Search for astrophysical rotating Ellis wormholes with x-ray reflection spectroscopy

被引：81

作者：

Zhou, Menglei ^{[1
,2
]}

Cardenas-Avendano, Alejandro ^{[1
,2
,3
]}

Bambi, Cosimo ^{[1
,2
,4
]}

Kleihaus, Burkhard ^{[5
]}

Kunz, Jutta ^{[5
]}

机构：

[1] Fudan Univ, Ctr Field Theory & Particle Phys, Shanghai 200433, Peoples R China

[2] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China

[3] Fdn Univ Konrad Lorenz, Programa Matemat, Bogota 110231, Colombia

[4] Univ Tubingen, Theoret Astrophys, D-72076 Tubingen, Germany

[5] Carl von Ossietzky Univ Oldenburg, Inst Phys, D-26111 Oldenburg, Germany

来源：

PHYSICAL REVIEW D | 2016年 / 94卷 / 02期

关键词：

BLACK-HOLE CANDIDATES; GENERAL-RELATIVITY; PARTICLE MODEL; DRAINHOLE; ACCRETION; SPACETIME; DISKS;

D O I：

10.1103/PhysRevD.94.024036

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recently, two of us have found numerically rotating Ellis wormholes as solutions of four-dimensional Einstein gravity coupled to a phantom field. In this paper, we investigate possible observational signatures to identify similar objects in the Universe. These symmetric wormholes have a mass and are compact, so they may look like black holes. We study the iron line profile in the x-ray reflection spectrum of a thin accretion disk around rotating Ellis wormholes and we find some specific observational signatures that can be used to distinguish these objects from Kerr black holes. We simulate some observations with XIS/Suzaku assuming typical parameters for a bright active galactic nucleus and we conclude that current x-ray missions cannot apply strong constraints.

引用

页数：9

共 41 条

[31] Phantom energy traversable wormholes [J].