Bayesian Extrasolar Planet Detection

Details Bayesian Extrasolar Planet Detection Bayesian Extrasolar Planet Detection

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.1105g&link_type=abstract

American Astronomical Society Meeting 205, #11.05; Bulletin of the American Astronomical Society, Vol. 36, p.1352

Astronomy and Astrophysics

Astronomy

Scientific paper

Precision radial velocity data for HD 73526 has been re-analyzed using a new Bayesian parallel tempering Markov Chain Monte Carlo algorithm. For a single planet model three possible orbits are found with periods of 376, 128, and 190 days with probabilities of 0.88, 0.09, 0.03, respectively. The most probable orbit has a period of 376.0-3.3+2.3 days and an eccentricity of 0.10-0.10+0.04 and yields an M sin i = 5.32 -1.3+1.5. The previously reported orbit (Tinney et al. Ap.J. 587, 423, 2003) of 190.5 ± 3.0 days and eccentricity of 0.34 ± 0.08 corresponds to our least probable orbit.

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