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  Matter effects on binary neutron star waveforms

Read, J., Baiotti, L., Creighton, J. D. E., Friedman, J. L., Giacomazzo, B., Kyutoku, K., et al. (2013). Matter effects on binary neutron star waveforms. Physical Review D, 88: 044042. doi:10.1103/PhysRevD.88.044042.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-13B6-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-13B7-B
Genre: Journal Article

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 Creators:
Read, Jocelyn1, Author              
Baiotti, Luca, Author
Creighton, Jolien D. E., Author
Friedman, John L., Author
Giacomazzo, B.1, Author              
Kyutoku, Koutarou, Author
Markakis, Charalampos, Author
Rezzolla, Luciano1, Author              
Shibata, Masaru, Author
Taniguchi, Keisuke, Author
Affiliations:
1Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24013              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
 Abstract: Using an extended set of equations of state and a multiple-group multiple-code collaborative effort to generate waveforms, we improve numerical-relativity-based data-analysis estimates of the measurability of matter effects in neutron-star binaries. We vary two parameters of a parameterized piecewise-polytropic equation of state (EOS) to analyze the measurability of EOS properties, via a parameter {\Lambda} that characterizes the quadrupole deformability of an isolated neutron star. We find that, to within the accuracy of the simulations, the departure of the waveform from point-particle (or spinless double black-hole binary) inspiral increases monotonically with {\Lambda}, and changes in the EOS that did not change {\Lambda} are not measurable. We estimate with two methods the minimal and expected measurability of {\Lambda} in second- and third- generation gravitational-wave detectors. The first estimate, using numerical waveforms alone, shows two EOS which vary in radius by 1.3km are distinguishable in mergers at 100Mpc. The second estimate relies on the construction of hybrid waveforms by matching to post-Newtonian inspiral, and estimates that the same EOS are distinguishable in mergers at 300Mpc. We calculate systematic errors arising from numerical uncertainties and hybrid construction, and we estimate the frequency at which such effects would interfere with template-based searches.

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 Dates: 2013-06-172013
 Publication Status: Published in print
 Pages: 21 pages, 13 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1306.4065
DOI: 10.1103/PhysRevD.88.044042
URI: http://arxiv.org/abs/1306.4065
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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: 88 Sequence Number: 044042 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: /journals/resource/111088197762258