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EMRI_MC: A GPU-based code for Bayesian inference of EMRI waveforms

by Ippocratis D. Saltas, Roberto Oliveri

Submission summary

Authors (as registered SciPost users): Ippocratis Saltas
Submission information
Preprint Link: scipost_202411_00009v1  (pdf)
Code repository: https://zenodo.org/records/10204186
Date accepted: 2024-11-11
Date submitted: 2024-11-05 12:00
Submitted by: Saltas, Ippocratis
Submitted to: SciPost Physics Codebases
Ontological classification
Academic field: Physics
Specialties:
  • Gravitation, Cosmology and Astroparticle Physics
Approach: Computational

Abstract

We describe a simple and efficient Python code to perform Bayesian forecasting for gravitational waves (GW) produced by Extreme-Mass-Ratio-Inspiral systems (EMRIs). The code runs on GPUs for an efficient parallelised computation of thousands of waveforms and sampling of the posterior through a Markov-Chain-Monte-Carlo (MCMC) algorithm. EMRI_MC generates EMRI waveforms based on the so--called kludge scheme, and propagates it to the observer accounting for cosmological effects in the observed waveform due to modified gravity/dark energy. Extending the code to more accurate schemes for the generation of the waveform is straightforward. Despite the known limitations of the kludge formalism, we believe that the code can provide a helpful resource for the community working on forecasts for interferometry missions in the milli-Hz scale, predominantly, the satellite-mission LISA.

Current status:
Accepted in target Journal

Editorial decision: For Journal SciPost Physics Codebases: Publish
(status: Editorial decision fixed and (if required) accepted by authors)

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