Abstract
Gravitational radiation from oscillating loops of string is studied both analytically and numerically. The total radiated power is found to be P=G1/4, where 1/4 is the mass density of the string and is a numerical coefficient 1/4100. The intensity and the spectrum of the stochastic gravitational-wave background produced by the loops are calculated. Gravitational radiation from asymmetric loops carries not only energy, but also momentum; the loop recoils and accelerates like a rocket. 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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3052-3058 |
| Number of pages | 7 |
| Journal | Physical Review D |
| Volume | 31 |
| Issue number | 12 |
| DOIs | |
| State | Published - 1985 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
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Gravitational radiation from cosmic strings. / Vachaspati, Tanmay; Vilenkin, Alexander.
In: Physical Review D, Vol. 31, No. 12, 1985, p. 3052-3058.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Gravitational radiation from cosmic strings
AU - Vachaspati, Tanmay
AU - Vilenkin, Alexander
PY - 1985
Y1 - 1985
N2 - Gravitational radiation from oscillating loops of string is studied both analytically and numerically. The total radiated power is found to be P=G1/4, where 1/4 is the mass density of the string and is a numerical coefficient 1/4100. The intensity and the spectrum of the stochastic gravitational-wave background produced by the loops are calculated. Gravitational radiation from asymmetric loops carries not only energy, but also momentum; the loop recoils and accelerates like a rocket. 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.
AB - Gravitational radiation from oscillating loops of string is studied both analytically and numerically. The total radiated power is found to be P=G1/4, where 1/4 is the mass density of the string and is a numerical coefficient 1/4100. The intensity and the spectrum of the stochastic gravitational-wave background produced by the loops are calculated. Gravitational radiation from asymmetric loops carries not only energy, but also momentum; the loop recoils and accelerates like a rocket. 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.
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U2 - 10.1103/PhysRevD.31.3052
DO - 10.1103/PhysRevD.31.3052
M3 - Article
VL - 31
SP - 3052
EP - 3058
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 1550-7998
IS - 12
ER -