학술논문
PINT: Maximum-likelihood estimation of pulsar timing noise parameters
Document Type
Working Paper
Author
Susobhanan, Abhimanyu; Kaplan, David; Archibald, Anne; Luo, Jing; Ray, Paul; Pennucci, Timothy; Ransom, Scott; Agazie, Gabriella; Fiore, William; Larsen, Bjorn; O'Neill, Patrick; van Haasteren, Rutger; Anumarlapudi, Akash; Bachetti, Matteo; Bhakta, Deven; Champagne, Chloe; Cromartie, H. Thankful; Demorest, Paul; Jennings, Ross; Kerr, Matthew; Levina, Sasha; McEwen, Alexander; Shapiro-Albert, Brent; Swiggum, Joseph
Source
Subject
Language
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 datasets. This framework enables the parameter estimation for both uncorrelated and correlated noise processes as well as the 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 datasets as well as a real dataset of PSR B1855+09. We also describe the new features implemented in PINT since it was first described in the literature.
Comment: Accepted for publication in ApJ
Comment: Accepted for publication in ApJ