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A detailed spectroscopic analysis of the open cluster NGC 5460
L. Fossati, C. P. Folsom, S. Bagnulo +5
Within the context of a large project aimed at studying early F-, A- and late B-type stars we present the abundance analysis of the photospheres of 21 members of the open cluster N…
Tau Sco: discovery of the clones
V. Petit, D. L. Massa, W. L. F. Marcolino +3
The B0.2 V magnetic star tau Sco stands out from the larger population of massive magnetic OB stars due to its high X-ray activity and remarkable wind, apparently related to its pe…
tau Sco: The discovery of the clones
V. Petit, D. L. Massa, W. L. F. Marcolino +3
The B0.2 V magnetic star tau Sco stands out from the larger population of massive magnetic OB stars due to its remarkable, superionized wind, apparently related to its peculiar mag…
Is the Wind of the Galactic Oe Star HD 155806 Magnetically Confined?
A. W. Fullerton, V. Petit, S. Bagnulo +2
Spectropolarimetric observations of HD 155806 - the hottest Galactic Oe star - were obtained with CFHT/ESPaDOnS to test the hypothesis that disk signatures in its spectrum are due…
Modeling the Magnetosphere of the B2Vp star sigma Ori E
M. E. Oksala, G. A. Wade, R. H. D Townsend +2
This paper presents results obtained from Stokes I and V spectra of the B2Vp star sigma Ori E, observed by both the Narval and ESPaDOnS spectropolarimeters. Using Least- Squares De…
The constant magnetic field of xi 1 CMa: geometry or slow rotation?
C. Fourtune-Ravard, G. A. Wade, W. Marcolino +4
We report recent observations of the sharp-lined magnetic beta Cep pulsator xi 1 CMa (= HD 46328). The longitudinal magnetic field of this star is detected consistently, but it is…