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Title: Limits on surface gravities of Kepler planet-candidate host stars from non-detection of solar-like oscillations

We present a novel method for estimating lower-limit surface gravities (log g) of Kepler targets whose data do not allow the detection of solar-like oscillations. The method is tested using an ensemble of solar-type stars observed in the context of the Kepler Asteroseismic Science Consortium. We then proceed to estimate lower-limit log g for a cohort of Kepler solar-type planet-candidate host stars with no detected oscillations. Limits on fundamental stellar properties, as provided by this work, are likely to be useful in the characterization of the corresponding candidate planetary systems. Furthermore, an important byproduct of the current work is the confirmation that amplitudes of solar-like oscillations are suppressed in stars with increased levels of surface magnetic activity.
Authors:
; ; ; ; ;  [1] ; ; ; ; ; ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [8] ;  [9] ;  [10] more »;  [11] ; « less
  1. School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT (United Kingdom)
  2. Stellar Astrophysics Centre (SAC), Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C (Denmark)
  3. NASA Ames Research Center, MS 244-30, Moffett Field, CA 94035 (United States)
  4. Astronomical Institute, "Anton Pannekoek," University of Amsterdam, Amsterdam (Netherlands)
  5. Laboratoire AIM, CEA/DSM-CNRS-Université Paris Diderot (France)
  6. (France)
  7. Instituut voor Sterrenkunde, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven (Belgium)
  8. Department of Astronomy, Yale University, New Haven, CT 06520 (United States)
  9. Sydney Institute for Astronomy, School of Physics, University of Sydney, Sydney (Australia)
  10. Center for Exoplanets and Habitable Worlds, The Pennsylvania State University, University Park, PA 16802 (United States)
  11. Department of Physics and Astronomy, Iowa State University, Ames, IA 50011 (United States)
Publication Date:
OSTI Identifier:
22351544
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 783; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; AMPLITUDES; DETECTION; GRAVITATION; OSCILLATIONS; PLANETS; STARS; SURFACES