LIMITS ON SURFACE GRAVITIES OF KEPLER PLANET-CANDIDATE HOST STARS FROM NON-DETECTION OF SOLAR-LIKE OSCILLATIONS

Campante, TL; Chaplin, WJ; Lund, MN; Huber, D; Hekker, S; Garcia, RA; Corsaro, E; Handberg, R; Miglio, A; Arentoft, T; Basu, S; Bedding, TR; Christensen-Dalsgaard, J; Davies, GR; Elsworth, YP; Gilliland, RL; Karoff, C; Kawaler, SD; Kjeldsen, H; Lundkvist, M; Metcalfe, TS; Aguirre, V Silva; Stello, D

doi:10.1088/0004-637X/783/2/123

LIMITS ON SURFACE GRAVITIES OF KEPLER PLANET-CANDIDATE HOST STARS FROM NON-DETECTION OF SOLAR-LIKE OSCILLATIONS

Author:

Campante, TL

Chaplin, WJ ; Lund, MN ; Huber, D ; Hekker, S ; Garcia, RA ; Corsaro, E ; Handberg, R ; Miglio, A ; Arentoft, T ; Basu, S ; Bedding, TR ; Christensen-Dalsgaard, J ; Davies, GR ; Elsworth, YP ; Gilliland, RL ; Karoff, C ; Kawaler, SD ; Kjeldsen, H ; Lundkvist, M ; Metcalfe, TS ; Aguirre, V Silva ; Stello, D

Keywords:

Science & Technology, Physical Sciences, Astronomy & Astrophysics, methods: statistical, planetary systems, stars: late-type, stars: oscillations, techniques: photometric, SUN-LIKE STAR, RED-GIANT STARS, SCALING RELATIONS, INPUT CATALOG, INITIAL CHARACTERISTICS, FUNDAMENTAL PROPERTIES, HABITABLE ZONE, MAIN-SEQUENCE, CADENCE DATA, ASTEROSEISMOLOGY, astro-ph.SR, astro-ph.EP, 0201 Astronomical and Space Sciences, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, 0306 Physical Chemistry (incl. Structural), 5101 Astronomical sciences, 5107 Particle and high energy physics, 5109 Space sciences

Abstract:

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.