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Published September 2009 | Published
Journal Article Open

Systemic: A Testbed for Characterizing the Detection of Extrasolar Planets. I. The Systemic Console Package

Abstract

We present the Systemic Console, a new all-in-one, general-purpose software package for the analysis and combined multiparameter fitting of Doppler radial velocity (RV) and transit timing observations. We give an overview of the computational algorithms implemented in the console, and describe the tools offered for streamlining the characterization of planetary systems. We illustrate the capabilities of the package by analyzing an updated radial velocity data set for the HD 128311 planetary system. HD 128311 harbors a pair of planets that appear to be participating in a 2:1 mean motion resonance. We show that the dynamical configuration cannot be fully determined from the current data. We find that if a planetary system like HD 128311 is found to undergo transits, then self-consistent Newtonian fits to combined radial velocity data and a small number of timing measurements of transit midpoints can provide an immediate and vastly improved characterization of the planet's dynamical state.

Additional Information

© 2009 Astronomical Society of the Pacific. Received 2009 May 30; accepted 2009 July 9; published 2009 August 18. We would like to thank the participants in the systemic project for contributing a large amount of research effort toward the characterization of extrasolar planets. The results reported in this article would not have been possible without their dedicated participation. We are grateful to Debra Fischer, Eric Ford, Man Hoi Lee, Doug Lin, and Peter Jalowiczor for useful discussions, and the anonymous referee for a very thorough evaluation of the paper and several valuable suggestions. This research has been supported by the NSF through CAREER Grant AST-0449986, and by the NASA Astrobiology Institute through Grant NNG04GK19G. The Console software package may be downloaded for free at http://www.oklo.org.

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