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Bayesian pulsar timing and noise analysis with vela.jl: The wideband paradigm

Abhimanyu Susobhanan

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Phys. Rev. D 112, 063023 – Published 12 September, 2025

DOI: https://doi.org/10.1103/n3ck-lfdy

Abstract

vela.jl is a package for performing Bayesian pulsar timing and 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.jl, and demonstrate its usage using the NANOGrav 12.5-year wideband data of PSR J1923+2515. vela.jl is the first software package to provide this functionality.

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Phys. Rev. D 112, 063023– Published 12 September, 2025
  • Received 23 May 2025
  • Accepted 18 August 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Open access publication funded by the Max Planck Society.

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