ROBO-AO Kepler planetary candidate survey. III. Adaptive optics imaging of 1629 Kepler exoplanet candidate host stars
Article
Article Title | ROBO-AO Kepler planetary candidate survey. III. Adaptive optics imaging of 1629 Kepler exoplanet candidate host stars |
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ERA Journal ID | 1048 |
Article Category | Article |
Authors | Ziegler, Carl (Author), Law, Nicholas M. (Author), Morton, Tim (Author), Baranec, Christoph (Author), Riddle, Reed (Author), Atkinson, Dani (Author), Baker, Anna (Author), Roberts, Sarah (Author) and Ciardi, David R. (Author) |
Journal Title | The Astronomical Journal |
Journal Citation | 153 (2) |
Article Number | 66 |
Number of Pages | 26 |
Year | 2017 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/1538-3881/153/2/66 |
Web Address (URL) | https://iopscience.iop.org/article/10.3847/1538-3881/153/2/66 |
Abstract | The Robo-AO Kepler Planetary Candidate Survey is observing every Kepler planet candidate host star with laser adaptive optics imaging to search for blended nearby stars, which may be physically associated companions and/or responsible for transit false positives. In this paper, we present the results of our search for stars nearby 1629 Kepler planet candidate hosts. With survey sensitivity to objects as close as ∼0.″15, and magnitude differences Δm , we find 223 stars in the vicinity of 206 target KOIs; 209 of these nearby stars have not been previously imaged in high resolution. We measure an overall nearby-star probability for Kepler planet candidates of at separations between 0.″15 and 4.″0. Particularly interesting KOI systems are discussed, including 26 stars with detected companions that host rocky, habitable zone candidates and five new candidate planet-hosting quadruple star systems. We explore the broad correlations between planetary systems and stellar binarity, using the combined data set of Baranec et al. and this paper. Our previous 2σ result of a low detected nearby star fraction of KOIs hosting close-in giant planets is less apparent in this larger data set. We also find a significant correlation between detected nearby star fraction and KOI number, suggesting possible variation between early and late Kepler data releases. |
Keywords | binaries: close; instrumentation; adaptive optics; methods; data analysis; methods; observational; planets and satellites; |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | For access to this article, please click on the URL link provided. |
Byline Affiliations | University of North Carolina, United States |
Princeton University, United States | |
University of Hawaii, United States | |
California Institute of Technology (Caltech), United States | |
Durham Academy Upper School, United States | |
Juniata College, United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q434q/robo-ao-kepler-planetary-candidate-survey-iii-adaptive-optics-imaging-of-1629-kepler-exoplanet-candidate-host-stars
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