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Localization and broadband follow-up of the gravitational-wave transient GW150914


Abbott, BP and Abbott, R and Siellez, K and Rosswog, S and The LIGO Scientific Collaboration and the Virgo Collaboration, the Australian Square Kilometer Array Pathfinder (ASKAP) Collaboration, the BOOTES Collaboration, the Dark Energy Survey and the Dark Energy Camera GW-EM Collaborations, et al., Localization and broadband follow-up of the gravitational-wave transient GW150914, The Astrophysical Journal. Letters, 826 Article L13. ISSN 2041-8205 (2016) [Refereed Article]

Copyright Statement

2016. The American Astronomical Society

DOI: doi:10.3847/2041-8205/826/1/L13


A gravitational-wave (GW) transient was identified in data recorded by the Advanced Laser Interferometer Gravitational-wave Observatory (LIGO) detectors on 2015 September 14. The event, initially designated G184098 and later given the name GW150914, is described in detail elsewhere. By prior arrangement, preliminary estimates of the time, significance, and sky location of the event were shared with 63 teams of observers covering radio, optical, near-infrared, X-ray, and gamma-ray wavelengths with ground- and space-based facilities. In this Letter we describe the low-latency analysis of the GW data and present the sky localization of the first observed compact binary merger. We summarize the follow-up observations reported by 25 teams via private Gamma-ray Coordinates Network circulars, giving an overview of the participating facilities, the GW sky localization coverage, the timeline, and depth of the observations. As this event turned out to be a binary black hole merger, there is little expectation of a detectable electromagnetic (EM) signature. Nevertheless, this first broadband campaign to search for a counterpart of an Advanced LIGO source represents a milestone and highlights the broad capabilities of the transient astronomy community and the observing strategies that have been developed to pursue neutron star binary merger events. Detailed investigations of the EM data and results of the EM follow-up campaign are being disseminated in papers by the individual teams.

Item Details

Item Type:Refereed Article
Keywords:gravitational waves, GW150914, Advanced LIGO
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:152165
Year Published:2016
Web of Science® Times Cited:175
Deposited By:Physics
Deposited On:2022-08-12
Last Modified:2022-10-26

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