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astro-ph.IM2026
Approximating the statistics of a gravitational wave background
Mikel Falxa
The astrophysical origin of the gravitational wave background (GWB) reported by pulsar timing array (PTA) collaborations has yet to be confirmed. A GWB signal made of the sum of in…
astro-ph.IM2025
Modeling Non-Gaussianities in Pulsar Timing Array data analysis using Gaussian Mixture Models
Mikel Falxa, Alberto Sesana
In Pulsar Timing Array (PTA) data analysis, noise is typically assumed to be Gaussian, and the marginalized likelihood has a well-established analytical form derived within the fra…
astro-ph.IM2022★ 8 cited
Adaptive Kernel Density Estimation proposal in gravitational wave data analysis
Mikel Falxa, Stanislav Babak, Maude Le Jeune
Markov Chain Monte Carlo approach is frequently used within Bayesian framework to sample the target posterior distribution. Its efficiency strongly depends on the proposal used to…