activity
20172026
most citedThe Galactic WC and WO stars: The impact of revised distances from Gaia DR2 and their role as massive black hole progenitors

127 citations · 1.1k across the 46 of their papers we have counts for

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Showing astro-ph.HEShow all

2 papers · 1 filter

astro-ph.HE2024★ 4 cited

Multi-wavelength spectroscopic analysis of the ULX Holmberg II X-1 and its nebula suggests the presence of a heavy black hole accreting from a B-type donor

S. Reyero Serantes, L. Oskinova, W. -R. Hamann +11

Ultra-luminous X-ray sources (ULXs) are high-mass X-ray binaries with an X-ray luminosity above erg s. These ULXs can be powered by black holes that are more massi…

astro-ph.HE2022★ 22 cited

Phase-resolved spectroscopic analysis of the eclipsing black hole X-ray binary M33 X-7: System properties, accretion, and evolution

V. Ramachandran, L. M. Oskinova, W. -R. Hamann +10

M33 X-7 is the only known eclipsing black hole high mass X-ray binary. The system is reported to contain a very massive O supergiant donor and a massive black hole in a short orbit…