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Evolving metric perturbations in dynamical Chern-Simons gravity

Okounkova, Maria and Scheel, Mark A. and Teukolsky, Saul A. (2019) Evolving metric perturbations in dynamical Chern-Simons gravity. Physical Review D, 99 (4). Art. No. 044019. ISSN 2470-0010. https://resolver.caltech.edu/CaltechAUTHORS:20190215-112239838

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Abstract

The stability of rotating black holes in dynamical Chern-Simons gravity (dCS) is an open question. To study this issue, we evolve the leading-order metric perturbation in order-reduced dynamical Chern-Simons gravity. The source is the leading-order dCS scalar field coupled to the spacetime curvature of a rotating black hole background. We use a well-posed, constraint-preserving scheme. We find that the leading-order metric perturbation numerically exhibits linear growth, but that the level of this growth converges to zero with numerical resolution. This analysis shows that spinning black holes in dCS gravity are numerically stable to leading-order perturbations in the metric.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/PhysRevD.99.044019DOIArticle
https://arxiv.org/abs/1811.10713arXivDiscussion Paper
ORCID:
AuthorORCID
Okounkova, Maria0000-0001-7869-5496
Teukolsky, Saul A.0000-0001-9765-4526
Additional Information:© 2019 American Physical Society. Received 26 November 2018; published 14 February 2019. We would like to thank Leo Stein for helpful discussions, providing us with the code used to generate the initial data in [26], and careful reading of this manuscript. We would also like to thank Luis Lehner for suggesting this project. This work was supported in part by the Sherman Fairchild Foundation and National Science Foundation Grants No. PHY-1708212 and No. PHY-1708213 at Caltech and No. PHY-1606654 at Cornell. Computations were performed using the Spectral Einstein Code [21]. All computations were performed on the Wheeler cluster at Caltech, which is supported by the Sherman Fairchild Foundation and by Caltech.
Group:Walter Burke Institute for Theoretical Physics, Astronomy Department
Funders:
Funding AgencyGrant Number
Sherman Fairchild FoundationUNSPECIFIED
NSFPHY-1708212
NSFPHY-1708213
NSFPHY-1606654
Issue or Number:4
Record Number:CaltechAUTHORS:20190215-112239838
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190215-112239838
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:92955
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:19 Feb 2019 22:47
Last Modified:22 Nov 2019 09:58

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