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A spectroscopic multiplicity survey of Galactic Wolf-Rayet stars. III. The northern late-type nitrogen-rich sample
K. Dsilva, T. Shenar, H. Sana +1
Massive stars are powerful cosmic engines. In the phases immediately preceding core-collapse, massive stars in the Galaxy with may appear as classical…
The initial spin distribution of B-type stars revealed by the split main sequences of young star clusters
Chen Wang, Ben Hastings, Abel Schootemeijer +6
Spectroscopic observations of stars in young open clusters have revealed evidence for a dichotomous distribution of stellar rotational velocities, with 10-30% of stars rotating slo…
Detection of single-degenerate massive binaries with Gaia: The impact of blue supergiants, triples, mass precision, and high-precision parallax requirements
S. Janssens, T. Shenar, H. Sana +1
Hundreds of black holes with massive main-sequence companions (OB+BHs) might be identified from Gaia astrometry with the Astrometric Mass-Ratio Function (AMRF). We investigate the…
The Nature of Unseen Companions in Massive Single-Line Spectroscopic Binaries
Hugues Sana, Michael Abdul-Masih, Gareth Banyard +14
Massive stars are predominantly found in binaries and higher order multiples. While the period and eccentricity distributions of OB stars are now well established across different…
A synthetic population of Wolf-Rayet stars in the LMC based on detailed single and binary star evolution models
D. Pauli, N. Langer, D. R. Aguilera-Dena +2
Without doubt, mass transfer in close binary systems contributes to the populations of Wolf-Rayet (WR) stars in the Milky Way and the Magellanic Clouds. However, the binary formati…
Constraining the overcontact phase in massive binary evolution -- II. Period stability of known O+O overcontact systems
Michael Abdul-Masih, Ana Escorza, Athira Menon +2
Given that mergers are often invoked to explain many exotic phenomena in massive star evolution, understanding the evolutionary phase directly preceding a merger, the overcontact p…