612 citations · 25.5k across the 406 of their papers we have counts for
10 papers · 1 filter
Asteroseismic modelling of the subgiant μ Herculis using SONG data: lifting the degeneracy between age and model input parameters
Tanda Li, Timothy R. Bedding, Hans Kjeldsen +3
We model the oscillations of the SONG target Herculis to estimate the parameters of the star. The = 1 mixed modes of Her provide strong constraints on stellar proper…
Period spacings of Doradus pulsators in the Kepler field: detection methods and application to 22 slow rotators
Gang Li, Timothy R. Bedding, Simon J. Murphy +3
In Doradus stars, the g-mode period spacing shows an approximately linear relation with period. The slope is a new asteroseismic diagnostic, related to the rotation rate and th…
Surface gravities for 15,000 Kepler stars measured from stellar granulation and validated with Gaia DR2 parallaxes
Durlabh Pande, Timothy R. Bedding, Daniel Huber +1
We have developed a method to estimate surface gravity (log g) from light curves by measuring the granulation background, similar to the "flicker" method by Bastien et al. (2016) b…
The GALAH Survey and Gaia DR2: (Non)existence of five sparse high-latitude open clusters
Janez Kos, Gayandhi de Silva, Joss Bland-Hawthorn +21
Sparse open clusters can be found at high galactic latitudes where loosely populated clusters are more easily detected against the lower stellar background. Because most star forma…
Predicting radial-velocity jitter induced by stellar oscillations based on Kepler data
Jie Yu, Daniel Huber, Timothy R. Bedding +1
Radial-velocity (RV) jitter due to intrinsic stellar variability introduces challenges when characterizing exoplanet systems, particularly when studying small (sub-Neptune-sized) p…
Surface correction of main sequence solar-like oscillators with the LEGACY sample
D. L. Compton, T. R. Bedding, W. H. Ball +4
Poor modelling of the surface regions of solar-like stars causes a systematic discrepancy between the observed and model pulsation frequencies. We aim to characterise this frequenc…
Interferometric diameters of five evolved intermediate-mass planet-hosting stars measured with PAVO at the CHARA Array
T. R. White, D. Huber, A. W. Mann +8
Debate over the planet occurrence rates around intermediate-mass stars has hinged on the accurate determination of masses of evolved stars, and has been exacerbated by a paucity of…
Asteroseismology of 16000 Kepler Red Giants: Global Oscillation Parameters, Masses, and Radii
Jie Yu, Daniel Huber, Timothy R. Bedding +4
The Kepler mission has provided exquisite data to perform an ensemble asteroseismic analysis on evolved stars. In this work we systematically characterize solar-like oscillations a…
An astrophysical interpretation of the remarkable g-mode frequency groups of the rapidly rotating Dor star, KIC 5608334
H. Saio, T. R. Bedding, D. W. Kurtz +5
The Fourier spectrum of the -Dor variable KIC 5608334 shows remarkable frequency groups at 3, 6, 9, and 11--12\,d. We explain the four frequency groups…
Asteroseismology of KIC 7107778: a binary comprising almost identical subgiants
Yaguang Li, Timothy R. Bedding, Tanda Li +5
We analyze an asteroseismic binary system: KIC 7107778, a non-eclipsing, unresolved target, with solar-like oscillations in both components. We used \emph{Kepler} short cadence tim…