Friday, February 22, 2013

1302.5249 (Andrea Maselli et al.)

MG13 proceedings: On the validity of the adiabatic approximation in
compact binary inspirals
   [PDF]

Andrea Maselli, Leonardo Gualtieri, Francesco Pannarale, Valeria Ferrari
We use the post-Newtonian-Affine model to assess the validity of the adiabatic approximation in modeling tidal effects in the phase evolution of compact binary systems. We compute the dynamical evolution of the tidal tensor, which we estimate at the 2 PN order, and of the quadrupole tensor, finding that their ratio, i.e. the tidal deformability, increases in the last phases of the inspiral. We derive the gravitational wave phase corrections due to this phenomenon and quantify how they affect gravitational wave detectability.
View original: http://arxiv.org/abs/1302.5249

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