Full analytical approximation to the stochastic gravitational wave background generated by cosmic string networks

Abstract

We derive a full analytical approximation to the stochastic gravitational wave background generated by the loops that are produced throughout the cosmological evolution of cosmic string networks. We show that this approximation not only predicts the amplitude of the radiation-era plateau exactly, but also provides a good fit to the high-frequency cut-off and to the low-frequency peak generated by the loops that decay during the matter era, irrespective of cosmic string tension and of the length of loops created. We then find that it provides a good quantitative description of the full stochastic gravitational wave background across the relevant frequency range.

arXiv comment13 pages, 6 figures, submitted to PRD

References in corpus (27)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence
• Cosmic strings
• European Pulsar Timing Array Limits On An Isotropic Stochastic Gravitational-Wave Background
• Cosmological Backgrounds of Gravitational Waves and eLISA/NGO: Phase Transitions, Cosmic Strings and Other Sources
• The number of cosmic string loops
• Quantitative String Evolution
• Probing the gravitational wave background from cosmic strings with LISA
• Extending the Velocity-dependent One-scale String Evolution Model
• Large parallel cosmic string simulations: New results on loop production
• Stochastic gravitational wave background from smoothed cosmic string loops
• Constraints on cosmic string tension imposed by the limit on the stochastic gravitational wave background from the European Pulsar Timing Array
• Probing the pre-BBN universe with gravitational waves from cosmic strings
• Cosmic Archaeology with Gravitational Waves from Cosmic Strings
• Cosmic string loop distribution on all length scales and at any redshift
• Stochastic gravitational waves from cosmic string loops in scaling
• Stochastic Gravitational Wave Background from Light Cosmic Strings
• Anisotropies in the stochastic gravitational-wave background: Formalism and the cosmic string case
• Stochastic Gravitational Wave Background generated by Cosmic String Networks: Velocity-Dependent One-Scale model versus Scale-Invariant Evolution
• Forecast constraints on cosmic string parameters from gravitational wave direct detection experiments
• Particle emission and gravitational radiation from cosmic strings: observational constraints
• Probing Cosmic Superstrings with Gravitational Waves
• Signature of inflation in the stochastic gravitational wave background generated by cosmic string networks
• Gravitational Wave Bursts from Cosmic Superstrings with Y-junctions
• Energy-conservation constraints on cosmic string loop production and distribution functions
• The Stochastic Gravitational Wave Background Generated by Cosmic String Networks: the Small-Loop Regime
• Scaling laws for weakly interacting cosmic (super)string and p-brane networks

Cited by in corpus (34)

• Cosmology with the Laser Interferometer Space Antenna
• Has NANOGrav found first evidence for cosmic strings?
• Beyond the Standard Models with Cosmic Strings
• Fingerprint of Low-Scale Leptogenesis in the Primordial Gravitational-Wave Spectrum
• Baryogenesis from ultralight primordial black holes and strong gravitational waves from cosmic strings
• Electromagnetic Antennas for the Resonant Detection of the Stochastic Gravitational Wave Background
• Gravitational Wave Bursts as Harbingers of Cosmic Strings Diluted by Inflation
• Cross-correlation of the astrophysical gravitational-wave background with galaxy clustering
• Primordial Monopoles and Strings, Inflation, and Gravity Waves
• The Lunar Gravitational-wave Antenna: Mission Studies and Science Case
• Composite Topological Structures in SO(10)
• Gravitational wave emission from metastable current-carrying strings in $E_6$
• Gravitational Waves-Tomography of Low-Scale-Leptogenesis
• Emission of gravitational waves by superconducting cosmic strings
• Revised bounds on local cosmic strings from NANOGrav observations
• Charge-velocity-dependent one-scale linear model
• Impact of the small-scale structure on the Stochastic Background of Gravitational Waves from cosmic strings
• CMB anisotropies generated by cosmic string loops
• Imprint of PBH domination on gravitational waves generated by cosmic strings
• Probing flavored regimes of leptogenesis with gravitational waves from cosmic strings
• Gravitational waves from cosmic strings in Froggatt-Nielsen flavour models
• Gravitational waves from cosmic strings for pedestrians
• Crescendo Beyond the Horizon: More Gravitational Waves from Domain Walls Bounded by Inflated Cosmic Strings
• Dynamical simulations of colliding superconducting strings
• Gravitational Wave Spectral Shapes as a probe of Long Lived Right-handed Neutrinos, Leptogenesis and Dark Matter: Global versus Local B-L Cosmic Strings
• The constraints on the stochastic gravitational wave background from cosmic strings by an electromagnetic resonance system
• Breaking the Strings: the signatures of Cosmic String Loop Fragmentation
• Gravitational wave complementarity and impact of NANOGrav data on gravitational leptogenesis: cosmic strings
• Searching Stochastic Gravitational Wave Background Landscape Across Frequency Bands
• Freezing lakes as analogue models of $\Lambda$CDM cosmology and beyond
• Stochastic gravitational wave background due to core collapse resulting in neutron stars
• Testing Nambu-Goto approximation of cosmic string by lattice field simulations
• Stochastic Gravitational-Wave Background from Stellar Core-Collapse Events
• Detecting stochastic gravitational wave background from cosmic strings with next-generation detector networks: Component separation based on a multi-source astrophysical foreground noise model