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Short-term variability and mass loss in Be stars IV. Two groups of closely spaced, approximately equidistant frequencies in three decades of space photometry of Puppis (B7-8 IIIe)
D. Baade, A. Pigulski, Th. Rivinius +13
In early-type Be stars, groups of nonradial pulsation (NRP) modes with numerically related frequencies may be instrumental for the release of excess angular momentum through mass-e…
The life cycles of Be viscous decretion discs: The case of ω CMa
M. R. Ghoreyshi, A. C. Carciofi, L. R. Rimulo +6
We analyzed V-band photometry of the Be star ω CMa, obtained during the last four decades, during which the star went through four complete cycles of disc formation and dissipation…
Orbital solution leading to an acceptable interpretation for the enigmatic gamma-ray binary HESS J0632+057
Yuki Moritani, Takafumi Kawano, Sho Chimasu +4
High-dispersion spectroscopic monitoring of HESS J0632+057 has been carried out over four orbital cycles in order to search for orbital modulation, covering the entire orbital phas…
The life cycles of Be viscous decretion discs: fundamental disc parameters of 54 SMC Be stars
Leandro Rocha Rímulo, Alex Cavaliéri Carciofi, Rodrigo Georgetti Vieira +7
Be stars are main-sequence massive stars with emission features in their spectrum, which originates in circumstellar gaseous discs. Even though the viscous decretion disc (VDD) mod…