131 citations · 405 across the 10 of their papers we have counts for
10 papers
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…
A maximum entropy approach to detect close-in giant planets around active stars
P. Petit, J. -F. Donati, E. Hébrard +11
(shortened for arXiv) We aim to progress towards more efficient exoplanet detection around active stars by optimizing the use of Doppler Imaging in radial velocity measurements. We…
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…
How non-magnetic are "non-magnetic" Herbig Ae/Be stars?
G. A. Wade, E. Alecian, C. Catala +9
Our recent discovery of magnetic fields in a small number of Herbig Ae/Be stars has required that we survey a much larger sample of stars. From our FORS1 and ESPaDOnS surveys, we h…
Line profile variations in Doradus
L. A. Balona, T. Böhm, B. H. Foing +11
We present data from high-dispersion echelle spectra and simultaneous photometry for ~Doradus. These data were obtained from several sites during 1994 November as part of…