Late Inspiral and Merger of Binary Black Holes in Scalar-Tensor Theories of Gravity

Autor:	Healy, James, Bode, Tanja, Haas, Roland, Pazos, Enrique, Laguna, Pablo, Shoemaker, Deirdre M., Yunes, Nicolás
Rok vydání:	2011
Předmět:	General Relativity and Quantum Cosmology Astrophysics - Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
DOI:	10.1088/0264-9381/29/23/232002
Popis:	Gravitational wave observations will probe non-linear gravitational interactions and thus enable strong tests of Einstein's theory of general relativity. We present a numerical relativity study of the late inspiral and merger of binary black holes in scalar-tensor theories of gravity. We consider black hole binaries in an inhomogeneous scalar field, specifically binaries inside a scalar field bubble, in some cases with a potential. We calculate the emission of dipole radiation. We also show how these configurations trigger detectable differences between gravitational waves in scalar-tensor gravity and the corresponding waves in general relativity. We conclude that, barring an external mechanism to induce dynamics in the scalar field, scalar-tensor gravity binary black holes alone are not capable of awaking a dormant scalar field, and are thus observationally indistinguishable from their general relativistic counterparts. Comment: 4 pages, 5 figures, 1 table
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1112.3928 Zobrazit plný text záznamu View this record from Arxiv