Test Bodies and Naked Singularities: Is the Self-Force the Cosmic Censor?

被引：171

作者：

Barausse, Enrico ^{[1
]}

Cardoso, Vitor ^{[2
,3
]}

Khanna, Gaurav ^{[4
,5
]}

机构：

[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[2] CENTRA, Dept Fis, IST UTL, P-1049 Lisbon, Portugal

[3] Univ Mississippi, Dept Phys & Astron, University, MS 38677 USA

[4] Univ Massachusetts Dartmouth, Dept Phys, N Dartmouth, MA 02747 USA

[5] Max Planck Inst Gravitat Phys, Albert Einstein Inst, Hannover, Germany

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 26期

基金：

美国国家科学基金会;

关键词：

RADIATION; MASS;

D O I：

10.1103/PhysRevLett.105.261102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Jacobson and Sotiriou showed that rotating black holes could be spun up past the extremal limit by the capture of nonspinning test bodies, if one neglects radiative and self-force effects. This would represent a violation of the cosmic censorship conjecture in four-dimensional, asymptotically flat spacetimes. We show that for some of the trajectories giving rise to naked singularities, radiative effects can be neglected. However, for these orbits the conservative self-force is important, and seems to have the right sign to prevent the formation of naked singularities.

引用

页数：4

共 34 条

[1] Gravitational self-force on a particle in eccentric orbit around a Schwarzschild black hole [J].