31. In 1902, William Wallace Campbell reported that ? Geminorum showed radial velocity variations. 32. After follow-up observations using radial velocity , the planet was confirmed. 33. Both groups detected this planet using the radial velocity method. 34. Observations at Yerkes Observatory had measured its radial velocity as 62 km / s. 35. Like most planet candidates so far, it was detected with the radial velocity method. 36. SOPHIE uses radial velocity measurements to examine stars for exoplanets. 37. Since radial velocity can be measured with a spectrometer by observing the resolving power. 38. In 1997, an extrasolar planet was announced on the basis of radial velocity measurements. 39. Radial velocity measurements indicated gravitational perturbations of the star being caused by orbiting objects.40. His primary research interest is studying radial velocity and transit techniques in extrasolar planets.
