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astro-ph.SR2024
Instabilities in the Yellow Hypergiant domain
Wolfgang Glatzel, Michaela Kraus
Yellow Hypergiants (YHGs) are massive stars that are commonly interpreted to be in a post-red supergiant evolutionary state. These objects can undergo outbursts on timescales of de…
astro-ph.SR2024
Rings, shells, and arc structures around B[e] supergiants: I. Classical tools of non-linear hydrodynamics
Dieter H. Nickeler, Michaela Kraus
Structures in circumstellar matter reflect both fast processes and quasi-equilibrium states. A geometrical diversity of emitting circumstellar matter is observed around evolved mas…