Relativistic reflection spectra of super-spinning black holes

被引：7
作者：
Zhou, Biao [1 ,2 ]
Tripathi, Ashutosh [1 ,2 ]
Abdikamalov, Askar B. [1 ,2 ]
Ayzenberg, Dimitry [1 ,2 ]
Bambi, Cosimo [1 ,2 ]
Nampalliwar, Sourabh [3 ]
Zhou, Menglei [1 ,2 ]
机构：
[1] Fudan Univ, Ctr Field Theory & Particle Phys, Shanghai 200438, Peoples R China
[2] Fudan Univ, Dept Phys, Shanghai 200438, Peoples R China
[3] Eberhard Karls Univ Tubingen, Theoret Astrophys, D-72076 Tubingen, Germany
来源：
EUROPEAN PHYSICAL JOURNAL C | 2020年 / 80卷 / 05期
基金：
中国国家自然科学基金;
关键词：
X-RAY REFLECTION; ACCRETION DISK; ABSORPTION; DENSITY; FIELD;
D O I：
10.1140/epjc/s10052-020-7998-3
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 construct a relativistic reflection model in a non-Kerr spacetime in which, depending on the value of the deformation parameter of the metric, there are black hole solutions with spin parameter |a|>1. We apply our model to fit Suzaku data of four Seyfert galaxies (Ton S180, Ark 120, 1H0419-577, and Swift J0501.9-3239). These galaxies host at the center supermassive black holes that were previously interpreted as near-extremal Kerr black holes. For Ton S180 and 1H0419-577, our measurements are still consistent with the Kerr hypothesis. For Ark 120 and Swift J0501.9-3239, the Kerr solution is not recovered at 3-sigma. We discuss our results and possible systematic uncertainties in the model.
引用
收藏
页数：12
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