3 papers
astro-ph.CO2026
The NANOGrav 15 yr Data Set: Impacts of Customized Chromatic Noise Models on Gravitational Wave Analyses
Nikita Agarwal, Gabriella Agazie, Alessandra Amosso +120
We report updated nHz gravitational wave (GW) significance, characterization, and interpretations using the customized chromatic-noise models (CNMs) developed in Larsen, Baier et a…
stat.ME2025
Escaping Neal's Funnel: a multi-stage sampling method for hierarchical models
Aiden Gundersen, Neil J. Cornish
Neal's funnel refers to an exponential tapering in probability densities common to Bayesian hierarchical models. Usual sampling methods, such as Markov Chain Monte Carlo, struggle…
gr-qc2024
Rapid inference for individual binaries and a stochastic background with pulsar timing array data
Aiden Gundersen, Neil J. Cornish
The analysis of pulsar timing array data has provided evidence for a gravitational wave background in the nanohertz band. This raises the question of what is the source of the sign…