P. C. Gregory 2005 ApJ 631 1198 doi:10.1086/432594
A Bayesian Analysis of Extrasolar Planet Data for HD 73526
FREEP. C. Gregory1
Show affiliationsA new Bayesian tool for nonlinear model fitting has been developed that employs a parallel tempering Markov chain Monte Carlo algorithm with a novel statistical control system. The algorithm has been used to reanalyze precision radial velocity data for HD 73526. For a single-planet model, three possible orbits were found with periods of 127.88
, 190.4
, and 376.2
days. The 128 day orbit, with an eccentricity of 0.56 ± 0.03, has a maximum value of prior × likelihood that is 16 times larger than for the next highest solution at 376 days. However, the 376 day orbit, with an eccentricity of 0.10
, is formally more probable because for this sparse data set there is a much larger volume of parameter space with a significant probability density in the vicinity of the 376 day peak. The previously reported orbit (Tinney et al. 2003) of 190.5 ± 3.0 days corresponds to our least probable orbit. The analysis highlights the need for measurements around phase 0.5 for the 376 day period.
- Subject headings
methods: data analysis; planetary systems; stars: individual (HD 73526)
- Dates
-
Issue 2 (2005 October 1)
Received 2004 December 22, accepted for publication 2005 June 7
-
A Bayesian Analysis of Extrasolar Planet Data for HD 73526
P. C. Gregory 2005 ApJ 631 1198
-
Chandra Observation of M84, a Radio Lobe Elliptical Galaxy in the Virgo Cluster
A. Finoguenov and C. Jones 2001 ApJ 547 L107
-
A bio-optical algorithm for the remote estimation of the chlorophyll-a concentration in case 2 waters
Anatoly A Gitelson et al 2009 Environ. Res. Lett. 4 045003
-
Characteristic evolutions in numerical relativity using six angular patches
Christian Reisswig et al 2007 Class. Quantum Grav. 24 S327
-
First Evidence for Spectral State Transitions in the ESO 243-49 Hyperluminous X-Ray Source HLX-1
O. Godet et al 2009 ApJ 705 L109
-
Single-file diffusion of subdiffusive particles
T. Bandyopadhyay 2008 EPL 81 16003
-
Residual Gas Motions in the Intracluster Medium and Bias in Hydrostatic Measurements of Mass Profiles of Clusters
Erwin T. Lau et al. 2009 ApJ 705 1129
-
Summer soil moisture regulated by precipitation frequency in China
Shilong Piao et al 2009 Environ. Res. Lett. 4 044012
-
Vibration-induced non-adiabatic geometric phase and energy uncertainty of fermions in graphene
Shi-Jie Xiong and Ye Xiong 2007 EPL 80 60008
-
Deep brain stimulation, deontology and duty: the moral obligation of non-abandonment at the neural interface
Joseph J Fins, MD, FACP 2009 J. Neural Eng. 6 050201