Updating the first CHIME/FRB catalog of fast radio bursts with baseband data
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| Format: | Preprint |
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2023
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| author | FRB Collaboration Amiri, Mandana Andersen, Bridget C. Andrew, Shion Bandura, Kevin Bhardwaj, Mohit Boyle, P. J. Brar, Charanjot Breitman, Daniela Cassanelli, Tomas Chawla, Pragya Cook, Amanda M. Curtin, Alice P. Dobbs, Matt Dong, Fengqiu Adam Eadie, Gwendolyn Fonseca, Emmanuel Gaensler, B. M. Giri, Utkarsh Herrera-Martin, Antonio Hopkins, Hans Ibik, Adaeze L. Joseph, Ronniy C. Kaczmarek, J. F. Kader, Zarif Kaspi, Victoria M. Lanman, Adam E. Lazda, Mattias Leung, Calvin Liu, Siqi Masui, Kiyoshi W. Mckinven, Ryan Mena-Parra, Juan Merryfield, Marcus Michilli, Daniele Ng, Cherry Nimmo, Kenzie Noble, Gavin Pandhi, Ayush Patel, Chitrang Pearlman, Aaron B. Pen, Ue-Li Petroff, Emily Pleunis, Ziggy Rafiei-Ravandi, Masoud Rahman, Mubdi Ransom, Scott M. Sand, Ketan R. Scholz, Paul Shah, Vishwangi Shin, Kaitlyn Shpunarska, Yuliya Siegel, Seth R. Smith, Kendrick Stairs, Ingrid Stenning, David C. Vanderlinde, Keith Wang, Haochen White, Henry Wulf, Dallas |
| author_facet | FRB Collaboration Amiri, Mandana Andersen, Bridget C. Andrew, Shion Bandura, Kevin Bhardwaj, Mohit Boyle, P. J. Brar, Charanjot Breitman, Daniela Cassanelli, Tomas Chawla, Pragya Cook, Amanda M. Curtin, Alice P. Dobbs, Matt Dong, Fengqiu Adam Eadie, Gwendolyn Fonseca, Emmanuel Gaensler, B. M. Giri, Utkarsh Herrera-Martin, Antonio Hopkins, Hans Ibik, Adaeze L. Joseph, Ronniy C. Kaczmarek, J. F. Kader, Zarif Kaspi, Victoria M. Lanman, Adam E. Lazda, Mattias Leung, Calvin Liu, Siqi Masui, Kiyoshi W. Mckinven, Ryan Mena-Parra, Juan Merryfield, Marcus Michilli, Daniele Ng, Cherry Nimmo, Kenzie Noble, Gavin Pandhi, Ayush Patel, Chitrang Pearlman, Aaron B. Pen, Ue-Li Petroff, Emily Pleunis, Ziggy Rafiei-Ravandi, Masoud Rahman, Mubdi Ransom, Scott M. Sand, Ketan R. Scholz, Paul Shah, Vishwangi Shin, Kaitlyn Shpunarska, Yuliya Siegel, Seth R. Smith, Kendrick Stairs, Ingrid Stenning, David C. Vanderlinde, Keith Wang, Haochen White, Henry Wulf, Dallas |
| contents | In 2021, a catalog of 536 fast radio bursts (FRBs) detected with the Canadian Hydrogen Intensity Mapping Experiment (CHIME) radio telescope was released by the CHIME/FRB Collaboration. This large collection of bursts, observed with a single instrument and uniform selection effects, has advanced our understanding of the FRB population. Here we update the results for 140 of these FRBs for which channelized raw voltage ('baseband') data are available. With the voltages measured by the telescope's antennas, it is possible to maximize the telescope sensitivity in any direction within the primary beam, an operation called 'beamforming'. This allows us to increase the signal-to-noise ratio (S/N) of the bursts and to localize them to sub-arcminute precision. The improved localization is also used to correct the beam response of the instrument and to measure fluxes and fluences with a ~10% uncertainty. Additionally, the time resolution is increased by three orders of magnitude relative to that in the first CHIME/FRB catalog, and, applying coherent dedispersion, burst morphologies can be studied in detail. Polarization information is also available for the full sample of 140 FRBs, providing an unprecedented dataset to study the polarization properties of the population. We release the baseband data beamformed to the most probable position of each FRB. These data are analyzed in detail in a series of accompanying papers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_00111 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Updating the first CHIME/FRB catalog of fast radio bursts with baseband data FRB Collaboration Amiri, Mandana Andersen, Bridget C. Andrew, Shion Bandura, Kevin Bhardwaj, Mohit Boyle, P. J. Brar, Charanjot Breitman, Daniela Cassanelli, Tomas Chawla, Pragya Cook, Amanda M. Curtin, Alice P. Dobbs, Matt Dong, Fengqiu Adam Eadie, Gwendolyn Fonseca, Emmanuel Gaensler, B. M. Giri, Utkarsh Herrera-Martin, Antonio Hopkins, Hans Ibik, Adaeze L. Joseph, Ronniy C. Kaczmarek, J. F. Kader, Zarif Kaspi, Victoria M. Lanman, Adam E. Lazda, Mattias Leung, Calvin Liu, Siqi Masui, Kiyoshi W. Mckinven, Ryan Mena-Parra, Juan Merryfield, Marcus Michilli, Daniele Ng, Cherry Nimmo, Kenzie Noble, Gavin Pandhi, Ayush Patel, Chitrang Pearlman, Aaron B. Pen, Ue-Li Petroff, Emily Pleunis, Ziggy Rafiei-Ravandi, Masoud Rahman, Mubdi Ransom, Scott M. Sand, Ketan R. Scholz, Paul Shah, Vishwangi Shin, Kaitlyn Shpunarska, Yuliya Siegel, Seth R. Smith, Kendrick Stairs, Ingrid Stenning, David C. Vanderlinde, Keith Wang, Haochen White, Henry Wulf, Dallas High Energy Astrophysical Phenomena In 2021, a catalog of 536 fast radio bursts (FRBs) detected with the Canadian Hydrogen Intensity Mapping Experiment (CHIME) radio telescope was released by the CHIME/FRB Collaboration. This large collection of bursts, observed with a single instrument and uniform selection effects, has advanced our understanding of the FRB population. Here we update the results for 140 of these FRBs for which channelized raw voltage ('baseband') data are available. With the voltages measured by the telescope's antennas, it is possible to maximize the telescope sensitivity in any direction within the primary beam, an operation called 'beamforming'. This allows us to increase the signal-to-noise ratio (S/N) of the bursts and to localize them to sub-arcminute precision. The improved localization is also used to correct the beam response of the instrument and to measure fluxes and fluences with a ~10% uncertainty. Additionally, the time resolution is increased by three orders of magnitude relative to that in the first CHIME/FRB catalog, and, applying coherent dedispersion, burst morphologies can be studied in detail. Polarization information is also available for the full sample of 140 FRBs, providing an unprecedented dataset to study the polarization properties of the population. We release the baseband data beamformed to the most probable position of each FRB. These data are analyzed in detail in a series of accompanying papers. |
| title | Updating the first CHIME/FRB catalog of fast radio bursts with baseband data |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2311.00111 |