Publications (8)
Binarity of the LBV HR Car
Th. Rivinius, H. M. J. Boffin, W. J. de Wit +4
VLTI/AMBER and VLTI/PIONIER observations of the LBV HR Car show an interferometric signature that could not possibly be explained by an extended wind, more or less symmetrically di…
BRITEning up the Be Phenomenon
D. Baade, Th. Rivinius, A. Pigulski +13
Observations of 25 Ori much expand the picture derived of other early-type Be stars with BRITE and SMEI. Two instead of one difference frequencies rule the variability: (a) The low…
Pulsations and outbursts in Be stars: Small differences - big impacts
D. Baade, Th. Rivinius, A. Pigulski +12
New high-cadence observations with BRITE covering many months confirm that coupled pairs of nonradial pulsation modes are widespread among early-type Be stars. With the difference…
gamma Cas stars: Normal Be stars with disks impacted by the wind of a helium-star companion?
N. Langer, D. Baade, J. Bodensteiner +4
Cas stars are a 1% minority among classical Be stars with hard but only moderately strong continuous thermal X-ray flux and mostly very early-B spectral type. The X-ray…
Short-term variability and mass loss in Be stars I. BRITE satellite photometry of and Centauri
D. Baade, Th. Rivinius, A. Pigulski +13
Empirical evidence for the involvement of nonradial pulsations (NRP's) in the mass loss from Be stars ranges from (i) a singular case (\object{ Cen}) of repetitive mass ejectio…
Be Stars as Seen Through Telescopes in Survey Mode (II)
Th. Rivinius, Ch. Martayan, D. Baade
The first half of the review dedicated to survey works on Be stars (Baade, Martayan, and Rivinius, this vol.) put emphasis on what we can learn from surveys about Be stars as a par…