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Linear perturbation analysis of hairy black holes in shift-symmetric Horndeski theories: Odd-parity perturbations
We analyze the mode stability of odd-parity perturbations of black holes with linearly time-dependent scalar hair in shift-symmetric Horndeski theories. We show that a large class of black hole solutions in these theories suffer from ghost or gradient instability, while there are some classes of sol...
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Published in: | Physical review. D 2017-01, Vol.95 (2), Article 024034 |
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Main Authors: | , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | We analyze the mode stability of odd-parity perturbations of black holes with linearly time-dependent scalar hair in shift-symmetric Horndeski theories. We show that a large class of black hole solutions in these theories suffer from ghost or gradient instability, while there are some classes of solutions that are stable under linear odd-parity perturbations in the context of mode analysis. |
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ISSN: | 2470-0010 2470-0029 |
DOI: | 10.1103/PhysRevD.95.024034 |