Rotating scalarized black holes in scalar couplings to two topological terms
The tachyonic instability of the Kerr black holes is analyzed in the Einstein-scalar theory with the quadratic scalar couplings to two topological terms which are parity-even Gauss-Bonnet and parity-odd Chern-Simons terms. For positive coupling α, we use the (2+1)-dimensional hyperboloidal foliation...
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Elsevier
2021-09-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269321004858 |
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doaj-a793d8798d504777bf0f0e4b4484d8072021-10-09T04:36:08ZengElsevierPhysics Letters B0370-26932021-09-01820136545Rotating scalarized black holes in scalar couplings to two topological termsDe-Cheng Zou0Yun Soo Myung1Center for Gravitation and Cosmology and College of Physical Science and Technology, Yangzhou University, Yangzhou 225009, ChinaInstitute of Basic Sciences and Department of Computer Simulation, Inje University Gimhae 50834, Republic of Korea; Corresponding author.The tachyonic instability of the Kerr black holes is analyzed in the Einstein-scalar theory with the quadratic scalar couplings to two topological terms which are parity-even Gauss-Bonnet and parity-odd Chern-Simons terms. For positive coupling α, we use the (2+1)-dimensional hyperboloidal foliation method to derive the threshold curve which is the boundary between stable and unstable Kerr black holes by considering a spherically symmetric scalar-mode perturbation. In case of negative coupling, a newly bound of a≥0.26 with a the rotation parameter is found for unstable Kerr black holes and its threshold curve is derived.http://www.sciencedirect.com/science/article/pii/S0370269321004858 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
De-Cheng Zou Yun Soo Myung |
| spellingShingle |
De-Cheng Zou Yun Soo Myung Rotating scalarized black holes in scalar couplings to two topological terms Physics Letters B |
| author_facet |
De-Cheng Zou Yun Soo Myung |
| author_sort |
De-Cheng Zou |
| title |
Rotating scalarized black holes in scalar couplings to two topological terms |
| title_short |
Rotating scalarized black holes in scalar couplings to two topological terms |
| title_full |
Rotating scalarized black holes in scalar couplings to two topological terms |
| title_fullStr |
Rotating scalarized black holes in scalar couplings to two topological terms |
| title_full_unstemmed |
Rotating scalarized black holes in scalar couplings to two topological terms |
| title_sort |
rotating scalarized black holes in scalar couplings to two topological terms |
| publisher |
Elsevier |
| series |
Physics Letters B |
| issn |
0370-2693 |
| publishDate |
2021-09-01 |
| description |
The tachyonic instability of the Kerr black holes is analyzed in the Einstein-scalar theory with the quadratic scalar couplings to two topological terms which are parity-even Gauss-Bonnet and parity-odd Chern-Simons terms. For positive coupling α, we use the (2+1)-dimensional hyperboloidal foliation method to derive the threshold curve which is the boundary between stable and unstable Kerr black holes by considering a spherically symmetric scalar-mode perturbation. In case of negative coupling, a newly bound of a≥0.26 with a the rotation parameter is found for unstable Kerr black holes and its threshold curve is derived. |
| url |
http://www.sciencedirect.com/science/article/pii/S0370269321004858 |
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AT dechengzou rotatingscalarizedblackholesinscalarcouplingstotwotopologicalterms AT yunsoomyung rotatingscalarizedblackholesinscalarcouplingstotwotopologicalterms |
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