Kepler constraints on planets near hot Jupiters

May 2012 • 2012PNAS..109.7982S

Authors • Steffen, J. H. • Ragozzine, D. • Fabrycky, D. C. • Carter, J. A. • Ford, E. B. • Holman, M. J. • Rowe, J. F. • Welsh, W. F. • Borucki, W. J. • Boss, A. P. • Ciardi, D. R. • Quinn, S. N.

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 days) identified in the Kepler data through its sixth quarter of science operations. Special emphasis is given to companions between the 2:1 interior and exterior mean-motion resonances. A photometric transit search excludes companions with sizes ranging from roughly 2/3 to 5 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 or TTVs) 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.

Links

• PDF https://www.pnas.org/content/109/21/7982
• PREPRINT http://arxiv.org/abs/1205.2309
• ELECTR https://doi.org/10.1073%2Fpnas.1120970109
• SPIRES http://inspirehep.net/search?p=find+eprint+arXiv:1205.2309