DYNAMICAL FRICTION ON COSMIC-STRING MOTION AND MAGNETIC-FIELD GENERATION

被引：23

作者：

AVELINO, PP

SHELLARD, EPS

机构：

[1] Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge CB3 9EW, Silver Street

来源：

PHYSICAL REVIEW D | 1995年 / 51卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.51.5946

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We demonstrate that the effects of dynamical friction on the motion of a wiggly cosmic string are much larger than previously estimated for a straight string. Although network simulations are not significantly affected by our results, this does provide a mechanism for transferring linear and angular momentum from the string network to the surrounding matter particles. A consequence of the vorticity produced by this process could be the generation of weak primordial magnetic fields which are necessary to explain observed galactic magnetic fields. © 1995 The American Physical Society.

引用

页码：5946 / 5949

页数：4

共 15 条

[1] COSMIC-STRING EVOLUTION - A NUMERICAL-SIMULATION [J].

ALLEN, B ;

SHELLARD, EPS .

PHYSICAL REVIEW LETTERS, 1990, 64 (02) :119-122

[2]

Allen B., 1990, S FORM EV COSM STRIN, P421

[3]

AVELINO PP, UNPUB

[4]

AVELINO PP, 1994, PHYS REV D, V51, P369

[5] HIGH-RESOLUTION SIMULATIONS OF COSMIC-STRING EVOLUTION .1. NETWORK EVOLUTION [J].

BENNETT, DP ;

BOUCHET, FR .

PHYSICAL REVIEW D, 1990, 41 (08) :2408-2433

[6] INTEGRABLE EQUATION OF STATE FOR NOISY COSMIC STRING [J].

CARTER, B .

PHYSICAL REVIEW D, 1990, 41 (12) :3869-3872

[7] EFFECT OF DYNAMIC FRICTION ON THE MOTION OF COSMIC STRINGS [J].

GARFINKLE, D ;

WILL, CM .

PHYSICAL REVIEW D, 1987, 35 (04) :1124-1130

[8] GENERATION OF MAGNETIC FIELDS IN RADIATION ERA [J].

HARRISON, ER .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1970, 147 (03) :279-&

[9]

MISHUSTIN IN, 1972, ZH EKSP TEOR FIZ, V34, P233

[10]

REES MJ, 1987, Q J ROY ASTRON SOC, V28, P197

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