Multipolar analysis of spinning binaries

Abstract

We present a preliminary study of the multipolar structure of gravitational radiation from spinning black hole binary mergers. We consider three different spinning binary configurations: (1) one "hang-up" run, where the black holes have equal masses and large spins initially aligned with the orbital angular momentum; (2) seven "spin-flip" runs, where the holes have a mass ratio q=4, the spins are anti-aligned with the orbital angular momentum, and the initial Kerr parameters of the holes j_1=j_2=j_i are fine-tuned to produce a Schwarzschild remnant after merger; (3) three "super-kick" runs where the mass ratio q=M_1/M_2=1, 2, 4 and the spins of the two holes are initially located on the orbital plane, pointing in opposite directions. For all of these simulations we compute the multipolar energy distribution and the Kerr parameter of the final hole. For the hang-up run, we show that including leading-order spin-orbit and spin-spin terms in a multipolar decomposition of the post-Newtonian waveforms improves the agreement with the numerical simulation.

corrected minor typos in Eqs.(2),(3); final version accepted by CQG

References in corpus (11)

• Inspiral, merger and ringdown of unequal mass black hole binaries: a multipolar analysis
• Supermassive recoil velocities for binary black-hole mergers with antialigned spins
• Phenomenological template family for black-hole coalescence waveforms
• Matched-filtering and parameter estimation of ringdown waveforms
• Exploring black hole superkicks
• High-spin binary black hole mergers
• Where post-Newtonian and numerical-relativity waveforms meet
• Using Full Information When Computing Modes of Post-Newtonian Waveforms From Inspiralling Compact Binaries in Circular Orbit
• Reducing phase error in long numerical binary black hole evolutions with sixth order finite differencing
• Anatomy of the binary black hole recoil: A multipolar analysis
• Eccentric binary black-hole mergers: The transition from inspiral to plunge in general relativity

Cited by in corpus (3)

• On the final spin from the coalescence of two black holes
• Comparison between numerical-relativity and post-Newtonian waveforms from spinning binaries: the orbital hang-up case
• Eccentric binary black-hole mergers: The transition from inspiral to plunge in general relativity