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Subarcminute localization of 13 repeating fast radio bursts detected by CHIME/FRB

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.3847/1538-4357/accf89
AuthorSearch for: ORCID identifier: https://orcid.org/0000-0002-2551-7554; Search for: ORCID identifier: https://orcid.org/0000-0002-3615-3514; Search for: ORCID identifier: https://orcid.org/0000-0002-1800-8233; Search for: ORCID identifier: https://orcid.org/0000-0002-3382-9558; Search for: ORCID identifier: https://orcid.org/0000-0001-9345-0307; Search for: ORCID identifier: https://orcid.org/0000-0002-8139-8414; Search for: ORCID identifier: https://orcid.org/0000-0002-4279-6946; Search for: ORCID identifier: https://orcid.org/0000-0001-7348-6900; Search for: ORCID identifier: https://orcid.org/0000-0002-3616-5160; Search for: ORCID identifier: https://orcid.org/0000-0003-3367-1073; Search for: ORCID identifier: https://orcid.org/0000-0003-3154-3676; Search for: ORCID identifier: https://orcid.org/0000-0002-7374-7119; Search for: ORCID identifier: https://orcid.org/0000-0002-6823-2073; Search for: ORCID identifier: https://orcid.org/0000-0003-2631-6217; Search for: ORCID identifier: https://orcid.org/0000-0001-9784-8670; Search for: ORCID identifier: https://orcid.org/0000-0003-2047-5276; Search for: ORCID identifier: https://orcid.org/0000-0001-6422-8125; Search for: ORCID identifier: https://orcid.org/0000-0001-7166-6422; Search for: ORCID identifier: https://orcid.org/0000-0003-4098-5222; Search for: ORCID identifier: https://orcid.org/0000-0001-8384-5049; Search for: ORCID identifier: https://orcid.org/0000-0003-2405-2967; Search for: 1ORCID identifier: https://orcid.org/0000-0003-4810-7803; Search for: ORCID identifier: https://orcid.org/0000-0002-4209-7408; Search for: ORCID identifier: https://orcid.org/0000-0002-8912-0732; Search for: ORCID identifier: https://orcid.org/0000-0002-9822-8008; Search for: ORCID identifier: https://orcid.org/0000-0002-4795-697X; Search for: ORCID identifier: https://orcid.org/0000-0001-7694-6650; Search for: ORCID identifier: https://orcid.org/0000-0001-5504-229X; Search for: ORCID identifier: https://orcid.org/0000-0002-4543-4588; Search for: ORCID identifier: https://orcid.org/0000-0003-2548-2926
Affiliation
  1. National Research Council of Canada. Herzberg Astronomy and Astrophysics
FormatText, Article
Subjectradio transient sources; radio burst; pulsar; magnetosphere
Abstract
We report on improved sky localizations of 13 repeating fast radio bursts (FRBs) discovered by CHIME/FRB via the use of interferometric techniques on channelized voltages from the telescope. These so-called "baseband localizations"improve the localization uncertainty area presented in past studies by more than three orders of magnitude. The improved localization regions are provided for the full sample of FRBs to enable follow-up studies. The localization uncertainties, together with the limits on the source distances from their dispersion measures, allow us to identify likely host galaxies for two of the FRB sources. FRB 20180814A lives in a massive passive red spiral at z ∼0.068 with very little indication of star formation, while FRB 20190303A resides in a merging pair of spiral galaxies at z ∼0.064 undergoing significant star formation. These galaxies show very different characteristics, further confirming the presence of FRB progenitors in a variety of environments even among the repeating subclass.
Publication date
PublisherAmerican Astronomical Society
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In
  • The Astrophysical Journal 950, no. 2, 134 (20 June 2023): 1–12.
LanguageEnglish
Peer reviewedYes
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Record identifier17ce829b-c526-41e1-adf8-ef7909e1db61
Record created2024-07-31
Record modified2024-08-01
Date modified: