The Herschel-Heterodyne Instrument for the Far-Infrared (HIFI)
Journal article, 2010

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 \times 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.

Methods: observational

Submillimeter: general

Instrumentation: spectrographs

Techniques: spectroscopic

Infrared: general


T. de Graauw

F. P. Helmich

T. G. Phillips

J. Stutzki

E. Caux

N. D. Whyborn

P. Dieleman

P. R. Roelfsema

H. Aarts

R. Assendorp

R. Bachiller

W. Baechtold

A. Barcia

D. A. Beintema

Victor Belitsky

Chalmers, Department of Radio and Space Science, Advanced Receiver Development

A. O. Benz

R. Bieber

A. Boogert

C. Borys

B. Bumble

P. Cais

M. Caris

P. Cerulli-Irelli

Goutam Chattopadhyay

Serguei Cherednichenko

Chalmers, Applied Physics, Physical Electronics

M. Ciechanowicz

O. Coeur-Joly

C. Comito

A. Cros

A. de Jonge

G. de Lange

B. Delforges

Y. Delorme

T. den Boggende

J.-M. Desbat

C. Diez-González

A. M. di Giorgio

L. Dubbeldam

K. Edwards

M. Eggens

N. Erickson

J. Evers

M. Fich

T. Finn

B. Franke

T. Gaier

C. Gal

J. R. Gao

J.-D. Gallego

S. Gauffre

John Gill

S. Glenz

H. Golstein

H. Goulooze

T. Gunsing

R. Güsten

P. Hartogh

W. A. Hatch

R. Higgins

E. C. Honingh

R. Huisman

B. D. Jackson

H. Jacobs

K. Jacobs

C. Jarchow

H. Javadi

W. Jellema

M. Justen

A. Karpov

C. Kasemann

J. Kawamura

G. Keizer

D. Kester

T. M. Klapwijk

T. Klein

Erik Kollberg

Chalmers, Applied Physics, Physical Electronics

J. Kooi

P.-P. Kooiman

B. Kopf

M. Krause

J.-M. Krieg

C. Kramer

B. Kruizenga

T. Kuhn

W. Laauwen

R. Lai

B. Larsson

H. G. Leduc

C. Leinz

Robert Lin

René Liseau

Chalmers, Department of Radio and Space Science, Radio Astronomy and Astrophysics

G. S. Liu

A. Loose

I. López-Fernandez

S. Lord

W. Luinge

A. P. Marston

J. Martin-Pintado

A. Maestrini

F. W. Maiwald

C. McCoey

Imran Mehdi

A. Megej

M. Melchior

L. Meinsma

Harald Franz Arno Merkel

Chalmers, Applied Physics, Physical Electronics

M. Michalska

C. Monstein

D. Moratschke

P. Morris

H. Muller

J. A. Murphy

E. Natale

W. Nowosielski

F. Nuzzolo

Michael Olberg

Chalmers, Earth and Space Sciences, Onsala Space Observatory

M. Olbrich

R. Orfei

P. Orleanski

V. Ossenkopf

T. Peacock

J. C. Pearson

I. Peron

S. Phillip-May

L. Piazzo

P. Planesas

M. Rataj

L. Ravera

C. Risacher

M. Salez

A. Samoska

P. Saraceno

R. Schieder

Erich Schlecht

F. Schlöder

F. Schmülling

M. Schultz

K. Schuster

O. Siebertz

H. Smit

R. Szczerba

R. Shipman

E. Steinmetz

J. A. Stern

M. Stokroos

R. Teipen

D. Teyssier

T. Tils

N. Trappe

C. van Baaren

B.-J. van Leeuwen

H. van de Stadt

H. Visser

K. J. Wildeman

C. K. Wafelbakker

J. S. Ward

P. Wesselius

W. Wild

S. Wulff

H.-J. Wunsch

X. Tielens

P. Zaal

Herbert Zirath

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

J. Zmuidzinas

F. Zwart

Astronomy and Astrophysics

0004-6361 (ISSN) 1432-0746 (eISSN)

Vol. 518 7-8 L6

Subject Categories

Astronomy, Astrophysics and Cosmology


Basic sciences

Areas of Advance

Materials Science



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