Quasinormal modes of Schwarzschild-like black hole surrounded by the pseudo-isothermal dark matter halo
The merger of binary black holes produces a series of decaying oscillations, during which energy is radiated in gravitational waves. The characteristic signal in the ringdown phase can be described by complex oscillation frequencies called quasinormal modes (QNMs). In this paper, we investigate the...
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| Language: | English |
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Elsevier
2025-01-01
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| Series: | Nuclear Physics B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0550321324003535 |
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| author | Yanqiang Liu Benrong Mu Jun Tao Yuling Weng |
| author_facet | Yanqiang Liu Benrong Mu Jun Tao Yuling Weng |
| author_sort | Yanqiang Liu |
| collection | DOAJ |
| description | The merger of binary black holes produces a series of decaying oscillations, during which energy is radiated in gravitational waves. The characteristic signal in the ringdown phase can be described by complex oscillation frequencies called quasinormal modes (QNMs). In this paper, we investigate the ringdown spectrum resulting from scalar field perturbations of black holes surrounded by pseudo-isothermal dark matter halos. The complex frequencies of these quasinormal modes are numerically computed using the 6th-order WKB with Padé average approximation. Additionally, the time evolution of the scalar perturbations is examined using the finite difference method, considering various multipole numbers and dark matter halo parameters. For a static, spherically symmetric black hole, the photon sphere—composed of circular null geodesics—plays a crucial role in analyzing the black hole shadow. Furthermore, the connection between the black hole shadow and QNMs is explored in the eikonal limit. |
| format | Article |
| id | doaj-art-ea3dba26398e49b78b75661feb9a302d |
| institution | Kabale University |
| issn | 0550-3213 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Physics B |
| spelling | doaj-art-ea3dba26398e49b78b75661feb9a302d2025-01-10T04:37:53ZengElsevierNuclear Physics B0550-32132025-01-011010116787Quasinormal modes of Schwarzschild-like black hole surrounded by the pseudo-isothermal dark matter haloYanqiang Liu0Benrong Mu1Jun Tao2Yuling Weng3Center for Theoretical Physics, College of Physics, Sichuan University, Chengdu, 610065, ChinaCenter for Joint Quantum Studies, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR ChinaCenter for Theoretical Physics, College of Physics, Sichuan University, Chengdu, 610065, China; Corresponding author.Center for Theoretical Physics, College of Physics, Sichuan University, Chengdu, 610065, ChinaThe merger of binary black holes produces a series of decaying oscillations, during which energy is radiated in gravitational waves. The characteristic signal in the ringdown phase can be described by complex oscillation frequencies called quasinormal modes (QNMs). In this paper, we investigate the ringdown spectrum resulting from scalar field perturbations of black holes surrounded by pseudo-isothermal dark matter halos. The complex frequencies of these quasinormal modes are numerically computed using the 6th-order WKB with Padé average approximation. Additionally, the time evolution of the scalar perturbations is examined using the finite difference method, considering various multipole numbers and dark matter halo parameters. For a static, spherically symmetric black hole, the photon sphere—composed of circular null geodesics—plays a crucial role in analyzing the black hole shadow. Furthermore, the connection between the black hole shadow and QNMs is explored in the eikonal limit.http://www.sciencedirect.com/science/article/pii/S0550321324003535 |
| spellingShingle | Yanqiang Liu Benrong Mu Jun Tao Yuling Weng Quasinormal modes of Schwarzschild-like black hole surrounded by the pseudo-isothermal dark matter halo Nuclear Physics B |
| title | Quasinormal modes of Schwarzschild-like black hole surrounded by the pseudo-isothermal dark matter halo |
| title_full | Quasinormal modes of Schwarzschild-like black hole surrounded by the pseudo-isothermal dark matter halo |
| title_fullStr | Quasinormal modes of Schwarzschild-like black hole surrounded by the pseudo-isothermal dark matter halo |
| title_full_unstemmed | Quasinormal modes of Schwarzschild-like black hole surrounded by the pseudo-isothermal dark matter halo |
| title_short | Quasinormal modes of Schwarzschild-like black hole surrounded by the pseudo-isothermal dark matter halo |
| title_sort | quasinormal modes of schwarzschild like black hole surrounded by the pseudo isothermal dark matter halo |
| url | http://www.sciencedirect.com/science/article/pii/S0550321324003535 |
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