In July 2008, astronomers (Michael Endl and Martin Kürster) analyzed used seven years of
differential radial velocity measurements for Proxima Centauri to submit a paper indicating that large planets are unlikely to be orbiting Sol's closest stellar neighbor within its habitable zone — around 0.022 to 0.054 AU with a corresponding orbital period of 3.6 to 13.8 days.
Not exact matches
Our barycentric
radial velocities, derived from observations taken at the KPNO 2.1 meter telescope, differ from... ▽ More We demonstrate the ability to measure precise stellar barycentric
radial velocities with the dispersed fixed - delay interferometer technique using the Exoplanet Tracker (ET), an instrument primarily designed for precision
differential Doppler
velocity measurements using this technique.
In addition to precise
differential velocities, this survey will also yield precise barycentric
radial velocities for many thousands of stars using the data analysis techniques reported here.