The Astrophysical Journal (Jan 2023)
CHIME/FRB Discovery of 25 Repeating Fast Radio Burst Sources
- The CHIME/FRB Collaboration,
- Bridget C. Andersen,
- Kevin Bandura,
- Mohit Bhardwaj,
- P. J. Boyle,
- Charanjot Brar,
- Tomas Cassanelli,
- S. Chatterjee,
- Pragya Chawla,
- Amanda M. Cook,
- Alice P. Curtin,
- Matt Dobbs,
- Fengqiu Adam Dong,
- Jakob T. Faber,
- Mateus Fandino,
- Emmanuel Fonseca,
- B. M. Gaensler,
- Utkarsh Giri,
- Antonio Herrera-Martin,
- Alex S. Hill,
- Adaeze Ibik,
- Alexander Josephy,
- Jane F. Kaczmarek,
- Zarif Kader,
- Victoria Kaspi,
- T. L. Landecker,
- Adam E. Lanman,
- Mattias Lazda,
- Calvin Leung,
- Hsiu-Hsien Lin,
- Kiyoshi W. Masui,
- Ryan Mckinven,
- Juan Mena-Parra,
- Bradley W. Meyers,
- D. Michilli,
- Cherry Ng,
- Ayush Pandhi,
- Aaron B. Pearlman,
- Ue-Li Pen,
- Emily Petroff,
- Ziggy Pleunis,
- Masoud Rafiei-Ravandi,
- Mubdi Rahman,
- Scott M. Ransom,
- Andre Renard,
- Ketan R. Sand,
- Pranav Sanghavi,
- Paul Scholz,
- Vishwangi Shah,
- Kaitlyn Shin,
- Seth Siegel,
- Kendrick Smith,
- Ingrid Stairs,
- Jianing Su,
- Shriharsh P. Tendulkar,
- Keith Vanderlinde,
- Haochen Wang,
- Dallas Wulf,
- Andrew Zwaniga
Affiliations
- The CHIME/FRB Collaboration
- Bridget C. Andersen
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Kevin Bandura
- ORCiD
- Lane Department of Computer Science and Electrical Engineering , 1220 Evansdale Drive, PO Box 6109 Morgantown, WV 26506, USA; Center for Gravitational Waves and Cosmology, West Virginia University , Chestnut Ridge Research Building, Morgantown, WV 26505, USA
- Mohit Bhardwaj
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada; Department of Physics, Carnegie Mellon University , 5000 Forbes Avenue, Pittsburgh 15213, PA, USA
- P. J. Boyle
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Charanjot Brar
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Tomas Cassanelli
- ORCiD
- Department of Electrical Engineering, Universidad de Chile , Av. Tupper 2007, Santiago 8370451, Chile
- S. Chatterjee
- ORCiD
- Department of Astronomy and Cornell Center for Astrophysics and Planetary Science, Cornell University , Ithaca, NY 14853, USA
- Pragya Chawla
- ORCiD
- Anton Pannekoek Institute for Astronomy, University of Amsterdam , Science Park 904, 1098 XH Amsterdam, The Netherlands
- Amanda M. Cook
- ORCiD
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada ; [email protected]; David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada
- Alice P. Curtin
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Matt Dobbs
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Fengqiu Adam Dong
- ORCiD
- Department of Physics and Astronomy, University of British Columbia , 6224 Agricultural Road, Vancouver, BC V6T 1Z1 Canada
- Jakob T. Faber
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Cahill Center for Astronomy and Astrophysics, MC 249-17 California Institute of Technology , Pasadena, CA 91125, USA
- Mateus Fandino
- ORCiD
- Department of Physics and Astronomy, University of British Columbia , 6224 Agricultural Road, Vancouver, BC V6T 1Z1 Canada; Department of Physical Sciences, Thompson Rivers University , Kamloops, BC, Canada
- Emmanuel Fonseca
- ORCiD
- Center for Gravitational Waves and Cosmology, West Virginia University , Chestnut Ridge Research Building, Morgantown, WV 26505, USA; Department of Physics and Astronomy, West Virginia University , P.O. Box 6315, Morgantown, WV 26506, USA
- B. M. Gaensler
- ORCiD
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada ; [email protected]; David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada
- Utkarsh Giri
- ORCiD
- Department of Physics, University of Wisconsin-Madison , Madison, WI 53706, USA
- Antonio Herrera-Martin
- ORCiD
- David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada
- Alex S. Hill
- ORCiD
- Department of Computer Science, Math, Physics, & Statistics, University of British Columbia , Kelowna, BC V1V 1V7, Canada; Dominion Radio Astrophysical Observatory, Herzberg Research Centre for Astronomy and Astrophysics, National Research Council Canada , PO Box 248, Penticton, BC V2A 6J9, Canada
- Adaeze Ibik
- ORCiD
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada ; [email protected]; David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada
- Alexander Josephy
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Jane F. Kaczmarek
- ORCiD
- Dominion Radio Astrophysical Observatory, Herzberg Research Centre for Astronomy and Astrophysics, National Research Council Canada , PO Box 248, Penticton, BC V2A 6J9, Canada
- Zarif Kader
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Victoria Kaspi
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- T. L. Landecker
- ORCiD
- Dominion Radio Astrophysical Observatory, Herzberg Research Centre for Astronomy and Astrophysics, National Research Council Canada , PO Box 248, Penticton, BC V2A 6J9, Canada
- Adam E. Lanman
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Mattias Lazda
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada
- Calvin Leung
- ORCiD
- MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , 77 Massachusetts Ave, Cambridge, MA 02139, USA; Department of Physics, Massachusetts Institute of Technology , 77 Massachusetts Ave, Cambridge, MA 02139, USA
- Hsiu-Hsien Lin
- ORCiD
- Institute of Astronomy and Astrophysics , Academia Sinica, Astronomy-Mathematics Building, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan; Canadian Institute for Theoretical Astrophysics , 60 St. George Street, Toronto, ON M5S 3H8, Canada
- Kiyoshi W. Masui
- ORCiD
- MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , 77 Massachusetts Ave, Cambridge, MA 02139, USA; Department of Physics, Massachusetts Institute of Technology , 77 Massachusetts Ave, Cambridge, MA 02139, USA
- Ryan Mckinven
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Juan Mena-Parra
- ORCiD
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada ; [email protected]; David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada
- Bradley W. Meyers
- ORCiD
- International Centre for Radio Astronomy Research (ICRAR), Curtin University , Bentley WA 6102 Australia
- D. Michilli
- ORCiD
- MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , 77 Massachusetts Ave, Cambridge, MA 02139, USA; Department of Physics, Massachusetts Institute of Technology , 77 Massachusetts Ave, Cambridge, MA 02139, USA
- Cherry Ng
- ORCiD
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada ; [email protected]
- Ayush Pandhi
- ORCiD
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada ; [email protected]; David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada
- Aaron B. Pearlman
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Ue-Li Pen
- ORCiD
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada ; [email protected]; Institute of Astronomy and Astrophysics , Academia Sinica, Astronomy-Mathematics Building, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan; Canadian Institute for Theoretical Astrophysics , 60 St. George Street, Toronto, ON M5S 3H8, Canada; Canadian Institute for Advanced Research, MaRS Centre, West Tower, 661 University Avenue , Suite 505, Canada; Perimeter Institute for Theoretical Physics , 31 Caroline Street N, Waterloo, ON N25 2YL, Canada
- Emily Petroff
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Ziggy Pleunis
- ORCiD
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada ; [email protected]
- Masoud Rafiei-Ravandi
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Mubdi Rahman
- ORCiD
- Sidrat Research , 124 Merton Street, Toronto, ON M4S 2Z2, Canada
- Scott M. Ransom
- ORCiD
- National Radio Astronomy Observatory , 520 Edgemont Rd, Charlottesville, VA 22903, USA
- Andre Renard
- ORCiD
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada ; [email protected]
- Ketan R. Sand
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Pranav Sanghavi
- ORCiD
- Department of Physics, Yale University , New Haven, CT 06520, USA
- Paul Scholz
- ORCiD
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada ; [email protected]
- Vishwangi Shah
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Kaitlyn Shin
- ORCiD
- MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , 77 Massachusetts Ave, Cambridge, MA 02139, USA; Department of Physics, Massachusetts Institute of Technology , 77 Massachusetts Ave, Cambridge, MA 02139, USA
- Seth Siegel
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Perimeter Institute for Theoretical Physics , 31 Caroline Street N, Waterloo, ON N25 2YL, Canada
- Kendrick Smith
- ORCiD
- Perimeter Institute for Theoretical Physics , 31 Caroline Street N, Waterloo, ON N25 2YL, Canada
- Ingrid Stairs
- ORCiD
- Department of Physics and Astronomy, University of British Columbia , 6224 Agricultural Road, Vancouver, BC V6T 1Z1 Canada
- Jianing Su
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada
- Shriharsh P. Tendulkar
- ORCiD
- Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research , Mumbai, 400005, India; National Centre for Radio Astrophysics , Post Bag 3, Ganeshkhind, Pune, 411007, India
- Keith Vanderlinde
- ORCiD
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada ; [email protected]; David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada
- Haochen Wang
- ORCiD
- MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , 77 Massachusetts Ave, Cambridge, MA 02139, USA; Department of Physics, Massachusetts Institute of Technology , 77 Massachusetts Ave, Cambridge, MA 02139, USA
- Dallas Wulf
- ORCiD
- Department of Physics, McGill University , 3600 rue University, Montréal, QC H3A 2T8, Canada; Trottier Space Institute, McGill University , 3550 rue University, Montréal, QC H3A 2A7, Canada
- Andrew Zwaniga
- ORCiD
- Department of Physics, Toronto Metropolitan University , 350 Victoria St, Toronto, ON M5B 2K3, Canada
- DOI
- https://doi.org/10.3847/1538-4357/acc6c1
- Journal volume & issue
-
Vol. 947,
no. 2
p. 83
Abstract
We present the discovery of 25 new repeating fast radio burst (FRB) sources found among CHIME/FRB events detected between 2019 September 30 and 2021 May 1. The sources were found using a new clustering algorithm that looks for multiple events colocated on the sky having similar dispersion measures (DMs). The new repeaters have DMs ranging from ∼220 to ∼1700 pc cm ^−3 , and include sources having exhibited as few as two bursts to as many as twelve. We report a statistically significant difference in both the DM and extragalactic DM (eDM) distributions between repeating and apparently nonrepeating sources, with repeaters having a lower mean DM and eDM, and we discuss the implications. We find no clear bimodality between the repetition rates of repeaters and upper limits on repetition from apparently nonrepeating sources after correcting for sensitivity and exposure effects, although some active repeating sources stand out as anomalous. We measure the repeater fraction over time and find that it tends to an equilibrium of ${2.6}_{-2.6}^{+2.9}$ % over our total time-on-sky thus far. We also report on 14 more sources, which are promising repeating FRB candidates and which merit follow-up observations for confirmation.
Keywords
