131 citations · 405 across the 10 of their papers we have counts for
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Fundamental properties of two rapidly rotating stars: Rasalhague and Alkaid
Axel Lazzarotto, Alain Hui-Bon-Hoa, Torsten Boehm +2
Abridged : The fundamental parameters of rapidly rotating stars are key quantities to understand the impact of rotation on stellar evolution. A few nearby early-type stars offer th…
Spectroscopic detection of Altair's non-radial pulsations
M. Rieutord, P. Petit, D. Reese +4
Context: Rapid rotation is a common feature of early-type stars but which remains a challenge for the models. The understanding of its effect on stellar evolution is however impera…
A decade-long magnetic monitoring of Vega
P. Petit, T. Böhm, C. P. Folsom +2
Aims. The very weak magnetic field detected at the surface of Vega hints at a widespread population of weakly magnetic stars of A and B spectral types. We contribute here to gather…
Detection of ultra-weak magnetic fields in Am stars: beta UMa and theta Leo
A. Blazère, P. Petit, F. Lignières +9
An extremely weak circularly polarized signature was recently discovered in spectral lines of the chemically peculiar Am star Sirius A. A weak surface magnetic field was proposed t…
First evidence of pulsations in Vega? Results of today's most extensive spectroscopic search
Torsten Böhm, François Lignières, Gregg Wade +5
The impact of rapid rotation on stellar evolution theory remains poorly understood as of today. Vega is a special object in this context as spectroscopic and interferometric studie…
The rapid rotation and complex magnetic field geometry of Vega
P. Petit, F. Lignières, G. A. Wade +9
The recent discovery of a weak surface magnetic field on the normal intermediate-mass star Vega raises the question of the origin of this magnetism in a class of stars that was not…
First evidence of a magnetic field on Vega. Towards a new class of magnetic A-type stars
F. Lignieres, P. Petit, T. Bohm +1
We report the detection of a magnetic field on Vega through spectropolarimetric observations. We acquired 257 Stokes V, high signal-to-noise and high-resolution echelle spectra dur…