THE HERSCHEL-HETERODYNE INSTRUMENT FOR THE FAR-INFRARED (HIFI)

被引：24

作者：

de Graauw, Th. ^{[1
]}

Whyborn, N. ^{[1
]}

Caux, E.

Phillips, T.

Stutzki, J.

Tielens, A. ^{[1
]}

Guesten, R.

Helmich, F. ^{[1
]}

Luinge, W. ^{[1
]}

Martin-Pintado, J.

Pearson, J.

Planesas, P.

Roelfsema, P. ^{[1
]}

Saraceno, P.

Schieder, R.

Wildeman, K. ^{[1
]}

Wafelbakker, K. ^{[1
]}

机构：

[1] Natl Inst Space Res, SRON, Groningen, Netherlands

来源：

ASTRONOMY IN THE SUBMILLIMETER AND FAR INFRARED DOMAINS WITH THE HERSCHEL SPACE OBSERVATORY | 2009年 / 34卷

关键词：

THZ;

D O I：

10.1051/eas:0934001

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. The instrument is designed to be electronically tunable over a wide and continuous frequency ill 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 480-11.50 GHz with SIS mixers and a sixth dual frequency band. for the 1410-1910 GHz range, with Hot, Electron Bolometer Mixers 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 oil the first pre-flight test and calibration results together with the expected in-flight performance.

引用

页码：3 / +

页数：4

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