Herschel observations of EXtra-Ordinary Sources (HEXOS): The Terahertz spectrum of Orion KL seen at high spectral resolution

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Crockett, N.R., Bergin, E.A., Wang, S., Lis, D.C., Bell, T.A., Blake, G.A., Boogert, A., Bumble, B., Cabrit, S., Caux, E., Ceccarelli, C., Cernicharo, J., Comito, C., Daniel, F., Dubernet, M.-L., Emprechtinger, M., Encrenaz, P., Falgarone, E., Gerin, M., Giesen, T.F., Goicoechea, J.R., Goldsmith, P.F., Gupta, H., Gusten, R., Hartogh, P., Helmich, F., Herbst, E., Honingh, E., Joblin, C., Johnstone, D., Karpov, A., Kawamura, J., Kooi, J., Krieg, J.-M., Langer, W., Latter, W.B., Lord, S.D., Maret, S., Martin, P.G., Melnick, G.J., Menten, K.M., Morris, P., Muller, H.S.P., Murphy, J.Anthony, Neufeld, D.A., Ossenkopf, V., Pearson, J.C., Perault, M., Phillips , T.G., Plume, R., Qin, S.-L., Roelfsema, P.R., Schieder, R., Schilke, P., Schlemmer, S., Stutzki, J., van der Tak, F.F.S., Tielens, A., Trappe, Neil, Vastel, C., Yorke, H.W., Yu, S. and Zmuidzinas, J. (2010) Herschel observations of EXtra-Ordinary Sources (HEXOS): The Terahertz spectrum of Orion KL seen at high spectral resolution. Astronomy & Astrophysics, 521 (L21). pp. 1-5. ISSN 0004-6361

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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.

Item Type:	Article
Additional Information:	© ESO 2010 The original publication is available at DOI: 10.1051/0004-6361/201015116
Keywords:	astrochemistry; ISM; clouds; molecules; submillimeter; Herschel observations of EXtra-Ordinary Sources; HEXOS; Terahertz spectrum; Orion KL;
Academic Unit:	Faculty of Science and Engineering > Experimental Physics
Item ID:	3990
Depositing User:	Dr. Anthony Murphy
Date Deposited:	21 Nov 2012 16:35
Journal or Publication Title:	Astronomy & Astrophysics
Publisher:	EDP Sciences
Refereed:	Yes
Related URLs:	http://www.aanda.org/ http://publications.edpsciences.org/
URI:	https://mural.maynoothuniversity.ie/id/eprint/3990
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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Herschel observations of EXtra-Ordinary Sources (HEXOS): The Terahertz spectrum of Orion KL seen at high spectral resolution

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