Gravitational Recoil during Binary Black Hole Coalescence using the Effective One Body Approach

Details Gravitational Recoil during Binary Black Hole Coalescence using the Effective One Body Approach Gravitational Recoil during Binary Black Hole Coalescence using the Effective One Body Approach

2006-02-28

arxiv.org/abs/gr-qc/0602117v2

Phys.Rev. D73 (2006) 124006

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

46 pages, new figures and discussions, to appear in PRD

Scientific paper

10.1103/PhysRevD.73.124006

Using the Effective One Body approach, that includes nonperturbative resummed estimates for the damping and conservative parts of the compact binary dynamics, we compute the recoil during the late inspiral and the subsequent plunge of non-spinning black holes of comparable masses moving in quasi-circular orbits. Further, using a prescription that smoothly connects the plunge phase to a perturbed single black hole, we obtain an estimate for the total recoil associated with the binary black hole coalescence. We show that the crucial physical feature which determines the magnitude of the terminal recoil is the presence of a ``burst'' of linear momentum flux emitted slightly before coalescence. When using the most natural expression for the linear momentum flux during the plunge, together with a Taylor-expanded $(v/c)^4$ correction factor, we find that the maximum value of the terminal recoil is $\sim 74$ km/s and occurs for a mass ratio $m_2/m_1 \simeq 0.38$. We comment, however, on the fact that the above `best bet estimate' is subject to strong uncertainties because the location and amplitude of the crucial peak of linear momentum flux happens at a moment during the plunge where most of the simplifying analytical assumptions underlying the Effective One Body approach are no longer justified. Changing the analytical way of estimating the linear momentum flux, we find maximum recoils that range between 49 and 172 km/s. (Abridged)

Affiliated with

Also associated with

No associations

Rating

Gravitational Recoil during Binary Black Hole Coalescence using the Effective One Body Approach 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 Gravitational Recoil during Binary Black Hole Coalescence using the Effective One Body Approach, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravitational Recoil during Binary Black Hole Coalescence using the Effective One Body Approach will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-388286