111 citations · 344 across the 6 of their papers we have counts for
6 papers
Investigating the Circumstellar Disk of the Be Shell Star 48 Librae
J. Silaj, C. E. Jones, A. C. Carciofi +6
A global disk oscillation implemented in the viscous decretion disk (VDD) model has been used to reproduce most of the observed properties of the well known Be star Tau. 48 Lib…
2.5D global-disk oscillation models of the Be shell star ζ Tauri I. Spectroscopic and polarimetric analysis
C. Escolano, A. C. Carciofi, A. T. Okazaki +3
Context. Various Be stars exhibit intensity variations of the violet and red emission peaks in their HI lines observed in emission. This so-called phenomenon is usually expla…
Observational effects of magnetism in O stars: surface nitrogen abundances
F. Martins, C. Escolano, G. A. Wade +3
We investigate the surface nitrogen content of the six magnetic O stars known to date as well as of the early B-type star tau Sco. We compare these abundances to predictions of evo…
Detection of a magnetic field on HD108: clues to extreme magnetic braking and the Of?p phenomenon
F. Martins, J. -F. Donati, W. L. F. Marcolino +4
We report the detection of a magnetic field on the Of?p star HD108. Spectropolarimetric observations conducted in 2007, 2008 and 2009 respectively with NARVAL@TBL and ESPaDOnS@CFHT…
Analysis of Galactic late-type O dwarfs: more constraints on the weak wind problem
W. L. F. Marcolino, J. -C. Bouret, F. Martins +3
We have investigated the stellar and wind properties of a sample of five late-type O dwarfs in order to address the weak wind problem. A grid of TLUSTY models was used to obtain th…
The weak magnetic field of the O9.7 supergiant zeta Orionis A
J. -C. Bouret, J. -F. Donati, F. Martins +4
We report here the detection of a weak magnetic field of 50 - 100 G on the O9.7 supergiant zeta Ori A, using spectropolarimetric observations obtained with NARVAL at the 2m Telesco…