Astronomy and Astrophysics – Astronomy
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21820301l&link_type=abstract
American Astronomical Society, AAS Meeting #218, #203.01; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
The first four months of Kepler data (Borucki et al. 2011) revealed a rich population of systems with multiple transiting planet candidates. The census of multiples includes 115 targets that show 2 candidate planets, 45 with 3, 8 with 4, and 1 each with 5 and 6, for a total of 170 systems with 408 candidates. When compared to the 827 systems with only one candidate, the multiple systems account for 17 percent of the total, and a third of all the planet candidates. We compare the characteristics of candidates found in multiples with those found in singles. False positives due to eclipsing binaries are much less common for the multiples, as expected. Giant planets rarely occur in transiting multiples, in contrast to planets found by radial velocities, where giant planets are more common in multiples. This suggests that systems of small planets are more likely to be flat than ones that include large planets. Singles and multiples are both dominated in number by planets smaller than Neptune; 68 percent for singles and 86 percent for multiples.
Kepler Team
Latham David W.
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