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      Memory effect from spinning unbound binaries

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          Abstract

          We present a recently developed prescription to obtain ready-to-use gravitational wave (GW) polarization states for spinning compact binaries on hyperbolic orbits. We include leading order spin-orbit interactions, invoking 1.5PN-accurate quasi-Keplerian parametrization for the radial part of the orbital dynamics. We also include radiation reaction effects on \(h_+\) and \(h_{\times}\) during the interaction. In the GW signals from spinning binaries there is evidence of the memory effect in both polarizations, in contrast to the non-spinning case, where only the cross polarizations exhibits non-vanishing amplitudes at infinite time. We also compute 1PN-accurate GW polarization states for non-spinning compact binaries in unbound orbits in a fully parametric way, and compare them with existing waveforms.

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          Author and article information

          Journal
          24 October 2014
          Article
          10.1007/978-3-319-10488-1_22
          1410.6605
          6a1fe1d8-0aab-4fe7-9223-9048121c20df

          http://arxiv.org/licenses/nonexclusive-distrib/1.0/

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          7 pages, 2 figures. To appear in the Proceedings of the 2014 Sant Cugat Forum on Astrophysics. Astrophysics and Space Science Proceedings, ed. C.Sopuerta (Berlin: Springer-Verlag)
          gr-qc astro-ph.HE

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