PINT: Maximum-likelihood Estimation of Pulsar Timing Noise Parameters
Abstract PINT is a pure-Python framework for high-precision pulsar timing developed on top of widely used and well-tested Python libraries, supporting both interactive and programmatic data analysis workflows. We present a new frequentist framework within PINT to characterize the single-pulsar noise processes present in pulsar timing data sets. This framework enables parameter estimation for both uncorrelated and correlated noise processes, as well as model comparison between different timing and noise models in a computationally inexpensive way. We demonstrate the efficacy of the new framework by applying it to simulated data sets as well as a real data set of PSR B1855+09. We also describe the new features implemented in PINT since it was first described in the literature.
Authors
- Bjorn Larsen (ORCID: https://orcid.org/0000-0001-6436-8216)
- H. Thankful Cromartie (ORCID: https://orcid.org/0000-0002-6039-692X)
- Alexander McEwen (ORCID: https://orcid.org/0000-0001-5481-7559)
- Chloe A. Champagne (ORCID: https://orcid.org/0000-0001-5438-540X)
- Deven Bhakta (ORCID: https://orcid.org/0000-0002-7965-3076)
- S. M. Ransom (ORCID: https://orcid.org/0000-0001-5799-9714)
- Akash Anumarlapudi (ORCID: https://orcid.org/0000-0002-8935-9882)
- David L. Kaplan (ORCID: https://orcid.org/0000-0001-6295-2881)
- Anne M. Archibald (ORCID: https://orcid.org/0000-0003-0638-3340)
- William Fiore (ORCID: https://orcid.org/0000-0001-5645-5336)
- Abhimanyu Susobhanan (ORCID: https://orcid.org/0000-0002-2820-0931)
- Patrick M. O'Neill (ORCID: https://orcid.org/0009-0009-2567-1533)
- Brent J. Shapiro-Albert (ORCID: https://orcid.org/0000-0002-7283-1124)
- Timothy T. Pennucci (ORCID: https://orcid.org/0000-0001-5465-2889)
- Rutger van Haasteren (ORCID: https://orcid.org/0000-0002-6428-2620)
- Ross J. Jennings (ORCID: https://orcid.org/0000-0003-1082-2342)
- Paul B. Demorest (ORCID: https://orcid.org/0000-0002-6664-965X)
- Matthew T. Kerr (ORCID: https://orcid.org/0000-0002-0893-4073)
- Paul S. Ray (ORCID: https://orcid.org/0000-0002-5297-5278)
- Matteo Bachetti (ORCID: https://orcid.org/0000-0002-4576-9337)
- Jing Luo (ORCID: https://orcid.org/0000-0001-5373-5914)
- Gabriella Agazie (ORCID: https://orcid.org/0000-0001-5134-3925)
- Joseph K. Swiggum (ORCID: https://orcid.org/0000-0002-1075-3837)
- Sasha Levina (ORCID: https://orcid.org/0000-0003-1241-7615)
Publication Details
- Journal
- The Astrophysical Journal
- Published
- 2024-08-01
- DOI
- https://doi.org/10.3847/1538-4357/ad59f7
- Citations
- 16
- Primary Topic
- GNSS positioning and interference
- Type
- article
- Field-Weighted Citation Impact
- 20.78
Funders
- National Science Foundation
- Office of Naval Research