Universität zu Köln

Neill, Justin L., Bergin, Edwin A., Lis, Dariusz C., Phillips, Thomas G., Emprechtinger, Martin and Schilke, Peter (2012). Broadband analysis techniques for Herschel/HIFI spectral surveys of chemically rich star-forming regions. J. Mol. Spectrosc., 280. S. 150 - 155. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE. ISSN 0022-2852

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Abstract

The Heterodyne Instrument for the Far Infrared (HIFI) aboard the Herschel Space Observatory has acquired high-resolution broadband molecular spectra of star-forming regions in a wavelength range that is mostly inaccessible from ground-based astronomical observatories. These spectral surveys provide new insight into the chemical composition and physical properties of molecular clouds. In this manuscript, we present initial results from the HIFI spectral survey of the Sagittarius B2(N) molecular cloud, which contains spectral features assigned to at least 40 different molecules in a range of physical environments. While extensive line blending is observed due to the chemical complexity of this region, reliable molecular line identifications can be made, down to the noise floor, due to the large number of transitions detected for each species in the 1.2 THz survey bandwidth. This allows for the extraction of new weakly emitting species from the line forest. These HIFI surveys will be an invaluable archival resource for future investigations into interstellar chemistry. (C) 2012 Elsevier Inc. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Neill, Justin L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bergin, Edwin A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lis, Dariusz C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Phillips, Thomas G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Emprechtinger, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED Schilke, Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-481323
DOI:	10.1016/j.jms.2012.06.016
Journal or Publication Title:	J. Mol. Spectrosc.
Volume:	280
Page Range:	S. 150 - 155
Date:	2012
Publisher:	ACADEMIC PRESS INC ELSEVIER SCIENCE
Place of Publication:	SAN DIEGO
ISSN:	0022-2852
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SAGITTARIUS B2; LINE SURVEY; SUBMILLIMETER; MILLIMETER; SPECTROSCOPY; ASTRONOMY; METHANOL; CYANIDE; CLOUDS; SPACE Multiple languages Physics, Atomic, Molecular & Chemical; Spectroscopy Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/48132