Absorption of photons and fermions by black holes in four dimensions

被引：83

作者：

Gubser, SS ^{[1
]}

机构：

[1] Princeton Univ, Joseph Henry Labs, Princeton, NJ 08544 USA

来源：

PHYSICAL REVIEW D | 1997年 / 56卷 / 12期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.56.7854

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The absorption of photons and fermions into four-dimensional black holes is described by equations which in certain cases can be analyzed using dyadic index techniques. The resulting absorption cross sections for near-external black holes have a form at low energies suggestive of the effective string model. A coupling to the effective string is proposed for spin-0 and spin-1/2 fields of pure N=4 supergravity which respects the unbroken supersymmetry of extreme black holes and correctly predicts dilaton, axion, and fermion cross sections up to an overall normalization. [S0556-2821(97)04124-6].

引用

页码：7854 / 7868

页数：15

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