Irrotational dust with divH=O

被引：14

作者：

Lesame, WM ^{[1
]}

Ellis, GFR ^{[1
]}

Dunsby, PKS ^{[1
]}

机构：

[1] UNIV FT HARE, DEPT APPL MATH, ZA-5700 ALICE, SOUTH AFRICA

来源：

PHYSICAL REVIEW D | 1996年 / 53卷 / 02期

关键词：

D O I：

10.1103/PhysRevD.53.738

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

For irrotational dust the shear tensor is consistently diagonalizable with its covariant time derivative: sigma(ab) = 0 = sigma(ab), a not equal b, if and only if the divergence of the magnetic part of the Weyl tensor vanishes: divH = 0. We show here that in that case, the consistency of the Ricci constraints requires that the magnetic part of the Weyl tensor itself vanishes: H-ab = 0.

引用

页码：738 / 746

页数：9

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