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An asteroseismic membership study of the red giants in three open clusters observed by Kepler: NGC6791, NGC6819, and NGC6811
asteroseismic membership study red giants clusters observed Kepler
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2011/9/29
Studying star clusters offers significant advances in stellar astrophysics due to the combined power of having many stars with essentially the same distance, age, and initial composition. This makes c...
Effects of rotation and magnetic fields on the lithium abundance and asteroseismic properties of exoplanet-host stars
magnetic fields the lithium abundance asteroseismic properties
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2011/1/11
Aims: The effects of rotation and magnetic fields on the surface abundances of solar-type stars are studied in order to investigate whether the reported difference in lithium content of exoplanet-host...
Precise Estimates of the Physical Parameters for the Exoplanet System HD-17156 Enabled by HST FGS Transit and Asteroseismic Observations
stars planetary systems — stars oscillations — stars
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2010/11/9
We present observations of three distinct transits of HD 17156b obtained with the Fine Guidance Sensors (FGS) on board the Hubble Space Telescope (HST)5.
Characterizing Kepler Asteroseismic Targets
space vehicles Kepler – stars abundances – stars fundamental param-eters – stars binaries: spectroscopic
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2010/11/11
Stellar structure and evolution can be studied in great detail by asteroseismic methods, provided data of high precision are available. We determine the effective temperature (Teff), surface gravity (...
A precise asteroseismic age and radius for the evolved Sun-like star KIC 11026764
precise asteroseismic age evolved Sun-like star KIC 11026764
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2011/1/10
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-like planets. The as...
Asteroseismic modelling of the metal-poor star Tau Ceti
Solar and Stellar Astrophysics (astro-ph.SR)
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2011/1/5
Asteroseismology is an effcient tool not only for testing stellar structure and evolutionary theory but also constraining the parameters of stars for which solar-like oscillations are detected, presen...
Asteroseismic Investigation of Known Planet Hosts in the Kepler Field
stars fundamental parameters stars oscillations planetary systems
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2010/3/8
In addition to its great potential for characterizing extra-solar planetary systems the Kepler mission is providing unique data on stellar oscillations. A key aspect of Kepler asteroseismology is the ...
Asteroseismic Theory of Rapidly Oscillating Ap Stars
Stars:variable chemically peculiar roAp magnetic
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2009/5/12
This paper reviews some of the important advances made over
the last decade concerning theory of roAp stars.