Haute-Provence Observatory
CoRoT-1b was identified as the best planetary candidate from the CoRoT spacecraft initial run from February 6 to April 2, 2007. Follow-up photometry with the Wise Observatorys 1.0 m telescope and at the Canada–France–Hawaii Telescope eliminated many of the possible false positives for the transit signal. 9 radial velocity measurements of CoRoT-1 were made at Haute-Provence Observatory in March–April and October 2007 with the SOPHIE échelle spectrograph. The radial velocity data matched the CoRoT light curve and supported the planetary nature of CoRoT-1b and eliminated other possibilities such as background stars, grazing eclipsing binaries, or a triple system.