10.9k citations
- Centre National de la Recherche ScientifiqueFR9.6k papers
- Sorbonne UniversitéFR5.6k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR3.8k papers
- CEA Paris-SaclayFR3.3k papers
- Université Paris-SaclayFR3k papers
- Délégation Paris 7FR2.8k papers
- Sorbonne Paris CitéFR2.5k papers
- Université Paris Sciences et LettresFR2.3k papers
- Astrophysique, Instrumentation et ModélisationFR2.2k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.1k papers
- Aix-Marseille UniversitéFR1.9k papers
- Institut de Recherche sur les Lois Fondamentales de l'UniversFR1.8k papers
146 papers · 2 filters
3-D non-linear evolution of a magnetic flux tube in a spherical shell: the isentropic case
L. Jouve, A. S. Brun
We present recent 3-D MHD numerical simulations of the non-linear dynamical evolution of magnetic flux tubes in an adiabatically stratified convection zone in spherical geometry, u…
UVES radial velocity accuracy from asteroid observations. Implications for the fine structure constant variability
P. Molaro, S. A. Levshakov, S. Monai +4
High resolution observations of the asteroids Iris and Juno have been performed by means of the UVES spectrograph at the ESO VLT to obtain the effective accurac y of the spectrogra…
On the role of meridional flows in flux transport dynamo models
L. Jouve, A. S. Brun
The Sun is a magnetic star whose magnetism and cyclic activity is linked to the existence of an internal dynamo. We aim to understand the establishment of the solar magnetic 22-yr…
First Stars XI. Chemical composition of the extremely metal-poor dwarfs in the binary CS 22876--032
J. I. González Hernández, P. Bonifacio, H. -G. Ludwig +15
We have used high-resolution, high-S/N ratio spectra from the UVES spectrograph at the ESO VLT telescope. Long-term radial-velocity measurements and broad-band photometry allow us…
The ground-based solar observations database BASS 2000
F. Paletou, M. Lafon, P. Maeght +3
BASS 2000 is the French solar database for ground-based instruments. We describe hereafter our organization, our tasks and the products we can deliver to the international communit…
Characterisation of the magnetic field of the Herbig Be star HD 200775
E. Alecian, C. Catala, G. A. Wade +9
After our recent discovery of four magnetic Herbig stars, we have decided to study in detail one of them, HD 200775, to determine if its magnetic topology is similar to that of the…