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

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

© 2019. The American Astronomical Society. All rights reserved.. 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 roo...

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Bibliographic Details
Main Authors: Aggarwal, Nancy, Barnum, Sam, Barsotti, Lisa, Biscans, Sebastien, Buikema, Aaron, Demos, Nicholas, Donovan, Frederick J, Eisenstein, Robert Alan, Evans, Matthew J, Fernandez Galiana, Alvaro-Miguel, Fishner, Jason M., Fritschel, Peter K, Gras, Slawomir, Hall, E. D., Katsavounidis, Erotokritos, Kontos, Antonios, Lane, B. B., Lanza Jr, Robert K, Lynch, Ryan Christopher, MacInnis, Myron E, Mansell, Georgia, Mason, Kenneth R, Matichard, Fabrice, Mavalvala, Nergis, McCuller, Lee P, Mittleman, Richard K, Ray Pitambar Mohapatra, Satyanarayan, Ng, Kwan Yeung, Shoemaker, David H, Sudhir, Vivishek, Tse, Maggie, Vitale, Salvatore, Weiss, Rainer, Whittle, Christopher Mark, Yu, Hang, Yu, Haocun, Zucker, Michael E
Other Authors: LIGO (Observatory : Massachusetts Institute of Technology)
Format: Article
Language:English
Published: American Astronomical Society 2022
Online Access:https://hdl.handle.net/1721.1/132417.2
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Summary:© 2019. The American Astronomical Society. All rights reserved.. 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 (h rss ) from incoming intermediate-duration gravitational waves ranging from 1.1 ×10 -22 at 150 Hz to 4.4 ×10 -22 at 1550 Hz at 50% detection efficiency. From the known distance to the magnetar SGR 1806-20 (8.7 kpc), we can place upper bounds on the isotropic gravitational-wave energy of 3.4 ×10 44 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 2.1 ×10 44 erg for short white noise bursts, and 2.3 ×10 47 erg for 100 ms long ringdowns at 1500 Hz, both at 50% detection efficiency.

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