Detecting Circumbinary Planets Using Eclipse Timing of Binary Stars - From Simulations to Observations

Details Detecting Circumbinary Planets Using Eclipse Timing of Binary Stars - From Simulations to Observations Detecting Circumbinary Planets Using Eclipse Timing of Binary Stars - From Simulations to Observations

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21642503s&link_type=abstract

American Astronomical Society, AAS Meeting #216, #425.03; Bulletin of the American Astronomical Society, Vol. 41, p.838

Astronomy and Astrophysics

Astronomy

Scientific paper

The Light-Time Effect (LTE) occurs whenever the distance between the observer and any kind of periodic signal occurring in space changes. The usual cause of this is the reflex motion about the system's barycenter due
to the gravitational influence of one or more additional bodies. With a sufficient precision of the times of eclipses, the eclipse timing can be used to detect substellar or even planetary mass companions.
The main goal of the poster is to investigate the potential of the photometry based eclipse timing of binary stars as a method of detecting circumbinary planets. In the models we assume that the companion orbits a binary star
in a circular Keplerian orbit. We analyze throug the numerical simulations both the space and ground based photometry cases. In particular, we study the usefulness of the on-going COROT and Kepler missions in detecting circumbinary planets.
We determine the sensitivity of the eclipse timing technique to circumbinary planets for the ground and space based photometric observations. We provide suggestions for the best targets, observing strategies and instruments for the eclipse timing method. Finally, we present some preliminary results comparing simulations and real observations.

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