328 citations · 3.2k across the 59 of their papers we have counts for
5 papers · 1 filter
PoWR grids of non-LTE model atmospheres for OB-type stars of various metallicities
R. Hainich, V. Ramachandran, T. Shenar +5
The study of massive stars in different metallicity environments is a central topic of current stellar research. The spectral analysis of massive stars requires adequate model atmo…
The extreme O-type spectroscopic binary HD 93129A
D. Gruner, R. Hainich, A. A. C. Sander +6
HD 93129A was classified as the earliest O-type star in the Galaxy (O2~If*) and is considered as the prototype of its spectral class. However, interferometry shows that this object…
Low-metallicity massive single stars with rotation. II. Predicting spectra and spectral classes of chemically-homogeneously evolving stars
B. Kubátová, D. Szécsi, A. A. C. Sander +7
Context. Metal-poor massive stars are supposed to be progenitors of certain supernovae, gamma-ray bursts and compact object mergers, potentially contributing to the early epochs of…
The Galactic WC and WO stars: The impact of revised distances from Gaia DR2 and their role as massive black hole progenitors
Andreas A. C. Sander, Wolf-Rainer Hamann, Helge Todt +4
Wolf-Rayet stars of the carbon sequence (WC stars) are an important cornerstone in the late evolution of massive stars before their core collapse. As core-helium burning, hydrogen-…
The Shortest-period Wolf-Rayet binary in the Small Magellanic Cloud: Part of a high-order multiple system
T. Shenar, R. Hainich, H. Todt +8
SMC AB 6 is the shortest-period (6.5d) Wolf-Rayet (WR) binary in the Small Magellanic Cloud, and is therefore crucial for the study of binary interaction and formation of WR stars…