KELT-3b: A Hot Jupiter Transiting a V = 9.8 Late-F Star
- Creators
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Pepper, Joshua
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Fulton, Benjamin J.
Abstract
We report the discovery of KELT-3b, a moderately inflated transiting hot Jupiter with a mass of 1.477^(+0.066)_(-0.067) M_J, radius of 1.345 ± 0.072 R J, and an orbital period of 2.7033904 ± 0.000010 days. The host star, KELT-3, is a V = 9.8 late F star with M* = 1.278^(+0.063)_(-0.061) M⊙, R* = 1.472^(+0.065)_(-0.067) R⊙, T_(eff) = 6306^(+50)_(-49) K, log(g) = 4.209^(+0.033)_(-0.031), and [Fe/H] = 0.044^(+0.080)_(-0.082), and has a likely proper motion companion. KELT-3b is the third transiting exoplanet discovered by the KELT survey, and is orbiting one of the 20 brightest known transiting planet host stars, making it a promising candidate for detailed characterization studies. Although we infer that KELT-3 is significantly evolved, a preliminary analysis of the stellar and orbital evolution of the system suggests that the planet has likely always received a level of incident flux above the empirically identified threshold for radius inflation suggested by Demory & Seager.
Additional Information
© 2013 The American Astronomical Society. Received 2012 November 1; accepted 2013 May 24; published 2013 July 26. We would like to thank additional collaborators on the KELT project, including Bruce Gary, Joao Gregorio, Roberto Zambelli, and Kim McLeod. We would also like to thank Leslie Hebb, Robert Emrich, and Martin Paegert for helpful discussions. Early work on KELT-North was supported by NASA Grant NNG04GO70G. J.A.P. and K.G.S. acknowledge support from the Vanderbilt Office of the Provost through the Vanderbilt Initiative in Data-intensive Astrophysics. E.L.N.J. gratefully acknowledges the support of the National Science Foundation's PREST program, which helped to establish the Peter van de Kamp Observatory through grant AST-0721386. K.G.S. acknowledges the support of the National Science Foundation through PAARE Grant AST-0849736 and AAG Grant AST-1009810. K.A.C. was supported by a NASA Kentucky Space Grant Consortium Graduate Fellowship. Work by B.S.G., J.D.E., and T.G.B. was partially supported by NSF CAREER Grant AST-1056524. The TRES and KeplerCam observations were obtained with partial support from the Kepler Mission through NASA Cooperative Agreement NNX11AB99A with the Smithsonian Astrophysical Observatory (PI: D.W.L.). The Byrne Observatory at Sedgwick (BOS) is operated by the Las Cumbres Observatory Global Telescope Network and is located at the Sedgwick Reserve, a part of the University of California Natural Reserve System. EXPERT construction and follow-up observations were funded by NSF with grant NSF AST-0705139, NASA with grants NNX07AP14G (Origins), UCF-UF SRI program, and the University of Florida. This work has made use of NASA's Astrophysics Data System, the Exoplanet Orbit Database at exoplanets.org, the Extrasolar Planet Encyclopedia at exoplanet.eu (Schneider et al. 2011), and the SIMBAD database operated at CDS, Strasbourg, France.Attached Files
Published - Pepper_2013_ApJ_773_64.pdf
Accepted Version - 1211.1031.pdf
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Additional details
- Eprint ID
- 88890
- Resolver ID
- CaltechAUTHORS:20180817-075520742
- NASA
- NNG04GO70G
- Vanderbilt Initiative in Data-Intensive Astrophysics (VIDA)
- NSF
- AST-0721386
- NSF
- AST-0849736
- NSF
- AST-1009810
- NASA Kentucky Space Grant Consortium
- NSF
- AST-1056524
- NASA
- NNX11AB99A
- NSF
- AST-0705139
- NASA
- NNX07AP14G
- University of Florida
- Created
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2018-08-17Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field