Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2011-11-28
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
15 pages, 1 table, 3 figures. Minor changes to match the version published on Phys. Rev. D
Scientific paper
We develop a semi-analytical approach, based on the post-Newtonian expansion and on the affine approximation, to model the tidal deformation of neutron stars in the coalescence of black hole-neutron star or neutron star-neutron star binaries. Our equations describe, in a unified framework, both the system orbital evolution, and the neutron star deformations. These are driven by the tidal tensor, which we expand at 1/c^3 post-Newtonian order, including spin terms. We test the theoretical framework by simulating black hole-neutron star coalescence up to the onset of mass shedding, which we determine by comparing the shape of the star with the Roche lobe. We validate our approach by comparing our results with those of fully relativistic, numerical simulations.
Ferrari Valeria
Gualtieri Leonardo
Maselli Alessandro
No associations
LandOfFree
Tidal interaction in compact binaries: a post-Newtonian affine framework 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 Tidal interaction in compact binaries: a post-Newtonian affine framework, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tidal interaction in compact binaries: a post-Newtonian affine framework will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-13129