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

Authors

B. P. Abbott, California Institute of TechnologyFollow
R. Abbott, California Institute of TechnologyFollow
T. D. Abbott, Louisiana State UniversityFollow
S. Abraham, Inter-University Centre for Astronomy and Astrophysics IndiaFollow
F. Acernese, Università degli Studi di SalernoFollow
K. Ackley, Monash UniversityFollow
C. Adams, LIGO LivingstonFollow
R. X. Adhikari, California Institute of TechnologyFollow
V. B. Adya, Max Planck Institute for Gravitational Physics (Albert Einstein Institute)Follow
C. Affeldt, Max Planck Institute for Gravitational Physics (Albert Einstein Institute)Follow
M. Agathos, University of CambridgeFollow
K. Agatsuma, University of BirminghamFollow
N. Aggarwal, LIGO, Massachusetts Institute of TechnologyFollow
O. D. Aguiar, Instituto Nacional de Pesquisas EspaciaisFollow
L. Aiello, Gran Sasso Science InstituteFollow
A. Ain, Inter-University Centre for Astronomy and Astrophysics IndiaFollow
P. Ajith, Tata Institute of Fundamental Research, MumbaiFollow
G. Allen, University of Illinois Urbana-ChampaignFollow
A. Allocca, Università di PisaFollow
M. A. Aloy, Universitat de València
P. A. Altin, The Australian National UniversityFollow
A. Amato, IN2P3 Institut National de Physique Nucleaire et de Physique des ParticulesFollow
A. Ananyeva, California Institute of TechnologyFollow
S. B. Anderson, California Institute of TechnologyFollow
W. G. Anderson, University of Wisconsin-MilwaukeeFollow
S. V. Angelova, University of Strathclyde
S. Antier, Laboratoire de l'Accélérateur Linéaire
S. Appert, California Institute of Technology
K. Arai, California Institute of Technology
M. C. Araya, California Institute of Technology
J. S. Areeda, California State University, Fullerton
M. Arène, APC - AstroParticule et Cosmologie
N. Arnaud, Laboratoire de l'Accélérateur Linéaire

Document Type

Article

Publication Date

4-1-2019

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 (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.

Publication Source (Journal or Book title)

Astrophysical Journal

Recommended Citation

Abbott, B., Abbott, R., Abbott, T., Abraham, S., Acernese, F., Ackley, K., Adams, C., Adhikari, R., Adya, V., Affeldt, C., Agathos, M., Agatsuma, K., Aggarwal, N., Aguiar, O., Aiello, L., Ain, A., Ajith, P., Allen, G., Allocca, A., Aloy, M., Altin, P., Amato, A., Ananyeva, A., Anderson, S., Anderson, W., Angelova, S., Antier, S., Appert, S., Arai, K., Araya, M., Areeda, J., Arène, M., & Arnaud, N. (2019). Search for Transient Gravitational-wave Signals Associated with Magnetar Bursts during Advanced LIGO's Second Observing Run. Astrophysical Journal, 874 (2) https://doi.org/10.3847/1538-4357/ab0e15