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Memory Effect from Spinning Unbound Binaries


De Vittori, Lorenzo; Gopakumar, Achamveedu; Gupta, Anuradha; Jetzer, Philippe (2015). Memory Effect from Spinning Unbound Binaries. In: Sopuerta, Carlos F. Astrophysics and Space Science Proceedings. Switzerland: Springer, 259-266.

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 × 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.

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 × 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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Additional indexing

Item Type:Book Section, not refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:May 2015
Deposited On:09 Feb 2016 15:13
Last Modified:01 Nov 2016 01:01
Publisher:Springer
ISBN:978-3-319-10487-4
Additional Information:Chapter: Gravitational Wave Astrophysics
Publisher DOI:https://doi.org/10.1007/978-3-319-10488-1_22

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