Physics
Scientific paper
Feb 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aps..aprq11006l&link_type=abstract
American Physical Society, APS April Meeting 2010, February 13-16, 2010, abstract #Q11.006
Physics
Scientific paper
The low-frequency part of the gravitational wave signal of binary neutron star inspirals can potentially yield robust information on the nuclear equation of state. The influence of a star's internal structure on the waveform is characterized by a single parameter: the tidal deformability λ, which measures the star's quadrupole deformation in response to the companion's perturbing tidal field. We calculate λ for a wide range of equations of state and find that the value of λ spans an order of magnitude for the range of equation of state models considered. An analysis of the feasibility of discriminating between neutron star equations of state with gravitational wave observations of the early part of the inspiral reveals that the measurement error in λ increases steeply with the total mass of the binary. Comparing the errors with the expected range of λ, we find that Advanced LIGO observations of binaries at a distance of 100 Mpc will probe only unusually stiff equations of state, while the proposed Einstein Telescope is likely to see a clean tidal signature. )
Hinderer Tanja
Lackey Benjamin
Lang Ryan
Read Jocelyn
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