Gravitational radiation from cosmic (super)strings: Bursts, stochastic background, and observational windows

  title={Gravitational radiation from cosmic (super)strings: Bursts, stochastic background, and observational windows},
  author={T. Damour and Alexander Vilenkin},
  journal={Physical Review D},
The gravitational wave (GW) signals emitted by a network of cosmic strings are reexamined in view of the possible formation of a network of cosmic superstrings at the end of brane inflation. The reconnection probability p of intersecting fundamental or Dirichlet strings might be much smaller than 1, and the properties of the resulting string network may differ significantly from those of ordinary strings (which have p=1). In addition, it has been recently suggested that the typical length of… 
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Constraints on cosmic strings using data from the first Advanced LIGO observing run
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The strong beams of high-frequency gravitational waves (GW) emitted by cusps and kinks of cosmic strings are studied in detail. As a consequence of these beams, the stochastic ensemble of GW's
Relic gravitational waves from cosmic strings: Updated constraints and opportunities for detection.
Comparison of the total spectrum due to a network of strings with the recently improved bound on the amplitude of a stochastic gravitational wave background, due to measurements of noise in pulsar signal arrival times, allows us to exclude a range of values of $\ensuremath{\mu}$, the cosmic string linear mass density, for certain values of cosmic string and cosmological parameters.
Gamma-ray bursts from superconducting cosmic strings
Cusps of superconducting strings can serve as GRB engines. A powerful beamed pulse of electromagnetic radiation from a cusp produces a jet of accelerated particles, whose propagation is terminated by
Cosmological constraints on cosmic-string gravitational radiation.
  • Caldwell, Allen
  • Physics
    Physical review. D, Particles and fields
  • 1992
The primordial nucleosynthesis and pulsar timing noise constraints on cosmic-string gravitational radiation are computed and constraints to {mu} which are more restrictive than any previous limit are found.
Gravitational wave bursts from cosmic strings
The GW bursts discussed here might be accompanied by gamma ray bursts and be detectable by the planned GW detectors LIGO/VIRGO and LISA for string tensions as small as G&mgr; approximately 10(-13).
Cosmic Strings
Cosmic strings, a hot subject in the 1980’s and early 1990’s, lost its appeal when it was found that it leads to inconsistencies in the power spectrum of the measured cosmic microwave background
Millisecond-pulsar constraint on cosmic strings.
We study the gravity-wave background produced by a network of cosmic strings using high-resolution numerical simulations of string evolution. Our simulations show that the spectrum of loops produced
Gravitational radiation from cosmic strings.
The momentum radiation rate from loops is calculated and it is shown that cosmological loops formed with sufficiently small initial velocities are slowed down by dynamical friction and do not rocket away.
Gravitational interactions of cosmic strings
Breaking a Yang–Mills symmetry at very high energy could lead to macroscopic structures in the vacuum called ‘strings’, which may be the cause of galaxy formation and clustering. Dissipative