The Herschel-Heterodyne Instrument for the Far-Infrared (HIFI):: Instrument and pre-launch testing

被引:7
|
作者
de Graauw, Thijs [1 ]
Whyborn, Nick [1 ]
Helmich, Frank [1 ]
Dieleman, Pieter [1 ]
Roelfsema, Peter [1 ]
Caux, Emmanuel
Phillips, Tom
Stutzki, Juergen
Beintema, Douwe [1 ]
Benz, Arnold
Biver, Nicolas
Boogert, Adwin
Boulanger, Francois
Cherednichenko, Sergey
Coeur-Joly, Odile
Comito, Claudia
Dartois, Emmanuel
de Jonge, Albrecht [1 ]
de Lange, Gert [1 ]
Delorme, Ian
DiGiorgio, Anna
Dubbeldam, Luc [1 ]
Edwards, Kevin [1 ]
Fich, Michael
Guesten, Rolf
Herpin, Fabrice
Honingh, Netty
Huisman, Robert [1 ]
Jacobs, Herman [1 ]
Jellema, Willem [1 ]
Kawamura, Jon
Kester, Do [1 ]
Klapwijk, Teun
Klein, Thomas
Kooi, Jacob
Krieg, Jean-Michel
Kramer, Carsten
Kruizenga, Bob
Laauwen, Wouter [1 ]
Larsson, Bengt
Leinz, Christian
Liseau, Rene
Lord, Steve
Luinge, Willem [1 ]
Marston, Anthony [1 ]
Merkel, Harald
Moreno, Rafael
Morris, Patrick
Murphy, Anthony
Naber, Albert [1 ]
机构
[1] SRON Netherlands Inst Space Res, Groningen, Netherlands
关键词
astronomy; far infrared; sub-millimetre; space instrumentation; heterodyne receiver; spectrometer;
D O I
10.1117/12.788659
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
This paper describes the Heterodyne Instrument for the Far-Infrared (HIFI), to be launched onboard of ESA's Herschel Space Observatory, by 2008. It includes the first results from the instrument level tests. The instrument is designed to be electronically tuneable over a wide and continuous frequency range in the Far Infrared, with velocity resolutions better than 0.1 km/s with a high sensitivity. This will enable 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 dedicated Ka-band synthesizer followed by 7 times 2 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. After a successful qualification program, the flight instrument was delivered and entered the testing phase at satellite level. We will also report on the pre-flight test and calibration results together with the expected in-flight performance.
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页数:14
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