H. Overmier

TL;DR: In this article, the Weave semi-coherent method was used to search for continuous gravitational waves from the neutron stars in the Cassiopeia A (Cas A) and Vela Jr. supernova remnants.

TL;DR: In this article , the authors presented results of an all-sky search for continuous gravitational waves which can be produced by spinning neutron stars with an asymmetry around their rotation axis, using data from the third observing run of the Advanced LIGO and Advanced Virgo detectors.

TL;DR: In this article, frequency-dependent metrics are derived and used to concisely describe physical mechanisms behind squeezing's simultaneous interaction with transversemode selective optical cavities and the quantum radiation pressure noise of suspended mirrors.

TL;DR: The hydraulic external pre-isolator (HEPI) as mentioned in this paper is the first six degrees of freedom active seismic isolation system implemented at the LIGO and has been successfully applied at the Hanford Observatory.

TL;DR: In this paper, the authors reported results of a deep all-sky search for periodic gravitational waves from isolated neutron stars in data from the first Advanced LIGO observing run, where they found no significant signal candidate and set the most stringent upper limits to date on the amplitude of gravitational wave signals from the target population.