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

Detecting gravitational waves from extreme mass ratio inspirals using convolutional neural networks

25 nov. 2022, 09:30
15m
L2IT Toulouse

L2IT Toulouse

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

Orateur

Xue-Ting Zhang (School of Physics and Astronomy, Sun Yat-sen University)

Description

Extreme mass ratio inspirals (EMRIs) are among the most interesting gravitational wave (GW) sources for space-borne GW detectors. However, successful GW data analysis remains challenging due to many issues, ranging from the difficulty of modeling accurate waveforms, to the impractically large template bank required by the traditional matched filtering search method. In this work, we introduce a proof of principle approach for EMRI detection based on convolutional neural networks (CNNs). We demonstrate the performance with simulated EMRI signals buried in Gaussian noise. We show that over a wide range of physical parameters, the network is effective for EMRI systems with a signal-to-noise ratio larger than 50, and the performance is most strongly related to the signal-to-noise ratio. The method also shows good generalization ability toward different waveform models. Our study reveals the potential applicability of machine learning technology like CNNs toward more realistic EMRI data analysis.

Auteurs principaux

Man Leong Chan (Fukuoka University) Chris Messenger (University of Glasgow) Jian-dong Zhang (Sun Yat-sen University) Natalia Korsakova (APC) Xue-Ting Zhang (School of Physics and Astronomy, Sun Yat-sen University) Yi-Ming Hu (Sun Yat-sen University )

Documents de présentation