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A First Comparison of Kepler Planet Candidates in Single and Multiple Systems

Latham, David W. and Ciardi, David R. (2011) A First Comparison of Kepler Planet Candidates in Single and Multiple Systems. Astrophysical Journal Letters, 732 (2). Art. No. L24. ISSN 2041-8205.

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In this Letter, we present an overview of the rich population of systems with multiple candidate transiting planets found in the first four months of Kepler data. The census of multiples includes 115 targets that show two candidate planets, 45 with three, eight with four, and one each with five and six, for a total of 170 systems with 408 candidates. When compared to the 827 systems with only one candidate, the multiples account for 17% of the total number of systems, and one-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. Singles and multiples are both dominated by planets smaller than Neptune; 69^(+2)_(–3)% for singles and 86^(+2)_(–5)% for multiples. This result, that systems with multiple transiting planets are less likely to include a transiting giant planet, suggests that close-in giant planets tend to disrupt the orbital inclinations of small planets in flat systems, or maybe even prevent the formation of such systems in the first place.

Item Type:Article
Related URLs:
URLURL TypeDescription
Latham, David W.0000-0001-9911-7388
Ciardi, David R.0000-0002-5741-3047
Additional Information:© 2011 American Astronomical Society. Received 2011 March 9; accepted 2011 March 21; published 2011 April 15. We thank the entire Kepler team for all the hard work that has made these results possible. Funding for this Discovery Mission is provided by NASA’s Science Mission Directorate. We give special thanks to the anonymous referee for insightful and timely feedback. Facility: Kepler
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Subject Keywords:planetary systems
Issue or Number:2
Classification Code:PACS: 96.10.+i ; 95.10.Gi; 95.10.Eg
Record Number:CaltechAUTHORS:20110823-142840298
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Official Citation:A First Comparison of Kepler Planet Candidates in Single and Multiple Systems David W. Latham et al. 2011 ApJ 732 L24
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:24998
Deposited By: Jason Perez
Deposited On:24 Aug 2011 17:57
Last Modified:03 Oct 2019 03:01

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