Due to relativistic bulk motion, the structure and orientation of gamma-ray burst (GRB) jets
have a fundamental role in determining how they appear. The recent discovery of the …

The afterglow of the binary neutron-star merger GW170817 gave evidence for a structured
relativistic jet,,,–and a link,, between such mergers and short gamma-ray bursts …

The ground-based gravitational wave (GW) detectors LIGO and Virgo have enabled the birth
of multi-messenger GW astronomy via the detection of GWs from merging stellar-mass black …

We present realistic expectations for the number and properties of neutron star binary
mergers to be detected as multi-messenger sources during the upcoming fourth observing …

For the first∼ 3 yrs after the binary neutron star merger event GW 170817, the radio and X-
ray radiation has been dominated by emission from a structured relativistic off-axis jet …

In this paper, we model the dynamics and radiation physics of the rarity event GRB 221009A
afterglow in detail. By introducing a top-hat jet that propagates in an environment dominated …

The ultra-relativistic outflows powering gamma-ray bursts (GRBs) acquire angular structure
through their interaction with external material. They are often characterized by a compact …

GW170817 is the first binary neutron star (NS) merger detected in gravitational waves (GWs)
and photons, and so far remains the only GW event of its class with a definitive …

The multimessenger data of neutron star merger events are promising for constraining the
Hubble constant. So far, GW170817 is still the unique gravitational wave event with …

We present an analytic model for measuring the jet core angle (θ c) and viewing angle (θ
obs) of off-axis gamma-ray bursts independently of the jet angular structure outside of the …