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Nonspinning black holes in alternative theories of gravity

Author(s)
Yunes, Nicolas; Stein, Leo Chaim
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Abstract
We study two large classes of alternative theories, modifying the action through algebraic, quadratic curvature invariants coupled to scalar fields. We find one class that admits solutions that solve the vacuum Einstein equations and another that does not. In the latter, we find a deformation to the Schwarzschild metric that solves the modified field equations in the small-coupling approximation. We calculate the event horizon shift, the innermost stable circular orbit shift, and corrections to gravitational waves, mapping them to the parametrized post-Einsteinian framework.
Date issued
2011-05
URI
http://hdl.handle.net/1721.1/66214
Department
Massachusetts Institute of Technology. Department of Physics; MIT Kavli Institute for Astrophysics and Space Research
Journal
Physical review D
Publisher
American Physical Society
Citation
Yunes, Nicolás, and Leo Stein. “Nonspinning black holes in alternative theories of gravity.” Physical Review D 83, 104002 (2011): n. pag. © 2011 American Physical Society
Version: Final published version
ISSN
1550-7998
1550-2368

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