Universität zu Köln

Higgins, Ronan, Teyssier, David, Borys, Colin, Braine, Jonathan, Comito, Claudia, Delforge, Bertrand, Helmich, Frank, Olberg, Michael, Ossenkopf, Volker, Pearson, John and Shipman, Russell (2014). The effect of sideband ratio on line intensity for Herschel/HIFI. Exp. Astron., 37 (2). S. 433 - 453. DORDRECHT: SPRINGER. ISSN 1572-9508

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Abstract

The Heterodyne Instrument for the Far Infrared (HIFI) on board the Herschel Space Observatory is composed of a set of fourteen double sideband mixers. We discuss the general problem of the sideband ratio (SBR) determination and the impact of an imbalanced sideband ratio on the line calibration in double sideband heterodyne receivers. The HIFI SBR is determined from a combination of data taken during pre-launch gas cell tests and in-flight. The results and some of the calibration artefacts discovered in the gas cell test data are presented here along with some examples of how these effects appear in science data taken in orbit.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Higgins, Ronan UNSPECIFIED UNSPECIFIED UNSPECIFIED Teyssier, David UNSPECIFIED UNSPECIFIED UNSPECIFIED Borys, Colin UNSPECIFIED UNSPECIFIED UNSPECIFIED Braine, Jonathan UNSPECIFIED UNSPECIFIED UNSPECIFIED Comito, Claudia UNSPECIFIED UNSPECIFIED UNSPECIFIED Delforge, Bertrand UNSPECIFIED UNSPECIFIED UNSPECIFIED Helmich, Frank UNSPECIFIED UNSPECIFIED UNSPECIFIED Olberg, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED Ossenkopf, Volker UNSPECIFIED UNSPECIFIED UNSPECIFIED Pearson, John UNSPECIFIED UNSPECIFIED UNSPECIFIED Shipman, Russell UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-434410
DOI:	10.1007/s10686-014-9382-5
Journal or Publication Title:	Exp. Astron.
Volume:	37
Number:	2
Page Range:	S. 433 - 453
Date:	2014
Publisher:	SPRINGER
Place of Publication:	DORDRECHT
ISSN:	1572-9508
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PERFORMANCE; INSTRUMENT; HIFI Multiple languages Astronomy & Astrophysics Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/43441