Transit Detection of Radial Velocity Planets

Details Transit Detection of Radial Velocity Planets Transit Detection of Radial Velocity Planets

2008-06-30

arxiv.org/abs/0807.0006v1

Astronomy and Astrophysics

Astrophysics

To appear in the Proceedings of the 253rd IAU Symposium: "Transiting Planets", May 2008, Cambridge, MA. 4 pages, 4 figures

Scientific paper

10.1017/S1743921308026641

The orbital parameters of extra-solar planets have a significant impact on the probability that the planet will transit the host star. This was recently demonstrated by the transit detection of HD 17156b whose favourable eccentricity and argument of periastron dramatically increased its transit likelihood. We present a study which provides a quantitative analysis of how these two orbital parameters effect the geometric transit probability as a function of period. Further, we apply these results to known radial velocity planets and show that there are unexpectedly high transit probabilities for planets at relatively long periods. For a photometric monitoring campaign which aims to determine if the planet indeed transits, we calculate the significance of a null result and the subsequent constraints that may be applied to orbital parameters.

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