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Herschel-Heterodyne Instrument for the Far-Infrared (HIFI)

de Graauw, Th. and Whyborn, N. and Caux, E. and Phillips, T. and Stutzki, J. and Tielens, A. and Güsten, R. and Helmich, F. and Luinge, W. and Martín-Pintado, J. and Pearson, J. and Planesas, P. and Roelfsema, P. and Saraceno, P. and Schieder, R. and Wildeman, K. and Wafelbakker, K. (2008) Herschel-Heterodyne Instrument for the Far-Infrared (HIFI). In: Astronomy in the Submillimeter and Far Infrared Domains with the Herschel Space Observatory. EAS Publications Series. No.34. EDP Sciences , Les Ulis, pp. 3-20. ISBN 9782759803903.

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This paper describes the Heterodyne Instrument for the Far-Infrared (HIFI) to be launched onboard of ESA's Herschel Space Observatory, by 2008. The instrument is designed to be electronically tunable over a wide and continuous frequency range in the Far Infrared, with velocity resolutions better than 0.1 km s^(-1) and a high sensitivity. This will allow detailed investigations of a wide variety of astronomical sources, ranging from solar system objects, star formation regions to nuclei of galaxies. The instrument comprises 5 frequency bands covering 480–1150 GHz with SIS mixers and a sixth dual frequency band, for the 1410–1910 GHz range, with Hot Electron Bolometer Mixers (HEB). The Local Oscillator (LO) subsystem consists of a Ka-band synthesizer followed by 14 chains of frequency multipliers, 2 chains for each frequency band. A pair of Auto-Correlators and a pair of Acousto-Optic spectrometers process the two IF signals from the dual-polarization front-ends to provide instantaneous frequency coverage of 4 GHz, with a set of resolutions (140 kHz to 1 MHz), better than <0.1 km s^(-1). After a successful qualification program, the flight instrument entered the testing phase. We will also report on the first pre-flight test and calibration results together with the expected in-flight performance.

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Additional Information:© 2009 EAS, EDP Sciences. Published online 20 December 2008.
Series Name:EAS Publications Series
Issue or Number:34
Record Number:CaltechAUTHORS:20181115-082924300
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Official Citation:The Herschel-Heterodyne Instrument for the Far-Infrared (HIFI). Th. de Graauw, N. Whyborn, E. Caux, T. Phillips, J. Stutzki, A. Tielens, R. Güsten, F. Helmich, W. Luinge, J. Martin-Pintado, J. Pearson, P. Planesas, P. Roelfsema, P. Saraceno, R. Schieder, K. Wildeman, K. Wafelbakker. EAS Publications Series 34 3-20 (2009). DOI: 10.1051/eas:0934001
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:90909
Deposited By: Tony Diaz
Deposited On:15 Nov 2018 17:13
Last Modified:16 Nov 2021 03:36

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