Document Type
Article
Publication Date
11-11-2021
Abstract
After the detection of gravitational waves from compact binary coalescences, the search for transient gravitational-wave signals with less well-defined waveforms for which matched filtering is not well suited is one of the frontiers for gravitational-wave astronomy. Broadly classified into "short" less than or similar to 1 s and "long" greater than or similar to 1 s duration signals, these signals are expected from a variety of astrophysical processes, including non-axisymmetric deformations in magnetars or eccentric binary black hole coalescences. In this work, we present a search for long-duration gravitational-wave transients from Advanced LIGO and Advanced Virgo's third observing run from April 2019 to March 2020. For this search, we use minimal assumptions for the sky location, event time, waveform morphology, and duration of the source. The search covers the range of 2-500 s in duration and a frequency band of 24-2048 Hz. We find no significant triggers within this parameter space; we report sensitivity limits on the signal strength of gravitational waves characterized by the root-sum-square amplitude h(rss) as a function of waveform morphology. These hrss limits improve upon the results from the second observing run by an average factor of 1.8.
Recommended Citation
LIGO Scientific Collaboration, Virgo Collaboration, and KAGRA Collaboration, R. Abbott, T. D. Abbott, F. Acernese, K. Ackley, C. Adams, N. Adhikari, et al. 2021. “All-Sky Search for Long-Duration Gravitational-Wave Bursts in the Third Advanced LIGO and Advanced Virgo Run.” Physical Review D 104 (10): 102001. https://doi.org/10.1103/PhysRevD.104.102001.
Publication Title
Physical Review D
DOI
10.1103/PhysRevD.104.102001
Comments
© 2021 American Physical Society. Original published version available at https://doi.org/10.1103/PhysRevD.104.102001