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20242026
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astro-ph.HE2026

The impact of stellar binaries and star cluster dynamics on pair-instability supernovae

Francesco Gabrielli, Cristiano Ugolini, Lavinia Paiella +12

Pair-instability supernovae (PISNe) are among the most luminous transients in the Universe. However, they have never been confidently observed. Solving this puzzle would have key i…

astro-ph.HE2025

The more accurately the metal-dependent star formation rate is modeled, the larger the predicted excess of binary black hole mergers

Cecilia Sgalletta, Michela Mapelli, Lumen Boco +5

As the number of gravitational-wave detections grows, the merger rate of binary black holes (BBHs) can help us to constrain their formation, the properties of their progenitors, an…

astro-ph.HE2025

The initial mass-remnant mass relation for core collapse supernovae

C. Ugolini, M. Limongi, R. Schneider +3

The first direct detection of gravitational waves in 2015 marked the beginning of a new era for the study of compact objects. Upcoming detectors, such as the Einstein Telescope, ar…

astro-ph.HE2024

Constraining the Initial-Mass Function via Stellar Transients

Francesco Gabrielli, Lumen Boco, Giancarlo Ghirlanda +4

The stellar initial-mass function (IMF) represents a fundamental quantity in astrophysics and cosmology, describing the mass distribution of stars from low to very-high masses. It…

astro-ph.HE2024

The cosmic rate of Pair-Instability Supernovae

Francesco Gabrielli, Andrea Lapi, Lumen Boco +8

Pair-instability supernovae (PISNe) have crucial implications for many astrophysical topics, including the search for very massive stars, the black hole mass spectrum, and galaxy c…