Relativistic reflection spectra of super-spinning black holes
Abstract 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 $$|a_*| > 1$$ |a∗|>1 . We apply our model to fit Suzaku data of four Seyfert galaxies (T...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2020-05-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-020-7998-3 |
| _version_ | 1828782918139379712 |
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| author | Biao Zhou Ashutosh Tripathi Askar B. Abdikamalov Dimitry Ayzenberg Cosimo Bambi Sourabh Nampalliwar Menglei Zhou |
| author_facet | Biao Zhou Ashutosh Tripathi Askar B. Abdikamalov Dimitry Ayzenberg Cosimo Bambi Sourabh Nampalliwar Menglei Zhou |
| author_sort | Biao Zhou |
| collection | DOAJ |
| description | Abstract 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 $$|a_*| > 1$$ |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-$$\sigma $$ σ . We discuss our results and possible systematic uncertainties in the model. |
| first_indexed | 2024-12-11T17:56:56Z |
| format | Article |
| id | doaj.art-26f5e73060e64dbc814ea5abb6809e5d |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-11T17:56:56Z |
| publishDate | 2020-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-26f5e73060e64dbc814ea5abb6809e5d2022-12-22T00:56:02ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522020-05-0180511210.1140/epjc/s10052-020-7998-3Relativistic reflection spectra of super-spinning black holesBiao Zhou0Ashutosh Tripathi1Askar B. Abdikamalov2Dimitry Ayzenberg3Cosimo Bambi4Sourabh Nampalliwar5Menglei Zhou6Center for Field Theory and Particle Physics and Department of Physics, Fudan UniversityCenter for Field Theory and Particle Physics and Department of Physics, Fudan UniversityCenter for Field Theory and Particle Physics and Department of Physics, Fudan UniversityCenter for Field Theory and Particle Physics and Department of Physics, Fudan UniversityCenter for Field Theory and Particle Physics and Department of Physics, Fudan UniversityTheoretical Astrophysics, Eberhard-Karls Universität TübingenCenter for Field Theory and Particle Physics and Department of Physics, Fudan UniversityAbstract 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 $$|a_*| > 1$$ |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-$$\sigma $$ σ . We discuss our results and possible systematic uncertainties in the model.http://link.springer.com/article/10.1140/epjc/s10052-020-7998-3 |
| spellingShingle | Biao Zhou Ashutosh Tripathi Askar B. Abdikamalov Dimitry Ayzenberg Cosimo Bambi Sourabh Nampalliwar Menglei Zhou Relativistic reflection spectra of super-spinning black holes European Physical Journal C: Particles and Fields |
| title | Relativistic reflection spectra of super-spinning black holes |
| title_full | Relativistic reflection spectra of super-spinning black holes |
| title_fullStr | Relativistic reflection spectra of super-spinning black holes |
| title_full_unstemmed | Relativistic reflection spectra of super-spinning black holes |
| title_short | Relativistic reflection spectra of super-spinning black holes |
| title_sort | relativistic reflection spectra of super spinning black holes |
| url | http://link.springer.com/article/10.1140/epjc/s10052-020-7998-3 |
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