Document Type
Article
Publication Date
11-1-2015
Journal / Book Title
The Astrophysical Journal
Abstract
We describe directed searches for continuous gravitational waves (GWs) in data from the sixth Laser Interferometer Gravitational-wave Observatory (LIGO) science data run. The targets were nine young supernova remnants not associated with pulsars; eight of the remnants are associated with non-pulsing suspected neutron stars. One target's parameters are uncertain enough to warrant two searches, for a total of 10. Each search covered a broad band of frequencies and first and second frequency derivatives for a fixed sky direction. The searches coherently integrated data from the two LIGO interferometers over time spans from 5.3-25.3 days using the matched-filtering -statistic. We found no evidence of GW signals. We set 95% confidence upper limits as strong (low) as 4 × 10-25 on intrinsic strain, 2 × 10-7 on fiducial ellipticity, and 4 × 10-5 on r-mode amplitude. These beat the indirect limits from energy conservation and are within the range of theoretical predictions for neutron-star ellipticities and r-mode amplitudes.
DOI
10.1088/0004-637X/813/1/39
MSU Digital Commons Citation
Aasi, J.; Abbott, B. P.; Abbott, R.; Abbott, T.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Favata, Marc; Ghosh, Shaon; and Martin, Rodica, "Searches for Continuous Gravitational Waves from Nine Young Supernova Remnants" (2015). Department of Physics and Astronomy Faculty Scholarship and Creative Works. 135.
https://digitalcommons.montclair.edu/physics-astron-facpubs/135
Published Citation
Aasi, J., Abbott, B. P., Abbott, R., Abbott, T., Abernathy, M. R., Acernese, F., ... & Chua, S. (2015). Searches for continuous gravitational waves from nine young supernova remnants. The Astrophysical Journal, 813(1), 39.