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Proceedings Paper

Performance verification of HARPS: first laboratory results
Author(s): Francesco Pepe; Gero Rupprecht; Gerardo Avila; Andrea Balestra; Francois Bouchy; Cyril Cavadore; Wolfgang Eckert; Michel Fleury; Alain Gillotte; Domingo Gojak; Juan Carlos Guzman; Dominique Kohler; Jean-Luis Lizon; Michel Mayor; Denis Megevand; Didier Queloz; Danuta Sosnowska; Stephane Udry; Ueli Weilenmann
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Paper Abstract

The high-resolution spectrograph HARPS (High-Accuracy Radial-velocity Planet Searcher) will be installed on the 3.6m telescope at the ESO La Silla Observatory towards the end of 2002 and offered to the astronomical community by mid-2003. Assembly and integration of the instrument took place at the Geneva Observatory, Switzerland, during Spring 2002. At present, the verification of the system performance is in progress and is already in an advanced phase. We present in this paper the first results of our laboratory tests and describe various performance figures. We stress the outstanding mechanical and thermal stability of the instrument which are crucial for accurate radial velocity measurements. We also give a description of the simultaneous ThAr-reference technique which ensures an overall efficiency 6 times higher than with an the iodine cell absorption method. The combination of the high instrumental stability with the simultaneous ThAr-reference technique provides HARPS with characteristics highly adapted for accurate radial-velocity determination at the level of 1 ms-1. These make our instrument suitable for the detection of planetary systems and of extra-solar planets with sub-saturnian mass.

Paper Details

Date Published: 7 March 2003
PDF: 12 pages
Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); doi: 10.1117/12.460777
Show Author Affiliations
Francesco Pepe, Observatoire de Geneve (Switzerland)
Gero Rupprecht, European Southern Observatory (Germany)
Gerardo Avila, European Southern Observatory (Germany)
Andrea Balestra, European Southern Observatory (Germany)
Francois Bouchy, Observatoire de Geneve (Switzerland)
Cyril Cavadore, European Southern Observatory (Germany)
Wolfgang Eckert, European Southern Observatory (Chile)
Michel Fleury, Observatoire de Geneve (Switzerland)
Alain Gillotte, European Southern Observatory (Chile)
Domingo Gojak, European Southern Observatory (Chile)
Juan Carlos Guzman, European Southern Observatory (Chile)
Dominique Kohler, Observatoire de Haute-Provence (France)
Jean-Luis Lizon, European Southern Observatory (Germany)
Michel Mayor, Observatoire de Geneva (Switzerland)
Denis Megevand, Observatoire de Geneve (Switzerland)
Didier Queloz, Observatoire de Geneve (Switzerland)
Danuta Sosnowska, Observatoire de Geneve (Switzerland)
Stephane Udry, Observatoire de Geneve (Switzerland)
Ueli Weilenmann, European Southern Observatory (Chile)

Published in SPIE Proceedings Vol. 4841:
Instrument Design and Performance for Optical/Infrared Ground-based Telescopes
Masanori Iye; Alan F. M. Moorwood, Editor(s)

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