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Proc Natl Acad Sci U S A. 2012 May 22;109(21):7982-7. doi: 10.1073/pnas.1120970109. Epub 2012 May 7.

Kepler constraints on planets near hot Jupiters.

Author information

1
Fermilab Center for Particle Astrophysics, P.O. Box 500, Batavia, IL 60510, USA. ffen@fnal.gov

Abstract

We present the results of a search for planetary companions orbiting near hot Jupiter planet candidates (Jupiter-size candidates with orbital periods near 3 d) identified in the Kepler data through its sixth quarter of science operations. Special emphasis is given to companions between the 21 interior and exterior mean-motion resonances. A photometric transit search excludes companions with sizes ranging from roughly two-thirds to five times the size of the Earth, depending upon the noise properties of the target star. A search for dynamically induced deviations from a constant period (transit timing variations) also shows no significant signals. In contrast, comparison studies of warm Jupiters (with slightly larger orbits) and hot Neptune-size candidates do exhibit signatures of additional companions with these same tests. These differences between hot Jupiters and other planetary systems denote a distinctly different formation or dynamical history.

PMID:
22566651
PMCID:
PMC3361435
DOI:
10.1073/pnas.1120970109
[Indexed for MEDLINE]
Free PMC Article

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