30–31 May 2024
Wigner Datacenter - HUN-REN Wigner Research Centre for Physics
Europe/Budapest timezone

Numerical Analysis of Mismatch Between Eccentric Gravitational Wave Modeling Numerical Codes

30 May 2024, 17:35
25m
Wigner Datacenter - HUN-REN Wigner Research Centre for Physics

Wigner Datacenter - HUN-REN Wigner Research Centre for Physics

HUN-REN Wigner RCP 1121 Budapest, Konkoly-Thege Miklós rd 29-33, Hungary
Lecture Session IV

Speaker

Balázs Kacskovics (Wigner Research Centre for Physics)

Description

  1. This study employed two numerical models: the CBwaves and SEOBNRE algorithms, based on the post-Newtonian and effective-one-body approaches for binary black holes evolving on eccentric orbits. A total of 20,000 new simulations were performed for non-spinning configurations, and 240,000 simulations for aligned- and non-aligned spin configurations on a common grid of parameter values over the parameter space spanned by the mass ratio, $q\equiv m_1/m_2$, with values ranging from 0.1 to 1. The input parameters are the gravitational mass $m_i$ of each component, labeled by $i$, which is in the range $10~\mathrm{M}_\odot$ to $100~\mathrm{M}_\odot$, the corresponding spin magnitude $S_i$, which is in the range 0 to 0.6, and a constant initial orbital eccentricity $e_{0}$. In order to complete the task in a relatively short time frame, we employed an HTCondor cluster to execute multiple evaluations in parallel. In this talk, I will present our results, including the contour maps of the mismatch.

Primary author

Balázs Kacskovics (Wigner Research Centre for Physics)

Presentation materials