MG14 - Talk detail |
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Participant |
Herdeiro, Carlos | |||||||
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Institution |
Aveiro University - Campus de Santiago - Aveiro - N/A - Portugal | |||||||
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Session |
BH4 |
Accepted |
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Talk |
Oral abstract |
Title |
Scalar hair around asymptotically flat black holes | |||||
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Abstract |
There are many no-scalar-hair theorems and simultaneously various type of black hole solutions with scalar hair (and no gauge fields) in asymptotically flat spacetimes. I will make a brief overview of these solutions organized in classes of the assumption violated of a paradigmatic no-scalar-hair theorem. In particular I will discuss how violating the assumption that the scalar field and the geometry share the same symmetries, leads to a new family of hairy black holes -- Kerr black holes with scalar hair --, the connection between these solutions and the superradiant instability as well as some phenomenological properties. References: C. Herdeiro and E. Radu, Asymptotically flat black holes with scalar hair: a review, IJMPD Vol. 24, No. 9 (2015) 1542014, arXiv:1504.08209 [gr-qc] C.A.R.Herdeiro and E.Radu, Kerr black holes with scalar hair, Phys. Rev. Lett. 112 (2014) 221101, arXiv:1403.2757 [gr-qc]. C. Herdeiro and E. Radu, Construction and physical properties of Kerr black holes with scalar hair, To appear in CQG, arXiv:1501.04319 [gr-qc]. |
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Pdf file |
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Session |
BS1 |
Accepted |
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Order |
Time |
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Talk |
Oral abstract |
Title |
Asymptotically flat boson stars and stationary black holes with harmonic scalar hair in D=4,5 | |||||
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Abstract |
I will describe families of asymptotically flat black hole solutions that connect continuously to boson stars in D= 4 (Kerr black holes with scalar hair) and D=5 (Myers-Perry black holes with scalar hair and a mass gap). Similarities and differences between these two different examples will be described and educated guesses about generalizations will be put forward. References: C.A.R.Herdeiro and E.Radu, Kerr black holes with scalar hair, Phys. Rev. Lett. 112 (2014) 221101, arXiv:1403.2757 [gr-qc]. C.A.R.Herdeiro and E.Radu, A new spin on black hole hair, Int. J. Mod. Phys. D 23 (2014) 12, 1442014, arXiv:1405.3696 [gr-qc]. Y.Brihaye, C.Herdeiro and E.Radu, Myers–Perry black holes with scalar hair and a mass gap, Phys. Lett. B739 (2014) 1, arXiv:1408.5581 [gr-qc]. |
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Pdf file |
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