A 230 GHz heterodyne receiver array for the IRAM 30 m telescope

Free access article

Issue		A&A Volume 423, Number 3, September I 2004


Page(s)		1171 - 1177
Section		Instruments, observational techniques, and data processing
DOI		http://dx.doi.org/10.1051/0004-6361:20034179

A&A 423, 1171-1177 (2004)
DOI: 10.1051/0004-6361:20034179

A 230 GHz heterodyne receiver array for the IRAM 30 m telescope

K.-F. Schuster¹, C. Boucher¹, W. Brunswig¹, M. Carter¹, J.-Y. Chenu¹, B. Foullieux^{1, 2}, A. Greve¹, D. John¹, B. Lazareff¹, S. Navarro¹, A. Perrigouard¹, J.-L. Pollet¹, A. Sievers¹, C. Thum¹ and H. Wiesemeyer¹

¹ IRAM, Institut de Radio-Astronomie Millimétrique, 300 rue de la Piscine, 38406 St Martin d'Hères, France
e-mail: schuster@iram.fr
² LAOG, Laboratoire d'Astrophysique de l'Observatoire de Grenoble, 414 rue de la Piscine, 38406 St Martin d'Hères, France

(Received 11 August 2003 / Accepted 11 May 2004 )

Abstract
We describe the technical concept, properties, and performance of HERA (HEterodyne Receiver Array) at the IRAM 30 m telescope. HERA is a multibeam, waveguide SIS receiver that greatly improves mapping speed in various observing modes and also provides possibilities for new high-sensitivity observing of small sources. Future extensions with a second polarization module will permit spectro-polarimetry. We present some examples of astronomical maps with HERA.

Key words: instrumentation: spectrographs -- techniques: spectroscopic -- radio lines: general

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