Neutron star mergers are the canonical multimessenger events: they have been observed
through photons for half a century, gravitational waves since 2017, and are likely to be …

The recent discoveries of high-energy cosmic neutrinos and gravitational waves from
astrophysical objects have led to a new era of multimessenger astrophysics. In particular …

An energetic γ-ray burst (GRB), GRB 211211A, was observed on 11 December 2021,.
Despite its long duration, typically associated with bursts produced by the collapse of …

We report deep Chandra X-ray Observatory (CXO), Hubble Space Telescope (HST), and
Karl J. Jansky Very Large Array (VLA) observations of the binary neutron star event …

Multimessenger observations of GW170817 have not conclusively established whether the
merger remnant is a black hole (BH) or a neutron star (NS). We show that a long-lived …

Recently born magnetars are promising candidates for the engines powering fast radio
bursts (FRBs). The focus thus far has been placed on millisecond magnetars born in rare …

We perform the first 3D ab-initio general-relativistic neutrino-radiation hydrodynamics of a
long-lived neutron star merger remnant spanning a fraction of its cooling timescale. We find …

The coincident detection of GW170817 in gravitational waves and electromagnetic radiation
spanning the radio to MeV gamma-ray bands provided the first direct evidence that short …

The successful joint observation of the gravitational wave (GW) event GW170817 and its
multiwavelength electromagnetic counterparts enabled us to witness a definite merger event …

Massive neutron stars (NSs) with lifetimes of at least several seconds are expected to be the
result of a sizable fraction of NS mergers. We study their formation using a large set of …