21–25 nov. 2022
L2IT Toulouse
Fuseau horaire Europe/Paris

FastEMRIWaveforms: New tools for millihertz gravitational-wave data analysis

25 nov. 2022, 09:45
15m
L2IT Toulouse

L2IT Toulouse

Maison de la Recherche et de la Valorisation 75 Cours des Sciences 31062 Toulouse Cedex
In person talk Conference session 4

Orateur

Lorenzo Speri (Max Planck Institute for Gravitational physics (Albert Einstein Institute, AEI Potsdam))

Description

The observations of gravitational wave signals from extreme-mass-ratio inspirals (EMRIs) have a huge scientific potential for the LISA mission because the system's parameters will be constrained to unprecedented precision. However, high precision comes with new challenges. EMRIs are the only sources that combine the challenges of strong-field complexity with that of long-lived signals. The rapid generation of such signals is hindered by computing the $∼10^3-10^5$ harmonic modes in a fully relativistic waveform. In this talk, I will present the FastEMRIWaveforms (FEW) package, a collection of tools to build and analyze EMRI waveforms. I will discuss the construction of the overall framework; constituent modules; and the general methods used to accelerate EMRI waveforms, such as the exploitation of graphics processing units (GPUs). Finally, I will show that the FEW package enables the generation of fully relativistic waveforms on timescales useful for direct implementation in LISA data analysis algorithms.

Auteurs principaux

Lorenzo Speri (Max Planck Institute for Gravitational physics (Albert Einstein Institute, AEI Potsdam)) Michael Katz (AEI)

Documents de présentation