232 citations · 579 across the 11 of their papers we have counts for
11 papers
Spot distribution and fast surface evolution on Vega
P. Petit, E. M. Hébrard, T. Böhm +2
Spectral signatures of surface spots were recently discovered from high cadence observations of the A star Vega. We aim at constraining the surface distribution of these photospher…
The MiMeS Survey of Magnetism in Massive Stars: Introduction and overview
G. A. Wade, C. Neiner, E. Alecian +47
The MiMeS project is a large-scale, high resolution, sensitive spectropolarimetric investigation of the magnetic properties of O and early B type stars. Initiated in 2008 and compl…
Ultra weak magnetic fields in Am stars: Beta UMa and theta Leo
Aurore Blazère, Pascal Petit, François Lignières +3
An extremely weak circularly-polarized signature was recently discovered in spectral lines of the chemically peculiar Am star Sirius A (Petit et al. 2011). This signal was interpre…
The dichotomy between strong and ultra-weak magnetic fields among intermediate-mass stars
F. Lignières, P. Petit, M. Aurière +2
Until recently, the detection of magnetic fields at the surface of intermediate-mass main-sequence stars has been limited to Ap/Bp stars, a class of chemically peculiar stars. This…
Instrumental Methods for Professional and Amateur Collaborations in Planetary Astronomy
O. Mousis, R. Hueso, J. -P. Beaulieu +57
Amateur contributions to professional publications have increased exponentially over the last decades in the field of Planetary Astronomy. Here we review the different domains of t…
Long-term magnetic field stability of Vega
D. Alina, P. Petit, F. Lignières +5
We present new spectropolarimetric observations of the normal A-type star Vega, obtained during the summer of 2010 with NARVAL at Télescope Bernard Lyot (Pic du Midi Observatory).…