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54 papers · 1 filter
Magnetic topology and surface differential rotation on the K1 subgiant of the RS CVn system HR 1099
P. Petit, J. -F. Donati, G. A. Wade +8
We present here spectropolarimetric observations of the RS CVn system HR 1099 (V711 Tau) secured from 1998 February to 2002 January with the spectropolarimeter MuSiCoS at the Teles…
Local models of stellar convection: Reynolds stresses and turbulent heat transport
P. J. Käpylä, M. J. Korpi, I. Tuominen
We study stellar convection using a local three-dimensional MHD model, with which we investigate the influence of rotation and large-scale magnetic fields on the turbulent momentum…
Spectral analysis of 50 GRBs detected by HETE-2
C. Barraud, the HETE-2 team
FREGATE, the gamma-ray detector of HETE-2 is entirely dedicated to the study of GRBs. Its main characteristic is its broad energy range, from 7 keV to 400 keV. This energy range ca…
Early results from the VIMOS VLT Deep Survey
O. Le Fèvre, G. Vettolani, D. Maccagni +40
The VIMOS VLT Deep Survey (VVDS) is underway to study the evolution of galaxies, large scale structures and AGNs, from the measurement of more than 100000 spectra of faint objects.…
Observations of the pulsating subdwarf B star Feige 48: Constraints on evolution and companions
M. D. Reed, S. D. Kawaler
Since pulsating subdwarf B (sdBV or EC14026) stars were first discovered (Kilkenny et al, 1997), observational efforts have tried to realize their potential for constraining the in…
The XMM--NEWTON Omega Project: II.Cosmological implications from the high redshift L-T relation of X-ray clusters
S. C. Vauclair, A. Blanchard, R. Sadat +7
The evolution with redshift of the temperature-luminosity relation of X-ray galaxy clusters is a key ingredient to break degeneracies in the interpretation of X-ray clusters redshi…