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arXiv · 2505.10141

Bayesian pulsar timing and noise analysis with Vela.jl: the wideband paradigm

Abhimanyu Susobhanan
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Abstract

Vela is a package for performing Bayesian pulsar timing & noise analysis written in Julia and Python. In the wideband paradigm of pulsar timing, simultaneous time of arrival and dispersion measure measurements are derived from a radio observation using frequency-resolved integrated pulse profiles and templates without splitting the observation into multiple frequency sub-bands. We describe the implementation of the wideband timing paradigm in Vela, and demonstrate its usage using the NANOGrav 12.5-year wideband data of PSR J1923+2515. Vela is the first software package to provide this functionality.

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Abhimanyu Susobhanan. 2025-05-15. Bayesian pulsar timing and noise analysis with Vela.jl: the wideband paradigm. https://arxiv.org/abs/2505.10141

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