Millisecond-pulsar constraint on cosmic strings

Journal Article · Mon Jan 15 04:00:00 EST 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.41.720· OSTI ID:6966284

Bouchet, F R ^[1]; Bennett, D P ^[2]

---

1. Institut d'Astrophysique de Paris, 98 bis boulevard Arago, 75014 Paris, France (FR) Centre de Physique Theorique, Ecole Polytechnique, 91128 Palaiseau, (France)
2. Physics Department, Princeton University, New jersey 08540 (USA) Astrophysics Department, Princeton University, Princeton, New Jersey 08540 (USA)

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 by the network is dominated by the smallest loops that we can resolve. This reduces the amplitude of the gravity-wave background compared to previous estimates. Reasonable assumptions about how the string network will behave on scales that we cannot resolve indicate that strings with a mass per unit length of {mu}{lt}4{times}10{sup {minus}6}c{sup 2}/G are consistent with the most recent limits on the gravity-wave background that come from millisecond-pulsar timing measurements.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6966284
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 41:2; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
640106 -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BACKGROUND RADIATION
COSMIC RADIO SOURCES
COSMOLOGICAL MODELS
GALAXIES
GRAVITATIONAL WAVES
MATHEMATICAL MODELS
MATHEMATICS
NUMERICAL ANALYSIS
PULSARS
RADIATIONS
SPACE-TIME
TOPOLOGY