activity
19932026
most citedGravity modes as a way to distinguish between hydrogen- and helium-burning red giant stars

612 citations · 25.5k across the 406 of their papers we have counts for

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Showing 2010Show all

20 papers · 1 filter

astro-ph.SR2010★ 60 cited

Asteroseismic modelling of the solar-type subgiant star Hydri

I. M. Brandão, G. Dogan, J. Christensen-Dalsgaard +6

Comparing models and data of pulsating stars is a powerful way to understand the stellar structure better.βHyi is an evolved solar-type pulsator with mixed modes in its frequency s…

astro-ph.SR2010★ 260 cited

Asteroseismology of red giants from the first four months of Kepler data: Fundamental parameters

T. Kallinger, B. Mosser, S. Hekker +18

Clear power excess in a frequency range typical for solar-type oscillations in red giants has been detected in more than 1000 stars, which have been observed during the first 138 d…

astro-ph.SR2010★ 199 cited

Asteroseismology of red giants from the first four months of Kepler data: Global oscillation parameters for 800 stars

D. Huber, T. R. Bedding, D. Stello +19

We have studied solar-like oscillations in ~800 red-giant stars using Kepler long-cadence photometry. The sample includes stars ranging in evolution from the lower part of the red-…

astro-ph.SR2010★ 163 cited

A precise asteroseismic age and radius for the evolved Sun-like star KIC 11026764

T. S. Metcalfe, M. J. P. F. G. Monteiro, M. J. Thompson +55

The primary science goal of the Kepler Mission is to provide a census of exoplanets in the solar neighborhood, including the identification and characterization of habitable Earth-…

astro-ph.SR2010★ 46 cited

Core properties of alpha Cen A using asteroseismology

P. de Meulenaer, F. Carrier, A. Miglio +5

A set of long and nearly continuous observations of alpha Centauri A should allow us to derive an accurate set of asteroseismic constraints to compare to models, and make inference…

astro-ph.SR2010★ 120 cited

Solar-like oscillations in red giants observed with Kepler: comparison of global oscillation parameters from different methods

S. Hekker, Y. Elsworth, J. De Ridder +20

The large number of stars for which uninterrupted high-precision photometric timeseries data are being collected with \textit{Kepler} and CoRoT initiated the development of automat…

astro-ph.SR2010★ 46 cited

Period-luminosity relations of pulsating M giants in the solar neighbourhood and the Magellanic Clouds

V. Tabur, T. R. Bedding, L. L. Kiss +3

We analyse the results of a 5.5-yr photometric campaign that monitored 247 southern, semi-regular variables with relatively precise Hipparcos parallaxes to demonstrate an unambiguo…

astro-ph.SR2010★ 7 cited

Solar-like oscillations in cluster stars

D. Stello, S. Basu, T. R. Bedding +21

We present a brief overview of the history of attempts to obtain a clear detection of solar-like oscillations in cluster stars, and discuss the results on the first clear detection…

astro-ph.SR2010★ 7 cited

Asteroseismic modelling of Procyon A: Preliminary results

Gülnur Doğan, Alfio Bonanno, Tim R. Bedding +3

We present our preliminary results of the modelling of the F5 star Procyon A. The frequencies predicted by our models are compared with the frequencies extracted through a global f…

astro-ph.IM2010★ 6 cited

A comparison of Bayesian and Fourier methods for frequency determination in asteroseismology

Timothy R. White, Brendon J. Brewer, Timothy R. Bedding +2

Bayesian methods are becoming more widely used in asteroseismic analysis. In particular, they are being used to determine oscillation frequencies, which are also commonly found by…

astro-ph.SR2010★ 14 cited

Asteroseismology of Solar-type stars with Kepler III. Ground-based Data

Joanna Molenda-Zakowicz, Hans Bruntt, Sergio Sousa +15

We report on the ground-based follow-up program of spectroscopic and photometric observations of solar-like asteroseismic targets for the Kepler space mission. These stars constitu…

astro-ph.SR2010★ 9 cited

Asteroseismology of Solar-type Stars with Kepler I: Data Analysis

C. Karoff, W. J. Chaplin, T. Appourchaux +46

We report on the first asteroseismic analysis of solar-type stars observed by Kepler. Observations of three G-type stars, made at one-minute cadence during the first 33.5d of scien…

astro-ph.GA2010★ 104 cited

Halo globular clusters observed with AAOmega: dark matter content, metallicity and tidal heating

Richard R. Lane, László L. Kiss, Geraint F. Lewis +6

Globular clusters have proven to be essential to our understanding of many important astrophysical phenomena. Here we analyse spectroscopic observations of ten Halo globular cluste…

astro-ph.SR2010★ 99 cited

A multi-site campaign to measure solar-like oscillations in Procyon. II. Mode frequencies

T. R. Bedding, H. Kjeldsen, T. L. Campante +47

We have analyzed data from a multi-site campaign to observe oscillations in the F5 star Procyon. The data consist of high-precision velocities that we obtained over more than three…

astro-ph.SR2010★ 231 cited

Accurate fundamental parameters for 23 bright solar-type stars

H. Bruntt, T. R. Bedding, P. -O. Quirion +7

We combine results from interferometry, asteroseismology and spectroscopy to determine accurate fundamental parameters of 23 bright solar-type stars, from spectral type F5 to K2 an…

astro-ph.GA2010★ 16 cited

AAOmega Observations of 47 Tucanae: Evidence for a Past Merger?

Richard R. Lane, Brendon J. Brewer, László L. Kiss +6

The globular cluster 47 Tucanae is well studied but it has many characteristics that are unexplained, including a significant rise in the velocity dispersion profile at large radii…

astro-ph.SR2010★ 44 cited

Scaled oscillation frequencies and echelle diagrams as a tool for comparative asteroseismology

Timothy R. Bedding, Hans Kjeldsen

We describe a method for comparing the frequency spectra of oscillating stars. We focus on solar-like oscillations, in which mode frequencies generally follow a regular pattern. On…

astro-ph.SR2010★ 241 cited

Solar-like oscillations in low-luminosity red giants: first results from Kepler

T. R. Bedding, D. Huber, D. Stello +47

We have measured solar-like oscillations in red giants using time-series photometry from the first 34 days of science operations of the Kepler Mission. The light curves, obtained w…

astro-ph.SR2010★ 154 cited

The asteroseismic potential of Kepler: first results for solar-type stars

W. J. Chaplin, T. Appourchaux, Y. Elsworth +105

We present preliminary asteroseismic results from Kepler on three G-type stars. The observations, made at one-minute cadence during the first 33.5d of science operations, reveal hi…

astro-ph.SR2010★ 83 cited

Discovery of a red giant with solar-like oscillations in an eclipsing binary system from Kepler space-based photometry

S. Hekker, J. Debosscher, D. Huber +26

Oscillating stars in binary systems are among the most interesting stellar laboratories, as these can provide information on the stellar parameters and stellar internal structures.…