Siellez - Comprehensive all-sky search for periodic gravitational waves.pdf (708.71 kB)
Comprehensive all-sky search for periodic gravitational waves in the sixth science run LIGO data
journal contribution
posted on 2023-05-21, 11:36 authored by Abbott, BP, Abbott, R, Karelle SiellezKarelle Siellez, Zweizig, JWe report on a comprehensive all-sky search for periodic gravitational waves in the frequency band 100–1500 Hz and with a frequency time derivative in the range of [−1.18,+1.00] x 10−8 Hz/s. Such a signal could be produced by a nearby spinning and slightly nonaxisymmetric isolated neutron star in our galaxy. This search uses the data from the initial LIGO sixth science run and covers a larger parameter space with respect to any past search. A Loosely Coherent detection pipeline was applied to follow up weak outliers in both Gaussian (95% recovery rate) and non-Gaussian (75% recovery rate) bands. No gravitational wave signals were observed, and upper limits were placed on their strength. Our smallest upper limit on worst-case (linearly polarized) strain amplitude h0 is 9.7 x 10−25 near 169 Hz, while at the high end of our frequency range we achieve a worst-case upper limit of 5.5 x 10−24. Both cases refer to all sky locations and entire range of frequency derivative values.
History
Publication title
Physical Review D: covering particles, fields, gravitation, and cosmologyVolume
94Issue
4Article number
042002Number
042002Pagination
1-14ISSN
2470-0010Department/School
School of Natural SciencesPublisher
American Physical SocietyPlace of publication
United StatesRights statement
© 2016 American Physical Society. This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) License (https://creativecommons.org/licenses/by/4.0/). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. Must link to published article.Repository Status
- Open