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Elodie's spectrograph
Copyright : CNRS / OHP

Detection projects with the radial velocity method are numerous. Among them, there are :

  • Elodie : this program is a collaboration between Switzerland and France, carried out with the 193 cm telescope of the Haute-Provence Observatory. It is the extension of the program that led to the discovery of the first exoplanet around a solar-type star in 1995 (51 Pegasi). 19 exoplanets have been discovered with this project. http://www.obs-hp.fr/www/nouvelles/elodie.html
  • Euler-Coralie : The same Swiss-French team runs a similar program at the European Southern Observatory (ESO). 1650 stars are followed with a 1.2 meter telescope. 40 exoplanets have been discovered with this project. http://obswww.unige.ch/~udry/planet/coralie.html .
  • The survey California and Carnegie Planet Search on the 2.4 meter Lick telescope began in 1992. The precision is 3 m/s and the project concerns 120 stars. http://exoplanets.org/
  • The program Anglo-Australian Planets Search follows between 200 and 300 solar-type stars with magnitudes less than 8. The telescope used has a diameter of 3.9 meters. This project led to the discovery of 17 exoplanets. http://www.aao.gov.au/local/www/cgt/planet/aat.html
  • The Advanced Fiber-Optic Echelle American program that uses a 1.5 meter telescope. About 20 telescopes have been discovered with this project. http://cfa-www.harvard.edu/afoe/espd.html
  • A team at the University of Texas has discovered several exoplanets with the Hobby-Eberly Telescope at McDonald Observatory : http://www.as.utexas.edu/astronomy/research/ss.html
  • HARPS : This program uses the 3.6m telescope of the ESO and as a precision of 1m/s. Following 2000 stars, the aim of this project is to detect low-mass planets, long-period planets (like Jupiter), and planets around cool (or metal-deficient) stars. http://obswww.unige.ch/Instruments/harps/Welcome.html