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6 papers · 1 filter
Magnetic coronae of active main-sequence stars
M. Jardine, J. -F. Donati
The coronal structure of main sequence stars continues to puzzle us. While the solar corona is relatively well understood, it has become clear that even stars of the same mass as t…
Rising optical afterglows seen by TAROT
B. Gendre, A. Klotz, G. Stratta +8
We present the multi-wavelength study of those gamma-ray bursts observed by TAROT. These events are characterized by the presence at early time of a rising in their optical light c…
Coronal structure of the cTTS V2129 Oph
M. M. Jardine, S. G. Gregory, J. -F. Donati
The nature of the magnetic coupling between T Tauri stars and their disks determines not only the mass accretion process but possibly the spin evolution of the central star. We hav…
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…
The interplay between ionized gas and massive stars in the HII galaxy IIZw70: integral field spectroscopy with PMAS
C. Kehrig, J. M. Vilchez, S. F. Sanchez +3
We performed an integral field spectroscopic study for the HII galaxy IIZw70 in order to investigate the interplay between its ionized interstellar medium (ISM) and the massive sta…
Spatial distribution of interstellar gas in the innermost 3 kpc of our Galaxy
Katia Ferriere, William Gillard, Pierre Jean
We review the present observational knowledge on the spatial distribution and the physical state of the different (molecular, atomic and ionized) components of the interstellar gas…