Revisiting wideband pulsar timing measurements
Instrumentation and Methods for Astrophysics
2026-03-25 v3 High Energy Astrophysical Phenomena
Abstract
In the wideband paradigm of pulsar timing, the time of arrival of a pulsar pulse is measured simultaneously with the corresponding dispersion measure from a frequency-resolved integrated pulse profile. We present a new method for performing wideband measurements that rigorously accounts for measurement noise. We demonstrate this method using observations of PSR J21243358 made as part of the Indian Pulsar Timing Array experiment using the upgraded Giant Metre-wave Radio Telescope, and show that our method produces more realistic measurement uncertainty estimates compared to the existing wideband measurement method.
Keywords
Cite
@article{arxiv.2512.01288,
title = {Revisiting wideband pulsar timing measurements},
author = {Abhimanyu Susobhanan and Avinash Kumar Paladi and Réka Desmecht and Amarnath and Manjari Bagchi and Manoneeta Chakraborty and Shaswata Chowdhury and Suruj Jyoti Das and Debabrata Deb and Shantanu Desai and Churchil Dwivedi and Himanshu Grover and Jibin Jose and Bhal Chandra Joshi and Shubham Kala and Fazal Kareem and Kuldeep Meena and Sushovan Mondal and K Nobleson and Arul Pandian B and Kaustubh Rai and Adya Shukla and Manpreet Singh and Aman Srivastava and Mayuresh Surnis and Hemanga Tahbildar and Keitaro Takahashi and Pratik Tarafdar and Kunjal Vara and Vaishnavi Vyasraj and Zenia Zuraiq},
journal= {arXiv preprint arXiv:2512.01288},
year = {2026}
}
Comments
Accepted for publication in MNRAS