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Article
Report number	arXiv:1808.08962
Title	Black holes in an Effective Field Theory extension of GR
Related title	Erratum: Black Holes in an Effective Field Theory Extension of General Relativity [Phys. Rev. Lett. 121, 251105 (2018)]
Author(s)	Cardoso, Vitor (Lisbon, CENTRA ; Lisbon, CFTP ; CERN) ; Kimura, Masashi (Lisbon, CENTRA ; Lisbon, CFTP) ; Maselli, Andrea (Lisbon, CENTRA ; Lisbon, CFTP) ; Senatore, Leonardo (KIPAC, Menlo Park ; SLAC ; Stanford U., Phys. Dept.)
Publication	2018-12-21
Imprint	2018-08-27
Number of pages	6
Note	8 pages, RevTex4. v2: Minor edits. Accepted for publication in Physical Review Letters
In:	Phys. Rev. Lett.
DOI	10.1103/PhysRevLett.121.251105 10.1103/PhysRevLett.131.109903 (erratum)
Subject category	hep-th ; Particle Physics - Theory ; hep-ph ; Particle Physics - Phenomenology ; astro-ph.HE ; Astrophysics and Astronomy ; gr-qc ; General Relativity and Cosmology
Abstract	Effective field theory methods suggest that some rather-general extensions of General Relativity include, or are mimicked by, certain higher-order curvature corrections, with coupling constants expected to be small but otherwise arbitrary. Thus, the tantalizing prospect to test the fundamental nature of gravity with gravitational-wave observations, in a systematic way, emerges naturally. Here, we build black hole solutions in such a framework and study their main properties. Once rotation is included, we find the first purely gravitational example of geometries without $\mathbb{Z}_2$-symmetry. Despite the higher-order operators of the theory, we show that linearized fluctuations of such geometries obey second-order differential equations. We find nonzero tidal Love numbers. We study and compute the quasinormal modes of such geometries. These results are of interest to gravitational-wave science but also potentially relevant for electromagnetic observations of the galactic center or $X$-ray binaries.
Copyright/License	preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2018-2024 authors (License: CC-BY-4.0)

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