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  Modeling dynamical scalarization with a resummed post-Newtonian expansion

Sennett, N., & Buonanno, A. (2016). Modeling dynamical scalarization with a resummed post-Newtonian expansion. Physical Review D, 93: 124004. doi:10.1103/PhysRevD.93.124004.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-7107-D Version Permalink: http://hdl.handle.net/21.11116/0000-0002-F9FB-B
Genre: Journal Article

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 Creators:
Sennett, Noah1, Author              
Buonanno, Alessandra1, Author              
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: Despite stringent constraints set by astrophysical observations, there remain viable scalar-tensor theories that could be distinguished from general relativity with gravitational-wave detectors. A promising signal predicted in these alternative theories is dynamical scalarization, which can dramatically affect the evolution of neutron-star binaries near merger. Motivated by the successful treatment of spontaneous scalarization, we develop a formalism that partially resums the post-Newtonian expansion to capture dynamical scalarization in a mathematically consistent manner. We calculate the post-Newtonian order corrections to the equations of motion and scalar mass of a binary system. Through comparison with quasi-equilibrium configuration calculations, we verify that this new approximation scheme can accurately predict the onset and magnitude of dynamical scalarization.

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 Dates: 2016-03-102016-03-13201620162016
 Publication Status: Published in print
 Pages: 24 pages, 8 figures; recolored figures, fixed typos, added email
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 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1603.03300
URI: http://arxiv.org/abs/1603.03300
DOI: 10.1103/PhysRevD.93.124004
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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 93 Sequence Number: 124004 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: /journals/resource/111088197762258