DE GRAAUW, Th.; HELMICH, F. P.; PHILLIPS, T. G.; STUTZKI, J.; CAUX, E.; WHYBORN, N. D.; DIELEMAN, P.; ROELFSEMA, P. R.; AARTS, H.; ASSENDORP, R.; BACHILLER, R.; BAECHTOLD, W.; BARCIA, A.; BEINTEMA, D. A.; BELITSKY, V.; BENZ, A. O.; BIEBER, R.; BOOGERT, A.; BORYS, C.; BUMBLE, B.; CAIS, Ph.; CARIS, M.; CERULLI-IRELLI, P.; CHATTOPADHYAY, G.; CHEREDNICHENKO, S.; CIECHANOWICZ, M.; COEUR-JOLY, O.; COMITO, C.; CROS, A.; DE JONGE, A.; DE LANGE, G.; DELFORGES, B.; DELORME, Y.; DEN BOGGENDE, T.; DESBATS, J.M.; DIEZ-GONZÁLEZ, C.; DI GIORGIO, A. M.; DUBBELDAM, L.; EDWARDS, K.; EGGENS, M.; ERICKSON, N.; EVERS, J.; FICH, M.; FINN, T.; FRANKE, B.; GAIER, T.; GAL, C.; GAO, J. R.; GALLEGO, J.-D.; GAUFFRE, S.; GILL, J. J.; GLENZ, S.; GOLSTEIN, H.; GOULOOZE, H.; GUNSING, T.; GÜSTEN, R.; HARTOGH, P.; HATCH, W. A.; HIGGINS, R.; HONINGH, E. C.; HUISMAN, R.; JACKSON, B. D.; JACOBS, H.; JACOBS, K.; JARCHOW, C.; JAVADI, H.; JELLEMA, W.; JUSTEN, M.; KARPOV, A.; KASEMANN, C.; KAWAMURA, J.; KEIZER, G.; KESTER, D.; KLAPWIJK, T. M.; KLEIN, Thierry; KOLLBERG, E.; KOOI, J.; KOOIMAN, P.-P.; KOPF, B.; KRAUSE, M.; KRIEG, J.-M.; KRAMER, C.; KRUIZENGA, B.; KUHN, T.; LAAUWEN, W.; LAI, R.; LARSSON, B.; LEDUC, H. G.; LEINZ, C.; LIN, R. H.; LISEAU, R.; LIU, G. S.; LOOSE, A.; LÓPEZ-FERNANDEZ, I.; LORD, S.; LUINGE, W.; MARSTON, A.; MARTÍN-PINTADO, J.; MAESTRINI, A.; MAIWALD, F. W.; MCCOEY, C.; MEHDI, I.; MEGEJ, A.; MELCHIOR, M.; MEINSMA, L.; MERKEL, H.; MICHALSKA, M.; MONSTEIN, C.; MORATSCHKE, D.; MORRIS, P.; MULLER, H.; MURPHY, J. A.; NABER, A.; NATALE, E.; NOWOSIELSKI, W.; NUZZOLO, F.; OLBERG, M.; OLBRICH, M.; ORFEI, R.; ORLEANSKI, P.; OSSENKOPF, V.; PEACOCK, T.; PEARSON, J. C.; PERON, I.; PHILLIP-MAY, S.; PIAZZO, L.; PLANESAS, P.; RATAJ, M.; RAVERA, L.; RISACHER, C.; SALEZ, M.; SAMOSKA, L. A.; SARACENO, P.; SCHIEDER, R.; SCHLECHT, E.; SCHLÖDER, F.; SCHMÜLLING, F.; SCHULTZ, M.; SCHUSTER, K.; SIEBERTZ, O.; SMIT, H.; SZCZERBA, R.; SHIPMAN, R.; STEINMETZ, E.; STERN, J. A.; STOKROOS, M.; TEIPEN, R.; TEYSSIER, D.; TILS, T.; TRAPPE, N.; VAN BAAREN, C.; VAN LEEUWEN, B.-J.; VAN DE STADT, H.; VISSER, H.; WILDEMAN, K. J.; WAFELBAKKER, C. K.; WARD, J. S.; WESSELIUS, P.; WILD, W.; WULFF, S.; WUNSCH, H.-J.; TIELENS, X.; ZAAL, P.; ZIRATH, H.; ZMUIDZINAS, J.; ZWART, F.

doi:10.1051/0004-6361/201014698

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DE GRAAUW, Th.

HELMICH, F. P.

PHILLIPS, T. G.
California Institute of Technology [CALTECH]

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Astronomy and Astrophysics - A&A. 2010-07, vol. 518, p. L6

EDP Sciences

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Aims: This paper describes the Heterodyne Instrument for the Far-Infrared (HIFI) that was launched onboard ESA's Herschel Space Observatory in May 2009. Methods: The instrument is a set of 7 heterodyne receivers that are electronically tuneable, covering 480-1250 GHz with SIS mixers and the 1410-1910 GHz range with hot electron bolometer (HEB) mixers. The local oscillator (LO) subsystem comprises a Ka-band synthesizer followed by 14 chains of frequency multipliers and 2 chains for each frequency band. A pair of auto-correlators and a pair of acousto-optical spectrometers process the two IF signals from the dual-polarization, single-pixel front-ends to provide instantaneous frequency coverage of 2 × 4 GHz, with a set of resolutions (125 kHz to 1 MHz) that are better than 0.1 km s-1. Results: After a successful qualification and a pre-launch TB/TV test program, the flight instrument is now in-orbit and completed successfully the commissioning and performance verification phase. The in-orbit performance of the receivers matches the pre-launch sensitivities. We also report on the in-orbit performance of the receivers and some first results of HIFI's operations. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.< Réduire

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instrumentation: spectrographs

methods: observational

infrared: general

submillimeter: general

techniques: spectroscopic

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

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