2014/10/24 by Lorenzo De Vittori, L De Vittori, Achamveedu Gopakumar +5 · 1 citation
Physics and Astronomy · #Amplitude #Astronomy and Astrophysical Research #Cosmology and Gravitation Theories #Gravitational wave #Metric (unit) #Parametrization (atmospheric modeling) #Polarization (electrochemistry) #Pulsars and Gravitational Waves Research #Simple (philosophy) #astro-ph.HE #gr-qc
paper · pdf · doi:10.1088/1742-6596/610/1/012048
published in Journal of Physics Conference Series 610, 012048 (IOP Publishing) · 5 pages, 2 figures. Proceedings of the LISA Symposium X, University of Florida, Gainesville, May 18-23, 2014. To be published at the Journal of Physics
arxiv created 2014/10/24 · openalex publication_date 2015/05/11 · arxiv updated 2015/06/11 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We review a recently proposed approach to construct gravitational wave (GW) polarization states of unbound spinning compact binaries. Through this rather simple method, we are able to include corrections due to the dominant order spin-orbit interactions, in the quadrupolar approximation and in a semi-analytic way. We invoke the 1.5 post-Newtonian (PN) accurate quasi-Keplerian parametrization for the radial part of the dynamics and impose its temporal evolution in the PN accurate polarization states equations. Further, we compute 1PN accurate amplitude corrections for the polarization states of non-spinning compact binaries on hyperbolic orbits. As an interesting application, we perform comparisons with previously available results for both the GW signals in the case of non-spinning binaries and the theoretical prediction for the amplitude of the memory effect on the metric after the hyperbolic passage.