9.8k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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14 papers · 2 filters
Solar wind turbulent spectrum at plasma kinetic scales
Olga Alexandrova, Catherine Lacombe, Andre Mangeney +2
The description of the turbulent spectrum of magnetic fluctuations in the solar wind in the kinetic range of scales is not yet completely established. Here, we perform a statistica…
Attempts to reproduce the rotation profile of the red giant KIC 7341231 observed by Kepler
T. Ceillier, P. Eggenberger, R. A. García +1
Thanks to the asteroseimic study of the red giant star KIC 7341231 observed by Kepler, it has been possible to infer its radial differential rotation profile (Deheuvels et al. 2012…
The new Toulouse-Geneva Stellar Evolution Code including radiative accelerations of heavy elements
S. Theado, G. Alecian, F. LeBlanc +1
Atomic diffusion has been recognized as an important process that has to be considered in any computations of stellar models. In solar-type and cooler stars, this process is domina…
Evolution of the Solar Flare Energetic Electrons in the Inhomogeneous Inner Heliosphere
Hamish A. S. Reid, Eduard P. Kontar
Solar flare accelerated electrons escaping into the interplanetary space and seen as type III solar radio bursts are often detected near the Earth. Using numerical simulations we c…
SPADES: Stellar Parameters Determination Software
Helene Posbic, David Katz, Elisabetta Caffau +4
Context. As increasingly more spectroscopic data are being delivered by medium- and high-resolving power multi-object spectrographs, more automatic stellar parameter determination…
Multisite spectroscopic seismic study of the beta Cep star V2052 Oph: inhibition of mixing by its magnetic field
M. Briquet, C. Neiner, C. Aerts +29
We used extensive ground-based multisite and archival spectroscopy to derive observational constraints for a seismic modelling of the magnetic beta Cep star V2052 Ophiuchi. The lin…
Fundamental properties of the Population II fiducial stars HD 122563 and Gmb 1830 from CHARA interferometric observations
O. L. Creevey, F. Thévenin, T. S. Boyajian +17
We have determined the angular diameters of two metal-poor stars, HD 122563 and Gmb 1830, using CHARA and Palomar Testbed Interferometer observations. For the giant star HD 122563,…
Lithium abundances in extremely metal-poor turn-off stars
L. Sbordone, P. Bonifacio, E. Caffau
We discuss the current status of the sample of Lithium abundances in extremely metal poor (EMP) turn-off (TO) stars collected by our group, and compare it with the available litera…
Herschel images of Fomalhaut. An extrasolar Kuiper Belt at the height of its dynamical activity
B. Acke, M. Min, C. Dominik +33
Fomalhaut is a young, nearby star that is suspected to harbor an infant planetary system, interspersed with one or more belts of dusty debris. We present far-infrared images obtain…
Automation of the filament tracking in the framework of the HELIO project
Xavier Bonnin, Jean Aboudarham, Nicolas Fuller +2
We present a new method to automatically track filaments over the solar disk. The filaments are first detected on Meudon Spectroheliograph Hα images of the Sun, applying the techni…
Gravito-inertial and pressure modes detected in the B3 IV CoRoT target HD 43317
P. I. Pápics, M. Briquet, A. Baglin +14
Context. OB stars are important building blocks of the Universe, but we have only a limited sample of them well understood enough from an asteroseismological point of view to provi…
The long-period Galactic Cepheid RS Puppis - II. 3D structure and mass of the nebula from VLT/FORS polarimetry
P. Kervella, A. Mérand, L. Szabados +7
The long-period Cepheid RS Pup is surrounded by a large dusty nebula reflecting the light from the central star. Due to the changing luminosity of the central source, light echoes…
Pulsation spectrum of Delta Sct stars: the binary HD 50870 as seen with CoRoT and HARPS
L. Mantegazza, E. Poretti, E. Michel +14
We present the results obtained with the CoRoT satellite for HD 50870, a Delta Sct star which was observed for 114.4 d. The 307,570 CoRoT datapoints were analysed with different te…
Asteroseismology of the solar analogs 16 Cyg A & B from Kepler observations
T. S. Metcalfe, W. J. Chaplin, T. Appourchaux +34
The evolved solar-type stars 16 Cyg A & B have long been studied as solar analogs, yielding a glimpse into the future of our own Sun. The orbital period of the binary system is too…