A Proposed Heterodyne Receiver for the Origins Space Telescope
Journal article, 2018

The HEterodyne Receiver for the Origins Space Telescope (HERO) is a proposed design for a heterodyne focal plane array for a large space mission. The Origins Space Telescope (OST) is one of the four missions selected to be studied by NASA for the 2020 Astronomy and Astrophysics Decadal survey. HERO is designed to observe the trail of water from the interstellar medium (ISM) to disks around protostars. In Concept 1, HERO provides continuous frequency coverage from 468 to 2700 GHz in five bands and a sixth band to cover 4700 GHz. Most bands include 2 × 64 pixels providing at least an order of magnitude higher mapping speeds than available with today's instruments. Receiver sensitivities are expected to be close to the quantum limit. HERO Concept 2, highly constrained by cost and denoted Little-HERO, includes four bands with continuous coverage from 486 to 2700 GHz and with focal plane arrays having only 2 × 9 pixels per band. Both of these THz receiver concepts will be described and the designs will be motivated by the science drivers, the space craft constraints and the latest technological developments. The HERO design builds on the highly successful Herschel/Heterodyne Instrument for the Far-Infrared, on Stratospheric Observatory for Far-Infrared Astronomy/upGREAT and many other heterodyne receivers, but surpasses these in terms of frequency coverage, array size and sensitivity, thanks to the latest technical advances. HERO can be considered an example of a new generation of heterodyne focal plane arrays for future space missions.

heterodyne receivers

heterodyne instruments

far-infrared (far-IR) space instruments

Array receivers

THz astronomy

THz detectors

Author

M.C. Wiedner

LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres

Imran Mehdi

Jet Propulsion Laboratory, California Institute of Technology

A. M. Baryshev

University of Groningen

Victor Belitsky

Chalmers, Space, Earth and Environment, Onsala Space Observatory, GARD Technology

Vincent Desmaris

Chalmers, Space, Earth and Environment, Onsala Space Observatory, GARD Technology

Anna Maria Digiorgio

Istituto nazionale di astrofisica (INAF)

J. D. Gallego

Centro Astronomico de Yebes

M. Gerin

LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres

P. F. Goldsmith

Jet Propulsion Laboratory, California Institute of Technology

F. Helmich

Netherlands Institute for Space Research (SRON)

University of Groningen

W. Jellema

University of Groningen

Netherlands Institute for Space Research (SRON)

Andre Laurens

CNES Centre National d'Etudes Spatiales

Christophe Risacher

Max Planck Institute

Institut de RadioAstronomie Millimetrique (IRAM)

A. Cooray

University of California at Irvine

Margaret Meixner

NASA Goddard Space Flight Center

Space Telescope Science Institute (STScI)

Johns Hopkins University

IEEE Transactions on Terahertz Science and Technology

2156-342X (ISSN)

Vol. 8 6 558-571 8491320

Subject Categories

Aerospace Engineering

Infrastructure

Onsala Space Observatory

DOI

10.1109/TTHZ.2018.2876093

More information

Latest update

4/4/2019 1