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Search for Transient Gravitational-wave Signals Associated with Magnetar Bursts during Advanced LIGO's Second Observing Run

Citation

Abbott, BP and Abbott, R and Siellez, K and Zweizig, J, LIGO Scientific Collaboration and the Virgo Collaboration, Search for Transient Gravitational-wave Signals Associated with Magnetar Bursts during Advanced LIGO's Second Observing Run, The Astrophysical Journal: An International Review of Astronomy and Astronomical Physics, 874, (2) Article 163. ISSN 0004-637X (2019) [Refereed Article]


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DOI: doi:10.3847/1538-4357/ab0e15

Abstract

We present the results of a search for short- and intermediate-duration gravitational-wave signals from four magnetar bursts in Advanced LIGO's second observing run. We find no evidence of a signal and set upper bounds on the root sum squared of the total dimensionless strain (hrss) from incoming intermediate-duration gravitational waves ranging from 1.110−22 at 150 Hz to 4.410−22 at 1550 Hz at 50% detection efficiency. From the known distance to the magnetar SGR 180620 (8.7 kpc), we can place upper bounds on the isotropic gravitational-wave energy of 3.41044 erg at 150 Hz assuming optimal orientation. This represents an improvement of about a factor of 10 in strain sensitivity from the previous search for such signals, conducted during initial LIGO's sixth science run. The short-duration search yielded upper limits of 2.11044 erg for short white noise bursts, and 2.31047 erg for 100 ms long ringdowns at 1500 Hz, both at 50% detection efficiency.

Item Details

Item Type:Refereed Article
Keywords:Transient gravitational-wave signals, gravitational waves, magnetar bursts, 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:151941
Year Published:2019
Web of Science® Times Cited:20
Deposited By:Physics
Deposited On:2022-08-09
Last Modified:2022-08-09
Downloads:0

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