The mergers of double neutron star (NS–NS) and black hole (BH)–NS binaries are
promising gravitational wave (GW) sources for Advanced LIGO and future GW detectors. The …

Binary neutron star mergers observations are a unique way to constrain fundamental
physics and astrophysics at the extreme. The interpretation of gravitational-wave events and …

Gamma-ray bursts (GRBs) are divided into two populations,; long GRBs that derive from the
core collapse of massive stars (for example, ref.) and short GRBs that form in the merger of …

The recent detections of the∼ 10 s long γ-ray bursts (GRBs) 211211A and 230307A
followed by softer temporally extended emission (EE) and kilonovae point to a new GRB …

Double neutron star (DNS) systems represent extreme physical objects and the endpoint of
an exotic journey of stellar evolution and binary interactions. Large numbers of DNS systems …

For decades, gamma-ray bursts (GRBs) have been broadly divided into long-and short-
duration bursts, lasting more or less than 2 s, respectively. However, this dichotomy does not …

With the first direct detection of merging black holes in 2015, the era of gravitational wave
(GW) astrophysics began. A complete picture of compact object mergers, however, requires …

In recent years, searches of archival X-ray data have revealed galaxies exhibiting nuclear
quasi-periodic eruptions with periods of several hours. These are reminiscent of the tidal …

Gamma-ray bursts (GRBs) are flashes of high-energy radiation arising from energetic
cosmic explosions. Bursts of long (greater than two seconds) duration are produced by the …

We report our identification of the optical afterglow and host galaxy of the short-duration
gamma-ray burst sGRB 160821B. The spectroscopic redshift of the host is z= 0.162, making …