eCite Digital Repository

Properties of the Binary Neutron Star Merger GW170817

Citation

Abbott, BP and Abbott, R and Siellez, K and Zweizig, J, LIGO Scientific Collaboration and Virgo Collaboration, Properties of the Binary Neutron Star Merger GW170817, Physical Review X, 9 Article 011001. ISSN 2160-3308 (2019) [Refereed Article]


Preview
PDF (Published)
4Mb
  

Copyright Statement

© 2019, The Author(s). Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) License (https://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

DOI: doi:10.1103/PhysRevX.9.011001

Abstract

On August 17, 2017, the Advanced LIGO and Advanced Virgo gravitational-wave detectors observed a low-mass compact binary inspiral. The initial sky localization of the source of the gravitational-wave signal, GW170817, allowed electromagnetic observatories to identify NGC 4993 as the host galaxy. In this work, we improve initial estimates of the binary’s properties, including component masses, spins, and tidal parameters, using the known source location, improved modeling, and recalibrated Virgo data. We extend the range of gravitational-wave frequencies considered down to 23 Hz, compared to 30 Hz in the initial analysis. We also compare results inferred using several signal models, which are more accurate and incorporate additional physical effects as compared to the initial analysis. We improve the localization of the gravitational-wave source to a 90% credible region of 16  deg2. We find tighter constraints on the masses, spins, and tidal parameters, and continue to find no evidence for nonzero component spins.

Item Details

Item Type:Refereed Article
Keywords:binary neutron star, star merger, gravitational waves, low-mass binary inspiral
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:General relativity and gravitational waves
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Siellez, K (Dr Karelle Siellez)
ID Code:151948
Year Published:2019
Web of Science® Times Cited:581
Deposited By:Physics
Deposited On:2022-08-09
Last Modified:2022-09-28
Downloads:0

Repository Staff Only: item control page