1. Herschelobservations of EXtra-Ordinary Sources (HEXOS): The Terahertz spectrum of Orion KL seen at high spectral resolution
- Author
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Thomas F. Giesen, S.-L. Qin, S. D. Lord, Alexandre Karpov, Rene Plume, Neil Trappe, Fabien Daniel, G. A. Blake, C. Joblin, Patrick W. Morris, R. Güsten, Emmanuel Caux, Peter Schilke, Rudolf Schieder, M. Perault, C. Comito, J. Stutzki, Bruce Bumble, José Cernicharo, E. A. Bergin, Stephan Schlemmer, P. J. Encrenaz, Frank Helmich, Marie-Lise Dubernet, Holger S. P. Müller, Shanshan Yu, E. Falgarone, W. D. Langer, W. D. Latter, S. Wang, Thomas G. Phillips, D. C. Lis, Pierrick Martin, S. Cabrit, David A. Neufeld, P. F. Goldsmith, H. W. Yorke, D. Johnstone, Gary J. Melnick, Karl M. Menten, Paul Hartogh, N. Honingh, Pieter R. Roelfsema, J.-M. Krieg, T. A. Bell, Volker Ossenkopf, H. Gupta, Sébastien Maret, J. Kawamura, Nathan R. Crockett, A. C. A. Boogert, Jacob Kooi, Martin Emprechtinger, Charlotte Vastel, Eric Herbst, Cecilia Ceccarelli, Aggm Tielens, J. R. Goicoechea, J. C. Pearson, J. A. Murphy, Jonas Zmuidzinas, F. F. S. van der Tak, Maryvonne Gerin, Laboratoire d'Astrophysique de Grenoble (LAOG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Faure, Alexandre, and Astronomy
- Subjects
Experimental Physics ,010504 meteorology & atmospheric sciences ,Terahertz radiation ,FOS: Physical sciences ,Astrophysics ,ISM: clouds ,7. Clean energy ,01 natural sciences ,0103 physical sciences ,Emission spectrum ,Spectral resolution ,010303 astronomy & astrophysics ,Solar and Stellar Astrophysics (astro-ph.SR) ,ComputingMilieux_MISCELLANEOUS ,ISM: general ,0105 earth and related environmental sciences ,Physics ,[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] ,astrochemistry ,Spectrum (functional analysis) ,Astronomy and Astrophysics ,ISM: molecules ,Space observatory ,On board ,Astrophysics - Solar and Stellar Astrophysics ,[SDU]Sciences of the Universe [physics] ,13. Climate action ,Space and Planetary Science ,submillimeter: ISM - Abstract
We present the first high spectral resolution observations of Orion KL in the frequency ranges 1573.4 - 1702.8 GHz (band 6b) and 1788.4 - 1906.8 GHz (band 7b) obtained using the HIFI instrument on board the Herschel Space Observatory. We characterize the main emission lines found in the spectrum, which primarily arise from a range of components associated with Orion KL including the hot core, but also see widespread emission from components associated with molecular outflows traced by H2O, SO2, and OH. We find that the density of observed emission lines is significantly diminished in these bands compared to lower frequency Herschel/HIFI bands., Accepted for publication in the Herschel HIFI special issue of Astronomy and Astrophysics Letters, 5 pages, 3 figures
- Published
- 2010
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