Revisiting wideband pulsar timing measurements
methods: data analysis; pulsars: general
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 J2124?3358 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. The Author(s) 2026. Published by Oxford University Press on behalf of Royal Astronomical Society.
Susobhanan, Abhimanyu; Paladi, Avinash Kumar; Desmecht, Ra; Amarnath; Bagchi, Manjari; Chakraborty, Manoneeta; Chowdhury, Shaswata; Das, Suruj Jyoti; Deb, Debabrata; Desai, Shantanu; Dwivedi, Churchil; Grover, Himanshu; Jose, Jibin; Joshi, Bhal Chandra; Kala, Shubham; Kareem, Fazal; Meena, Kuldeep; Mondal, Sushovan; Nobleson, K.; Pandian, B Arul; Rai, Kaustubh; Shukla, Adya; Singh, Manpreet; Srivastava, Aman; Surnis, Mayuresh; Tahbildar, Hemanga; Takahashi, Keitaro; Tarafdar, Pratik; Vara, Kunjal; Vyasraj, Vaishnavi; Zuraiq, Zenia
Monthly Notices of the Royal Astronomical Society;Volume;547;Issue;4;
All Open Access; Gold Open Access; Green Open Access
https://doi.org/10.1093/mnras/stag444 https://www.scopus.com/pages/publications/105036690637?origin=resultslist
Susobhanan A., MaxPlanckInstitut f Gravitationsphysik (AlbertEinsteinInstitut), Liebniz Universit Hannover, Callinstra 38, Hannover, D-30167, Germany, School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala P.O., Kerala, Thiruvananthapuram, 695551, India; Paladi A.K., MaxPlanckInstitut f Gravitationsphysik (AlbertEinsteinInstitut), Liebniz Universit Hannover, Callinstra 38, Hannover, D-30167, Germany, Department of Physics, Indian Institute of Science, C. V. Raman Avenue, Karnataka, Bengaluru, 560012, India; Desmecht R., MaxPlanckInstitut f Gravitationsphysik (AlbertEinsteinInstitut), Liebniz Universit Hannover, Callinstra 38, Hannover, D-30167, Germany, Vrije Universiteit Brussel, Pleinlaan 2, Brussels, B-1050, Belgium; Amarnath, Raman Research Institute, Karnataka, Bengaluru, 560080, India; Bagchi M., The Institute of Mathematical Sciences, C. I. T. Campus, Taramani, Tamil Nadu, Chennai, 600113, India, Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Maharashtra, Mumbai, 400094, India; Chakraborty M., Department of Astronomy, Astrophysics, and Space Engineering, Indian Institute of Technology Indore, Madhya Pradesh, Indore, 453552, India; Chowdhury S., The Institute of Mathematical Sciences, C. I. T. Campus, Taramani, Tamil Nadu, Chennai, 600113, India; Das S.J., Particle Theory and Cosmology Group, Center for Theoretical Physics of the Universe, Institute for Basic Science, Daejeon, 34126, South Korea; Deb D., Centre for Space Research, NorthWest University, Private Bag X6001, Potchefstroom, 2520, South Africa; Desai S., Department of Physics, Indian Institute of Technology Hyderabad, Kandi, Telangana, 502284, India; Dwivedi C., Astronomy and Astrophysics Division, Physical Research Laboratory, Thaltej Campus, Gujarat, Ahmedabad, 380059, India; Grover H., Department of Physics, Indian Institute of Technology Roorkee, Uttarakhand, Roorkee, 247667, India; Jose J., Department of Astronomy, Astrophysics, and Space Engineering, Indian Institute of Technology Indore, Madhya Pradesh, Indore, 453552, India; Joshi B.C., Department of Physics, Indian Institute of Technology Roorkee, Uttarakhand, Roorkee, 247667, India, National Centre for Radio Astrophysics, Savitribhai Phule Pune University Campus, Maharashtra, Pune, 411007, India; Kala S., The Institute of Mathematical Sciences, C. I. T. Campus, Taramani, Tamil Nadu, Chennai, 600113, India; Kareem F., MaxPlanckInstitut f Radioastronomie, Auf dem Hel 69, Bonn, D-53121, Germany; Meena K., UM DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidyanagari, Maharashtra, Mumbai, 400098, India; Mondal S., The Institute of Mathematical Sciences, C. I. T. Campus, Taramani, Tamil Nadu, Chennai, 600113, India, Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Maharashtra, Mumbai, 400094, India; Nobleson K., Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Kumamoto, 860-8555, Japan; Pandian B.A., Raman Research Institute, Karnataka, Bengaluru, 560080, India, Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India; Rai K., Department of Physics, Indian Institute of Science Education and Research Bhopal, Madhya Pradesh, Bhopal, 462066, India; Shukla A., Department of Physics, Indian Institute of Technology Roorkee, Uttarakhand, Roorkee, 247667, India; Singh M., Department of Physical Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, SAS Nagar, Punjab, Mohali, 140306, India; Srivastava A., Department of Physics, Indian Institute of Technology Hyderabad, Kandi, Telangana, 502284, India, Department of Physics, GLA University, Uttar Pradesh, Mathura, 281406, India; Surnis M., Department of Physics, Indian Institute of Science Education and Research Bhopal, Madhya Pradesh, Bhopal, 462066, India; Tahbildar H., Department of Physics, Indian Institute of Science Education and Research Bhopal, Madhya Pradesh, Bhopal, 462066, India; Takahashi K., Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Kumamoto, 860-8555, Japan; Tarafdar P., INAF Osservatorio Astronomico di Cagliari, via della Scienza 5, CA, Selargius, 09047, Italy; Vara K., Department of Physics, Indian Institute of Science Education and Research Bhopal, Madhya Pradesh, Bhopal, 462066, India; Vyasraj V., Department of Physics, Indian Institute of Technology Hyderabad, Kandi, Telangana, 502284, India; Zuraiq Z., Department of Physics, Indian Institute of Science, C. V. Raman Avenue, Karnataka, Bengaluru, 560012, India