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Hydride spectroscop...
Hydride spectroscopy of the diffuse interstellar medium: new clues on the gas fraction in molecular form and cosmic ray ionization rate in relation to H-3(+)
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- Gerin, M. (author)
- LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, France
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- Levrier, F. (author)
- LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, France
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- Falgarone, E. (author)
- LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, France
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- Godard, B. (author)
- Centro de Astrobiologia (CAB)
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- Hennebelle, P. (author)
- LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, France
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- Le Petit, F. (author)
- LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, France
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- de Luca, M. (author)
- LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, France
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- Neufeld, D. A. (author)
- Johns Hopkins University
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- Sonnentrucker, P. (author)
- Space Telescope Science Institute (STScI)
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Goldsmith, P. F. (author)
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Flagey, N. (author)
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- Lis, D. C. (author)
- California Institute of Technology (Caltech)
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- Persson, Carina, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Black, John H, 1949 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Goicoechea, J. R. (author)
- Centro de Astrobiologia (CAB)
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- Menten, K. M. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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(creator_code:org_t)
- 2012-11-13
- 2012
- English.
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In: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. - : The Royal Society. - 1364-503X .- 1471-2962. ; 370:1978, s. 5174-5185
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Abstract
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- The Herschel-guaranteed time key programme PRobing InterStellar Molecules with Absorption line Studies (PRISMAS)(1) is providing a survey of the interstellar hydrides containing the elements C, O, N, F and Cl. As the building blocks of interstellar molecules, hydrides provide key information on their formation pathways. They can also be used as tracers of important physical and chemical properties of the interstellar gas that are difficult to measure otherwise. This paper presents an analysis of two sight-lines investigated by the PRISMAS project, towards the star-forming regions W49N and W51. By combining the information extracted from the detected spectral lines, we present an analysis of the physical properties of the diffuse interstellar gas, including the electron abundance, the fraction of gas in molecular form, and constraints on the cosmic ray ionization rate and the gas density.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- nitrogen
- W49N
- diffuse interstellar medium
- clouds
- chloronium
- g10.6-0.4 w31c
- herschel/hifi observations
- w49n
- absorption-lines
- regions
- meudon pdr code
- hydrides
- sight-line
- W51
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Gerin, M.
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Levrier, F.
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Falgarone, E.
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Godard, B.
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Hennebelle, P.
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Le Petit, F.
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de Luca, M.
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Neufeld, D. A.
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Sonnentrucker, P ...
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Goldsmith, P. F.
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Flagey, N.
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Lis, D. C.
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Persson, Carina, ...
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Black, John H, 1 ...
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Goicoechea, J. R ...
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Menten, K. M.
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Chalmers University of Technology