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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…
Be Stars Seen by Space Photometry
Thomas Rivinius, Dietrich Baade, Alex C. Carciofi
Classical Be stars are introduced as object class and their particular potential for space based photometry is highlighted. A brief summary of the various types of variability obse…
Short-term variability and mass loss in Be stars II. Physical taxonomy of photometric variability observed by the Kepler spacecraft
Thomas Rivinius, Dietrich Baade, Alex Carciofi
Context: [abbreviated] Aims: Kepler data of three known Be stars are re-visited to establish their pulsational nature and assess the properties of additional, non-pulsational varia…
The Variable Line Width of Achernar
Th. Rivinius, R. H. D. Townsend, D. Baade +3
Spectroscopic observations of Achernar over the past decades, have shown the photospheric line width, as measured by the rotational parameter , to vary in correlation wit…
Luminous blue variables: An imaging perspective on their binarity and near environment
Christophe Martayan, Alex Lobel, Dietrich Baade +18
Context. Luminous blue variables (LBVs) are rare massive stars with very high luminosity. They are characterized by strong photo-metric and spectroscopic variability related to tra…