de.mpg.escidoc.pubman.appbase.FacesBean
Deutsch

Hilfe Wegweiser Impressum Kontakt Einloggen

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Analytic modelling of tidal effects in the relativistic inspiral of binary neutron stars

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons20670

Rezzolla,  Luciano
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

Externe Ressourcen
Es sind keine Externen Ressourcen verfügbar
Volltexte (frei zugänglich)

1009.0521
(Preprint), 540KB

PRL105_261101.pdf
(beliebiger Volltext), 909KB

Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Baiotti, L., Damour, T., Giacomazzo, B., Nagar, A., & Rezzolla, L. (2010). Analytic modelling of tidal effects in the relativistic inspiral of binary neutron stars. Physical Review Letters, 105: 261101. doi: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.