3 papers
astro-ph.GA2026
Isolated or Dynamical? Tracing Black Hole Binary Formation through the Population of Gravitational-Wave Sources
Manuel Arca Sedda, Lavinia Paiella, Cristiano Ugolini +5
The population of binary black hole (BBH) mergers observed by the LIGO-Virgo-KAGRA (LVK) collaboration offers a window into the cosmic evolution of compact binaries and their forma…
astro-ph.HE2025
Optically thick winds of very massive stars suppress intermediate-mass black hole formation
Stefano Torniamenti, Michela Mapelli, Lumen Boco +3
Intermediate-mass black holes (IMBHs) are the link between stellar-mass and supermassive black holes. Gravitational waves have started unveiling a population of IMBHs in the $\sim…
astro-ph.HE2025
Impact of stellar winds on the pair-instability supernova rate
Filippo Simonato, Stefano Torniamenti, Michela Mapelli +4
Very massive stars (VMSs, 100 M) play a crucial role in several astrophysical processes. At low metallicity, they might collapse directly into black ho…