Now that detection of gravitational-wave signals from the coalescence of extra-galactic
compact binary star mergers has become nearly routine, it is intriguing to consider other …

The interpretation of pulsar rotational glitches, the sudden increase in spin frequency of
neutron stars, is a half-century-old challenge. The common view is that glitches are driven by …

Results are presented of searches for continuous gravitational waves from 20 accreting
millisecond x-ray pulsars with accurately measured spin frequencies and orbital parameters …

Gravitational-wave observations by the laser interferometer gravitational-wave observatory
(LIGO) and Virgo have provided us a new tool to explore the Universe on all scales from …

The next generation of ground-based gravitational-wave detectors will observe
coalescences of black holes and neutron stars throughout the cosmos, thousands of them …

Neutron stars are excellent emitters of gravitational waves. Squeezing matter beyond
nuclear densities invites exotic physical processes, many of which violently transfer large …

Transient gravitational waves (GWs) from compact binary coalescences (Abbott et al. 2019b,
2021a) have been directly observed by the Advanced Laser Interferometer Gravitational …

Continuous gravitational waves (CWs) are quasi-monochromatic signals expected to be
ever-present in the data of gravitational-wave (GW) detectors such as Advanced LIGO (Aasi …

With the doors beginning to swing open on the new gravitational wave astronomy, this
review provides an up-to-date survey of the most important physical mechanisms that could …

Neutron stars are compact and dense celestial objects that offer the unique opportunity to
explore matter and its interactions under conditions that cannot be reproduced elsewhere in …