Haochen Wang

PhD candidate


Curriculum vitae


Updating the First CHIME/FRB Catalog of Fast Radio Bursts with Baseband Data


Journal article


M. Amiri, B. Andersen, Shion Andrew, K. Bandura, M. Bhardwaj, P. Boyle, C. Brar, D. Breitman, T. Cassanelli, P. Chawla, A. Cook, A. Curtin, M. Dobbs, F. Dong, G. Eadie, E. Fonseca, B. Gaensler, U. Giri, Antonio Herrera-Martín, Hans Hopkins, A. Ibik, R. C. Joseph, J. Kaczmarek, Zarif Kader, V. Kaspi, A. Lanman, M. Lazda, C. Leung, Siqi Liu, K. Masui, R. Mckinven, J. Mena-Parra, M. Merryfield, D. Michilli, C. Ng, K. Nimmo, Gavin Noble, A. Pandhi, C. Patel, A. Pearlman, Ue-Li Pen, E. Petroff, Z. Pleunis, M. Rafiei-Ravandi, Mubdi Rahman, S. Ransom, K. R. Sand, P. Scholz, V. Shah, K. Shin, Yuliya Shpunarska, Seth R. Siegel, Kendrick Smith, I. Stairs, D. Stenning, K. Vanderlinde, Haochen Wang, Henry White, D. Wulf
Astrophysical Journal, 2023

Semantic Scholar ArXiv DOI
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APA   Click to copy
Amiri, M., Andersen, B., Andrew, S., Bandura, K., Bhardwaj, M., Boyle, P., … Wulf, D. (2023). Updating the First CHIME/FRB Catalog of Fast Radio Bursts with Baseband Data. Astrophysical Journal.


Chicago/Turabian   Click to copy
Amiri, M., B. Andersen, Shion Andrew, K. Bandura, M. Bhardwaj, P. Boyle, C. Brar, et al. “Updating the First CHIME/FRB Catalog of Fast Radio Bursts with Baseband Data.” Astrophysical Journal (2023).


MLA   Click to copy
Amiri, M., et al. “Updating the First CHIME/FRB Catalog of Fast Radio Bursts with Baseband Data.” Astrophysical Journal, 2023.


BibTeX   Click to copy

@article{m2023a,
  title = {Updating the First CHIME/FRB Catalog of Fast Radio Bursts with Baseband Data},
  year = {2023},
  journal = {Astrophysical Journal},
  author = {Amiri, M. and Andersen, B. and Andrew, Shion and Bandura, K. and Bhardwaj, M. and Boyle, P. and Brar, C. and Breitman, D. and Cassanelli, T. and Chawla, P. and Cook, A. and Curtin, A. and Dobbs, M. and Dong, F. and Eadie, G. and Fonseca, E. and Gaensler, B. and Giri, U. and Herrera-Martín, Antonio and Hopkins, Hans and Ibik, A. and Joseph, R. C. and Kaczmarek, J. and Kader, Zarif and Kaspi, V. and Lanman, A. and Lazda, M. and Leung, C. and Liu, Siqi and Masui, K. and Mckinven, R. and Mena-Parra, J. and Merryfield, M. and Michilli, D. and Ng, C. and Nimmo, K. and Noble, Gavin and Pandhi, A. and Patel, C. and Pearlman, A. and Pen, Ue-Li and Petroff, E. and Pleunis, Z. and Rafiei-Ravandi, M. and Rahman, Mubdi and Ransom, S. and Sand, K. R. and Scholz, P. and Shah, V. and Shin, K. and Shpunarska, Yuliya and Siegel, Seth R. and Smith, Kendrick and Stairs, I. and Stenning, D. and Vanderlinde, K. and Wang, Haochen and White, Henry and Wulf, D.}
}

Abstract

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 ratios of the bursts and to localize them to subarcminute precision. The improved localizations are also used to correct the beam response of the instrument and to measure fluxes and fluences with an ∼10% uncertainty. Additionally, the time resolution is increased by 3 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 data set 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.


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