. (author): Netherlands Institute for Space Research (SRON)

Fuente, A. (author): Observatorio Astronómico Nacional (OAN),Spanish National Observatory (OAN)

Giannini, T. (author): Osservatorio Astronomico di Roma

Goicoechea, J. R. (author): Centro de Astrobiologia (CAB)

Helmich, F. P. (author): Netherlands Institute for Space Research (SRON)

Herczeg, G. J. (author): Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)

Jacq, T. (author): Laboratoire d'Astrophysique de Bordeaux

Jorgensen, J. K. (author): Köpenhamns universitet,University of Copenhagen

Karska, A. (author): Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)

Kaufman, M. J. (author): San Jose State University

Keto, E. (author): Harvard-Smithsonian Center for Astrophysics

Larsson, Bengt (author): Stockholms universitet,Institutionen för astronomi

Lefloch, B. (author): Université Grenoble Alpes,Grenoble Alpes University

Lis, D. (author): California Institute of Technology (Caltech)

Marseille, M. (author): Netherlands Institute for Space Research (SRON)

McCoey, C. (author): Western University,University of Waterloo

Melnick, G. J. (author): Harvard-Smithsonian Center for Astrophysics

Neufeld, D. A. (author): Johns Hopkins University

Olberg, Michael, 1956 (author): Chalmers tekniska högskola,Chalmers University of Technology

Pagani, L. (author): LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, France

Panic, O. (author): European Southern Observatory (ESO)

Parise, B. (author): Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)

Pearson, J. C. (author)

Plume, R. (author): University of Calgary

Risacher, C. (author): Netherlands Institute for Space Research (SRON)

Salter, D. (author): Universiteit Leiden (UL),Leiden University (UL)

Santiago-García, J. (author): Institut de Radioastronomie Millimétrique (IRAM)

Saraceno, P. (author): Universita degli Studi di Roma Tor Vergata,University of Rome Tor Vergata

Stauber, P. (author): Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH)

van Kempen, T. A. (author): Universiteit Leiden (UL),Leiden University (UL)

Visser, R. (author): Universiteit Leiden (UL),Leiden University (UL)

Viti, S. (author): University College London (UCL)

Walmsley, M. (author): Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory

Wampfler, S. F. (author): Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH)

Yildiz, U. A. (author): Universiteit Leiden (UL),Leiden University (UL)

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Universiteit Leiden (UL) Max Planck Gesellschaft zur Förderung der Wissenschaften eV. (MPG) (creator_code:org_t)

IOP Publishing, 2011
2011
English.
In: Publications of the Astronomical Society of the Pacific. - : IOP Publishing. - 0004-6280 .- 1538-3873. ; 123:900, s. 138-170

Related links:: http://dx.doi.org/10...; show more...; https://pure.rug.nl/...; https://doi.org/10.1...; https://research.cha...; https://urn.kb.se/re...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

Water In Star-forming regions with Herschel (WISH) is a key program on the Herschel Space Observatory designed to probe the physical and chemical structures of young stellar objects using water and related molecules and to follow the water abundance from collapsing clouds to planet-forming disks. About 80 sources are targeted, covering a wide ranee of luminosities-from low ( 10(5) L-circle dot)-and a wide range of evolutionary stages-from cold prestellar cores to warm protostellar envelopes and outflows to disks around young stars. Both the HIFI and PACS instruments are used to observe a variety of lines of H2O, (H2O)-O-18 and chemically related species at the source position and in small maps around the protostars and selected outflow positions. In addition, high-frequency lines of CO, (CO)-C-13, and (CO)-O-18 are obtained with Herschel and are complemented by ground-based observations of dust continuum, HDO, CO and its isotopologs, and other molecules to ensure a self-consistent data set for analysis. An overview of the scientific motivation and observational strategy of the program is given, together with the modeling approach and analysis tools that have been developed. Initial science results are presented. These include a lack of water in cold gas at abundances that are lower than most predictions, strong water emission from shocks in protostellar environments, the importance of UV radiation in heating the gas along outflow walls across the full range of luminosities, and surprisingly widespread detection of the chemically related hydrides OH+ and H2O+ in outflows and foreground gas. Quantitative estimates of the energy budget indicate that H2O is generally not the dominant coolant in the warm dense gas associated with protostars. Very deep limits on the cold gaseous water reservoir in the outer regions of protoplanetary disks are obtained that have profound implications for our understanding of grain growth and mixing in disks.

Subject headings

NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

protostellar shock
young stellar objects
France.
wave-astronomy-satellite
l1157-b1
ngc-7129 firs 2
chess spectral survey
h2o
molecular clouds
Floirac
Victoria
low-mass protostars
Herzberg Inst Astrophys
far-infrared observations
hot cores
UMR 5804
vela
D.] Natl Res Council Canada
[Johnstone
gas-phase
RS INSU

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By the author/editor: van Dishoeck, E. ...; Kristensen, L.; Benz, A. O.; Bergin, E. A.; Caselli, P.; Cernicharo, J.; show more...; Herpin, F.; Hogerheijde, M. ...; Johnstone, D.; Liseau, René, 19 ...; Nisini, B.; Shipman, R.; Tafalla, M.; van der Tak, F. ...; Wyrowski, F.; Aikawa, Y.; Bachiller, R.; Baudry, A.; Benedettini, M.; Bjerkeli, Per, 1 ...; Blake, G. A.; Bontemps, S.; Braine, J.; Brinch, C.; Bruderer, S.; Chavarría, L.; Codella, C.; Daniel, F.; de Graauw, T.; Deul, E.; di Giorgio, A. M ...; Dominik, C.; Doty, S.; Dubernet, M. L.; Encrenaz, P.; Feuchtgruber, H.; Fich, M.; Frieswijk, W.; Fuente, A.; Giannini, T.; Goicoechea, J. R ...; Helmich, F. P.; Herczeg, G. J.; Jacq, T.; Jorgensen, J. K.; Karska, A.; Kaufman, M. J.; Keto, E.; Larsson, Bengt; Lefloch, B.; Lis, D.; Marseille, M.; McCoey, C.; Melnick, G. J.; Neufeld, D. A.; Olberg, Michael, ...; Pagani, L.; Panic, O.; Parise, B.; Pearson, J. C.; Plume, R.; Risacher, C.; Salter, D.; Santiago-García, ...; Saraceno, P.; Stauber, P.; van Kempen, T. A ...; Visser, R.; Viti, S.; Walmsley, M.; Wampfler, S. F.; Yildiz, U. A.; show less...

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