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6 papers · 1 filter
Accurate p-mode measurements of the G0V metal-rich CoRoT target HD 52265
J. Ballot, L. Gizon, R. Samadi +27
The star HD 52265 is a G0V metal-rich exoplanet-host star observed in the seismology field of the CoRoT space telescope from November 2008 to March 2009. The satellite collected 11…
Solar-like oscillations with low amplitude in the CoRoT target HD 181906
R. A. Garcia, C. Regulo, R. Samadi +23
Context: The F8 star HD 181906 (effective temperature ~6300K) was observed for 156 days by the CoRoT satellite during the first long run in the centre direction. Analysis of the da…
Solar-like oscillations in a massive star
K. Belkacem, R. Samadi, M. -J. Goupil +15
Seismology of stars provides insight into the physical mechanisms taking place in their interior, with modes of oscillation probing different layers. Low-amplitude acoustic oscilla…
HD 50844: the new look of Delta Sct stars from CoRoT space photometry
E. Poretti, E. Michel, R. Garrido +21
It has also been suggested that the detection of a wealth of very low amplitude modes in Delta Sct stars was only a matter of signal--to--noise ratio. Access to this treasure, impo…
Radius determination of solar-type stars using asteroseismology: What to expect from the Kepler mission
D. Stello, W. J. Chaplin, H. Bruntt +22
For distant stars, as observed by the NASA Kepler satellite, parallax information is currently of fairly low quality and is not complete. This limits the precision with which the a…
Turbulence in the sub-Alfvénic solar wind driven by reflection of low-frequency Alfvén waves
A. Verdini, M. Velli, E. Buchlin
We study the formation and evolution of a turbulent spectrum of Alfvén waves driven by reflection off the solar wind density gradients, starting from the coronal base up to 17 sola…