The production of about half of the heavy elements found in nature is assigned to a specific
astrophysical nucleosynthesis process: the rapid neutron-capture process (r process) …

70 AIM, UMR 7158, CEA/DRF, CNRS, Université Paris Diderot, Irfu/Service d'Astrophysique,
Centre de Saclay, FR-91191 Gif-sur-Yvette, France

We investigate the long-term evolution of black hole accretion discs formed in neutron star
mergers. These discs expel matter that contributes to an r-process kilonova, and can …

The merger of binary neutron stars, or of a neutron star and a stellar-mass black hole, can
result in the formation of a massive rotating torus around a spinning black hole. In addition to …

The existence of neutron star mergers has been supported since the discovery of the binary
pulsar and the observation of its orbital energy loss, consistent with General Relativity. They …

Probing the origin of r-process elements in the universe represents a multidisciplinary
challenge. We review the observational evidence that probes the properties of r-process …

The rapid neutron capture process (r process) is believed to be responsible for about half of
the production of the elements heavier than iron and contributes to abundances of some …

The detection of the binary neutron star merger GW170817 together with the observation of
electromagnetic counterparts across the entire spectrum inaugurated a new era of …

The 2017 detection of the inspiral and merger of two neutron stars in gravitational waves
and gamma rays was accompanied by a quickly reddening transient. Such a transient was …

Merging binaries consisting of two neutron stars (NSs) or an NS and a stellar-mass black
hole typically form a massive accretion torus around the remnant black hole or long-lived …