7–12 Jul 2024
Aurum, the ‘Gabriele d’Annunzio’ University and ICRANet
Europe/Rome timezone

Bayesian parameter estimation of continuous gravitational waves from known pulsars

11 Jul 2024, 15:55
18m
Lab. A (Palazzo Micara of the ‘Gabriele d’Annunzio’ University)

Lab. A

Palazzo Micara of the ‘Gabriele d’Annunzio’ University

Viale Pindaro, 42, Pescara
Talk in a parallel session Multi-messenger astronomy with gravitational waves Multi-messenger astronomy with gravitational waves

Speaker

Anjana Ashok (Max Planck Institute for Gravitational Physics (AEI), Hannover)

Description

Continuous gravitational wave (CW) searches targeted at known pulsars utilize electromagnetic observations of the sources to infer the phase-evolution parameters of the gravitational wave signal. We present a new method to perform Bayesian estimation of the amplitude parameters of a CW signal. The method leverages the well-established CW detection statistic, the F-statistic, and modern stochastic samplers to build Bayesian posteriors of the unknown signal parameters. After testing the method, we apply it on putative gravitational wave signals from PSR J1526-2744, a recently-discovered milli-second pulsar.

Primary author

Anjana Ashok (Max Planck Institute for Gravitational Physics (AEI), Hannover)

Co-authors

Prof. Maria Alessandra Papa (Max Planck Institute for Gravitational Physics) Dr Pep Covas Vidal (Max Planck Institute for Gravitational Physics) Dr Reinhard Prix (Max Planck Institute for Gravitational Physics)

Presentation materials