Enrico Barausse
Slowly rotating black holes in Einstein-æther theory
Barausse, Enrico; Sotiriou, Thomas P.; Vega, Ian
Authors
Abstract
We study slowly rotating, asymptotically flat black holes in Einstein-æther theory and show that solutions that are free from naked finite area singularities form a two-parameter family. These parameters can be thought of as the mass and angular momentum of the black hole, while there are no independent æ ther charges. We also show that the æ ther has nonvanishing vorticity throughout the spacetime, as a result of which there is no hypersurface that resembles the universal horizon found in static, spherically symmetric solutions. Moreover, for experimentally viable choices of the coupling constants, the frame-dragging potential of our solutions only shows percent-level deviations from the corresponding quantities in General Relativity and Hořava gravity. Finally, we uncover and discuss several subtleties in the correspondence between Einstein-æther theory and Hořava gravity solutions in the c ω →∞ limit.
Citation
Barausse, E., Sotiriou, T. P., & Vega, I. (2016). Slowly rotating black holes in Einstein-æther theory. Physical Review D, 93(4), Article 44044. https://doi.org/10.1103/PhysRevD.93.044044
Journal Article Type | Article |
---|---|
Acceptance Date | Dec 31, 2015 |
Publication Date | Feb 16, 2016 |
Deposit Date | Dec 21, 2016 |
Publicly Available Date | Dec 21, 2016 |
Journal | Physical Review D |
Print ISSN | 2470-0010 |
Electronic ISSN | 2470-0029 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 93 |
Issue | 4 |
Article Number | 44044 |
DOI | https://doi.org/10.1103/PhysRevD.93.044044 |
Public URL | https://nottingham-repository.worktribe.com/output/776155 |
Publisher URL | http://dx.doi.org/10.1103/PhysRevD.93.044044 |
Additional Information | ©2016 American Physical Society |
Contract Date | Dec 21, 2016 |
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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf
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