Circular cosmic string loop in Brans-Dicke theory

被引：27

作者：

Barros, A ^{[1
]}

Sen, AA

Romero, C

机构：

[1] Univ Fed Roraima, Dept Fis, BR-69310270 Boa Vista, RR, Brazil

[2] Harish Chandra Res Inst, Allahabad 211019, Uttar Pradesh, India

[3] Univ Fed Paraiba, Dept Fis, BR-58059970 Joao Pessoa, Paraiba, Brazil

来源：

BRAZILIAN JOURNAL OF PHYSICS | 2001年 / 31卷 / 03期

关键词：

D O I：

10.1590/S0103-97332001000300026

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The gravitational field of a stationary circular cosmic string loop, externally supported against collapse, is investigated in the context of Brans-Dicke theory in the weak field approximation of the field equations. The solution is quasi-conformally related to the corresponding solution in Einstein's General Relativity(GR) and goes over to the corresponding solution in GR when the Brans-Dicke parameter omega becomes infinitely large.

引用

页码：507 / 510

页数：4

共 22 条

[1]

Arnowitt R. L., 1962, GRAVITATION INTRO CU

[2] Does Brans-Dicke theory always yield general relativity in the infinite omega limit? [J].

Banerjee, N ;

Sen, S .

PHYSICAL REVIEW D, 1997, 56 (02) :1334-1337

[3] COSMIC VACUUM STRINGS AND DOMAIN-WALLS IN BRANS-DICKE THEORY OF GRAVITY [J].

BARROS, A ;

ROMERO, C .

JOURNAL OF MATHEMATICAL PHYSICS, 1995, 36 (10) :5800-5804

[4] On the weak field approximation of the Brans-Dicke theory of gravity [J].

Barros, A ;

Romero, C .

PHYSICS LETTERS A, 1998, 245 (1-2) :31-34

[5]

BATEMAN H, 1952, PARTIAL DIFFERENTIAL

[6] GRAVITATIONAL-RADIATION FROM COSMIC STRINGS AND THE MICROWAVE BACKGROUND [J].

BRANDENBERGER, RH ;

ALBRECHT, A ;

TUROK, N .

NUCLEAR PHYSICS B, 1986, 277 (3-4) :605-620

[7] MACHS PRINCIPLE AND A RELATIVISTIC THEORY OF GRAVITATION [J].

BRANS, C ;

DICKE, RH .

PHYSICAL REVIEW, 1961, 124 (03) :925-&

[8] TOPOLOGICAL DEFECTS IN EXTENDED INFLATION [J].

COPELAND, EJ ;

KOLB, EW ;

LIDDLE, AR .

PHYSICAL REVIEW D, 1990, 42 (08) :2911-2914

[9] GRAVITATIONAL-FIELDS OF STRAIGHT AND CIRCULAR COSMIC STRINGS - RELATION BETWEEN GRAVITATIONAL MASS, ANGULAR DEFICIT, AND INTERNAL STRUCTURE [J].

FROLOV, VP ;

ISRAEL, W ;

UNRUH, WG .

PHYSICAL REVIEW D, 1989, 39 (04) :1084-1096

[10] GRAVITATIONAL LENSING EFFECTS OF VACUUM STRINGS - EXACT-SOLUTIONS [J].

GOTT, JR .

ASTROPHYSICAL JOURNAL, 1985, 288 (02) :422-427

← 1 2 3 →