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Low-latency gravitational-wave alerts for multimessenger astronomy during the second advanced LIGO and Virgo observing run

Low-latency gravitational-wave alerts for multimessenger astronomy during the second advanced LIGO and Virgo observing run
Low-latency gravitational-wave alerts for multimessenger astronomy during the second advanced LIGO and Virgo observing run
Advanced LIGO's second observing run (O2), conducted from 2016 November 30 to 2017 August 25, combined with Advanced Virgo's first observations in 2017 August, witnessed the birth of gravitational-wave multimessenger astronomy. The first ever gravitational-wave detection from the coalescence of two neutron stars, GW170817, and its gamma-ray counterpart, GRB 170817A, led to an electromagnetic follow-up of the event at an unprecedented scale. Several teams from across the world searched for EM/neutrino counterparts to GW170817, paving the way for the discovery of optical, X-ray, and radio counterparts. In this article, we describe the online identification of gravitational-wave transients and the distribution of gravitational-wave alerts by the LIGO and Virgo collaborations during O2. We also describe the gravitational-wave observables that were sent in the alerts to enable searches for their counterparts. Finally, we give an overview of the online candidate alerts shared with observing partners during O2. Alerts were issued for 14 candidates, 6 of which have been confirmed as gravitational-wave events associated with the merger of black holes or neutron stars. Of the 14 alerts, 8 were issued less than an hour after data acquisition.
0004-637X
1-20
Abbott, B.P.
20b32f53-5355-40eb-9d69-91c95d56e693
Abbott, R.
ceb7bd1e-f214-46dd-9972-a194692a86aa
Abbott, T.D.
40955bf8-1011-46ab-a787-34050875d7fe
Jones, David
b8f3e32c-d537-445a-a1e4-7436f472e160
et al.
Abbott, B.P.
20b32f53-5355-40eb-9d69-91c95d56e693
Abbott, R.
ceb7bd1e-f214-46dd-9972-a194692a86aa
Abbott, T.D.
40955bf8-1011-46ab-a787-34050875d7fe
Jones, David
b8f3e32c-d537-445a-a1e4-7436f472e160

Abbott, B.P., Abbott, R., Abbott, T.D. and Jones, David , et al. (2019) Low-latency gravitational-wave alerts for multimessenger astronomy during the second advanced LIGO and Virgo observing run. The Astrophysical Journal, 875 (2), 1-20. (doi:10.3847/1538-4357/ab0e8f).

Record type: Article

Abstract

Advanced LIGO's second observing run (O2), conducted from 2016 November 30 to 2017 August 25, combined with Advanced Virgo's first observations in 2017 August, witnessed the birth of gravitational-wave multimessenger astronomy. The first ever gravitational-wave detection from the coalescence of two neutron stars, GW170817, and its gamma-ray counterpart, GRB 170817A, led to an electromagnetic follow-up of the event at an unprecedented scale. Several teams from across the world searched for EM/neutrino counterparts to GW170817, paving the way for the discovery of optical, X-ray, and radio counterparts. In this article, we describe the online identification of gravitational-wave transients and the distribution of gravitational-wave alerts by the LIGO and Virgo collaborations during O2. We also describe the gravitational-wave observables that were sent in the alerts to enable searches for their counterparts. Finally, we give an overview of the online candidate alerts shared with observing partners during O2. Alerts were issued for 14 candidates, 6 of which have been confirmed as gravitational-wave events associated with the merger of black holes or neutron stars. Of the 14 alerts, 8 were issued less than an hour after data acquisition.

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Accepted/In Press date: 18 February 2019
e-pub ahead of print date: 25 April 2019

Identifiers

Local EPrints ID: 433318
URI: http://eprints.soton.ac.uk/id/eprint/433318
ISSN: 0004-637X
PURE UUID: 45afa68c-282a-48d2-974b-9e549e8e4ffb
ORCID for David Jones: ORCID iD orcid.org/0000-0002-0117-7567

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Date deposited: 14 Aug 2019 16:30
Last modified: 17 Dec 2019 01:54

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Contributors

Author: B.P. Abbott
Author: R. Abbott
Author: T.D. Abbott
Author: David Jones ORCID iD

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