Revisiting wideband pulsar timing measurements
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866914418403573760 |
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| author | Susobhanan, Abhimanyu Paladi, Avinash Kumar Desmecht, Réka 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 B, Arul Pandian Rai, Kaustubh Shukla, Adya Singh, Manpreet Srivastava, Aman Surnis, Mayuresh Tahbildar, Hemanga Takahashi, Keitaro Tarafdar, Pratik Vara, Kunjal Vyasraj, Vaishnavi Zuraiq, Zenia |
| author_facet | Susobhanan, Abhimanyu Paladi, Avinash Kumar Desmecht, Réka 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 B, Arul Pandian Rai, Kaustubh Shukla, Adya Singh, Manpreet Srivastava, Aman Surnis, Mayuresh Tahbildar, Hemanga Takahashi, Keitaro Tarafdar, Pratik Vara, Kunjal Vyasraj, Vaishnavi Zuraiq, Zenia |
| contents | 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$-$3358 made as part of the Indian Pulsar Timing Array experiment using the upgraded Giant Metre-wave Radio Telescope, and show that our method produces more realistic measurement uncertainty estimates compared to the existing wideband measurement method. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_01288 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Revisiting wideband pulsar timing measurements Susobhanan, Abhimanyu Paladi, Avinash Kumar Desmecht, Réka Amarnath Bagchi, Manjari Chakraborty, Manoneeta Chowdhury, Shaswata Das, Suruj Jyoti Deb, Debabrata Desai, Shantanu Dwivedi, Churchil Grover, Himanshu Jose, Jibin Joshi, Bhal Chandra Kala, Shubham Kareem, Fazal Meena, Kuldeep Mondal, Sushovan Nobleson, K B, Arul Pandian Rai, Kaustubh Shukla, Adya Singh, Manpreet Srivastava, Aman Surnis, Mayuresh Tahbildar, Hemanga Takahashi, Keitaro Tarafdar, Pratik Vara, Kunjal Vyasraj, Vaishnavi Zuraiq, Zenia Instrumentation and Methods for Astrophysics High Energy Astrophysical Phenomena In the wideband paradigm of pulsar timing, the time of arrival of a pulsar pulse is measured simultaneously with the corresponding dispersion measure from a frequency-resolved integrated pulse profile. We present a new method for performing wideband measurements that rigorously accounts for measurement noise. We demonstrate this method using observations of PSR J2124$-$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. |
| title | Revisiting wideband pulsar timing measurements |
| topic | Instrumentation and Methods for Astrophysics High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2512.01288 |