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Neutron star mergers are amongst the most promising sources for the joint detection of gravitational waves and electromagnetic signals. They are also potential sites for the production of r-process elements and probes of the equation of…

High Energy Astrophysical Phenomena · Physics 2026-05-29 Samantha Rath , Francois Foucart , Lawrence E. Kidder , Harald P. Pfeiffer , Mark A. Scheel

Observational evidence has continued to mount that a significant fraction of rapidly rotating early-B type stars are products of binary mass transfer. However, very few mid- and late-type B stars with rapid rotation have been demonstrated…

Simulations of binary neutron stars have seen great advances in terms of physical detail and numerical quality. However, the spin of the neutron stars, one of the simplest global parameters of binaries, remains mostly unstudied. We present…

General Relativity and Quantum Cosmology · Physics 2015-04-15 Sebastiano Bernuzzi , Tim Dietrich , Wolfgang Tichy , Bernd Bruegmann

Making the most of the rapidly increasing population of gravitational-wave detections of black hole (BH) and neutron star (NS) mergers requires comparing observations with population synthesis predictions. In this work we investigate the…

Spin can have significant effects on the electromagnetic transients accompanying binary neutron star mergers. The measurement of spin can provide important information about binary formation channels. In the absence of a strong neutron star…

High Energy Astrophysical Phenomena · Physics 2019-12-18 William E. East , Vasileios Paschalidis , Frans Pretorius , Antonios Tsokaros

As the sensitivity of the international gravitational wave detector network increases, observing binary neutron star signals will become more common. Moreover, since these signals will be louder, the chances of detecting them before their…

General Relativity and Quantum Cosmology · Physics 2024-07-16 Wouter van Straalen , Alex Kolmus , Justin Janquart , Chris Van Den Broeck

The low energy fusion cross sections of charged-particle nuclear reactions (and the respective reaction rates) in stellar plasmas are enhanced due to plasma screening effects. We study the impact of those effects on predictive stellar…

Nuclear Theory · Physics 2009-11-11 Theodore Liolios , Theocharis Kosmas

Massive stars play a major role in the evolution of their host galaxies, and serve as important probes of the distant Universe. It has been established that the majority of massive stars reside in close binaries and will interact with their…

Solar and Stellar Astrophysics · Physics 2023-11-06 Pablo Marchant , Julia Bodensteiner

The last decade of observational and theoretical developments in stellar and binary evolution provides an opportunity to incorporate major improvements to the predictions from populations synthesis models. We compute the Galactic merger…

High Energy Astrophysical Phenomena · Physics 2015-06-04 Michal Dominik , Krzysztof Belczynski , Christopher Fryer , Daniel Holz , Emanuele Berti , Tomasz Bulik , Ilya Mandel , Richard O'Shaughnessy

The present paper discusses the main physical effects produced by stellar rotation on presupernovae, as well as observations which confirm these effects and their consequences for presupernova models. Rotation critically influences the mass…

Solar and Stellar Astrophysics · Physics 2018-04-25 Georges Meynet , Andre Maeder

Binary neutron star mergers provide insight into strong-field gravity and the properties of ultra-dense nuclear matter. These events offer the potential to search for signatures of physics beyond the standard model, including dark matter.…

Dynamical binary interactions such as common envelope (CE) evolution or stellar mergers are a critical phase in the formation of a wide variety of binary phenomena, ranging from blue stragglers to type I supernovae (of all flavours, a, b…

Binary neutron star mergers are expected to generate intense magnetic fields that power relativistic and non-relativistic outflows and shape their multimessenger signatures. These fields likely arise from the turbulent amplification of…

High Energy Astrophysical Phenomena · Physics 2026-01-30 Eduardo M. Gutiérrez , David Radice , Jacob Fields , James M. Stone

The first detection of gravitational waves from a merging double neutron star (DNS) binary implies a much higher rate of DNS coalescences in the local Universe than typically estimated on theoretical grounds. The recent study by Chruslinska…

High Energy Astrophysical Phenomena · Physics 2020-02-19 Martyna Chruslinska

Oscillations of neutrino emerging from a supernova core are studied. In this extremely high density region neutrino self interactions induce collective flavor transitions. When collective transitions are decoupled from matter oscillations,…

High Energy Physics - Phenomenology · Physics 2008-05-19 Gianluigi Fogli , Eligio Lisi , Antonio Marrone , Alessandro Mirizzi

The ejecta from binary neutron star mergers, which powers its associated kilonova, can inform us about source properties, merger dynamics, and the dense nuclear matter equation of state. While now in the era of multi-messenger astronomy, we…

High Energy Astrophysical Phenomena · Physics 2025-04-08 Amelia Henkel , Francois Foucart , Selah Melfor , Samaya Nissanke , Alexandra Wernersson , Uddipta Bhardwaj

Recent detections of gravitational waves from mergers of neutron stars (NSs) and black holes (BHs) in the low and high-end mass gap regimes pose a puzzle to standard stellar and binary evolution theory. Mass-gap mergers may originate from…

High Energy Astrophysical Phenomena · Physics 2021-08-09 Adrian S. Hamers , Giacomo Fragione , Patrick Neunteufel , Bence Kocsis

Recent observations of supernovae (SNe) have indicated that a fraction of massive stars possess dense circumstellar medium (CSM) at the moment of their core collapses. They suggest the presence of additional activities of the SN progenitor…

Solar and Stellar Astrophysics · Physics 2023-12-22 Tomoki Matsuoka , Ryo Sawada

In dense environments, standard and non-standard neutrino interactions with the background particles trigger a variety of flavor mechanisms, which can impact r-process nucleosynthetic abundances. Future observations of a(n) (extra)galactic…

High Energy Physics - Phenomenology · Physics 2021-11-17 Maria Cristina Volpe

The detailed structure of core-collapse supernova progenitors is crucial for studying supernova explosion engines and the corresponding multimessenger signals. In this paper, we investigate the influence of stellar rotation on binary…

High Energy Astrophysical Phenomena · Physics 2024-01-18 Hao-Sheng Wang , Kuo-Chuan Pan