Reducing eccentricity in black-hole binary evolutions with initial parameters from post-Newtonian inspiral - General Relativity and Quantum CosmologyReportar como inadecuado




Reducing eccentricity in black-hole binary evolutions with initial parameters from post-Newtonian inspiral - General Relativity and Quantum Cosmology - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: Standard choices of quasi-circular orbit parameters for black-hole binaryevolutions result in eccentric inspiral. We introduce a conceptually simplemethod, which is to integrate the post-Newtonian equations of motion throughhundreds of orbits, and read off the values of the momenta at the separation atwhich we wish to start a fully general relativistic numerical evolution. Forthe particular case of non-spinning equal-mass inspiral with an initialcoordinate separation of $D = 11M$ we show that this approach reduces theeccentricity by at least a factor of five to $e < 0.002$ as compared to usingstandard quasi-circular initial parameters.



Autor: Sascha Husa, Mark Hannam, Jose A. Gonzalez, Ulrich Sperhake, Bernd Bruegmann

Fuente: https://arxiv.org/







Documentos relacionados