Absorption by stringy black holes

被引：5

作者：

Xavier, Sergio V. M. C. B. ^{[1
]}

Benone, Carolina L. ^{[2
]}

Crispino, Luis C. B. ^{[1
]}

机构：

[1] Univ Fed Para, Programa Posgrad Fis, BR-66075110 Belem, Para, Brazil

[2] Univ Fed Para, Campus Univ Salinopolis, BR-68721000 Salinopolis, Para, Brazil

来源：

EUROPEAN PHYSICAL JOURNAL C | 2021年 / 81卷 / 12期

基金：

欧盟地平线“2020”;

关键词：

GRAVITATION FIELD; CP CONSERVATION; MASS;

D O I：

10.1140/epjc/s10052-021-09933-9

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We investigate the absorption of planar massless scalar waves by a charged rotating stringy black hole, namely a Kerr-Sen black hole. We compute numerically the absorption cross section and compare our results with those of the Kerr-Newman black hole, a classical general relativity solution. In order to better compare both charged black holes, we define the ratio of the black hole charge to the extreme charge as Q. We conclude that Kerr-Sen and Kerr-Newman black holes have a similar absorption cross section, with the difference increasing for higher values of Q.

引用

页数：9

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