Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2010-09-02
Phys.Rev.Lett.105:261101,2010
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
4 pages, 2 figures. Version published in Phys. Rev. Lett
Scientific paper
10.1103/PhysRevLett.105.261101
To detect the gravitational-wave (GW) signal from binary neutron stars and extract information about the equation of state of matter at nuclear density, it is necessary to match the signal with a bank of accurate templates. We present the two longest (to date) general-relativistic simulations of equal-mass binary neutron stars with different compactnesses, C=0.12 and C=0.14, and compare them with a tidal extension of the effective-one-body (EOB)model. The typical numerical phasing errors over the $\simeq 22$ GW cycles are $\Delta \phi\simeq \pm 0.24$ rad. By calibrating only one parameter (representing a higher-order amplification of tidal effects), the EOB model can reproduce, within the numerical error, the two numerical waveforms essentially up to the merger. By contrast, the third post-Newtonian Taylor-T4 approximant with leading-order tidal corrections dephases with respect to the numerical waveforms by several radians.
Baiotti Luca
Damour Thibault
Giacomazzo Bruno
Nagar Alessandro
Rezzolla Luciano
No associations
LandOfFree
Analytic modelling of tidal effects in the relativistic inspiral of binary neutron stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Analytic modelling of tidal effects in the relativistic inspiral of binary neutron stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analytic modelling of tidal effects in the relativistic inspiral of binary neutron stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-377161