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Constraints on cosmic strings from the LIGO-Virgo gravitational-wave detectors
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arxiv 1310.2384 v2 pith:AZ2VJMRA submitted 2013-10-09 gr-qc astro-ph.CO
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abstract
Cosmic strings can give rise to a large variety of interesting astrophysical phenomena. Among them, powerful bursts of gravitational waves (GWs) produced by cusps are a promising observational signature. In this Letter we present a search for GWs from cosmic string cusps in data collected by the LIGO and Virgo gravitational wave detectors between 2005 and 2010, with over 625 days of live time. We find no evidence of GW signals from cosmic strings. From this result, we derive new constraints on cosmic string parameters, which complement and improve existing limits from previous searches for a stochastic background of GWs from cosmic microwave background measurements and pulsar timing data. In particular, if the size of loops is given by the gravitational backreaction scale, we place upper limits on the string tension $G\mu$ below $10^{-8}$ in some regions of the cosmic string parameter space.
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Cited by 4 Pith papers
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Soliton foam formation in the early Universe
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Post-inflationary quantum fluctuations of two scalar fields can form a three-dimensional soliton foam of closed domain walls, string-bounded walls, and scalar radiation, without a thermal phase transition.
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Probing the gravitational wave background from cosmic strings with LISA
astro-ph.CO 2019-09 conditional novelty 6.0 of 10
LISA is projected to probe cosmic string tensions G mu down to about 1e-17 and to measure spectral features from early-universe physics.
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Searching Stochastic Gravitational Wave Background Landscape Across Frequency Bands
gr-qc 2025-11 conditional novelty 5.0 of 10
A hybrid cosmic string–domain wall model can fit the NANOGrav 15-year signal, and its high-frequency tail lies within LISA's projected reach, making the interpretation testable.
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Waveform Modelling for the Laser Interferometer Space Antenna
gr-qc 2023-11 unverdicted novelty 2.0 of 10
A review of existing waveform models for LISA sources and the challenges that must still be overcome.
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