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Curtin, Alice P.; Sirota, Sloane; Kaspi, Victoria M.; Tendulkar, Shriharsh P.; Bhardwaj, Mohit; Cook, Amanda M.; Fong, Wen-Fai; Gaensler, B. M.; Main, Robert A.; Masui, Kiyoshi W.; Michilli, Daniele; Pandhi, Ayush; Pearlman, Aaron B.; Scholz, Paul; Shin, Kaitlyn

Constraining Near-simultaneous Radio Emission from Short Gamma-Ray Bursts Using CHIME/FRB

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  • Media type: E-Article
  • Title: Constraining Near-simultaneous Radio Emission from Short Gamma-Ray Bursts Using CHIME/FRB
  • Contributor: Curtin, Alice P.; Sirota, Sloane; Kaspi, Victoria M.; Tendulkar, Shriharsh P.; Bhardwaj, Mohit; Cook, Amanda M.; Fong, Wen-Fai; Gaensler, B. M.; Main, Robert A.; Masui, Kiyoshi W.; Michilli, Daniele; Pandhi, Ayush; Pearlman, Aaron B.; Scholz, Paul; Shin, Kaitlyn
  • Published: American Astronomical Society, 2024
  • Published in: The Astrophysical Journal, 972 (2024) 1, Seite 125
  • Language: Not determined
  • DOI: 10.3847/1538-4357/ad5c65
  • ISSN: 0004-637X; 1538-4357
  • Origination:
  • Footnote:
  • Description: Abstract We use the Canadian Hydrogen Intensity Mapping Experiment (CHIME) Fast Radio Burst (FRB) Project to search for FRBs that are temporally and spatially coincident with gamma-ray bursts (GRBs) occurring between 2018 July 7 and 2023 August 3. We do not find any temporal (within 1 week) and spatial (within overlapping 3σ localization regions) coincidences between any CHIME/FRB candidates and all GRBs with 1σ localization uncertainties <1°. As such, we use CHIME/FRB to constrain the possible FRB-like radio emission for 27 short gamma-ray bursts (SGRBs) that were within 17° of CHIME/FRB’s meridian at a point either 6 hr prior up to 12 hr after the high-energy emission. Two SGRBs, GRB 210909A and GRB 230208A, were above the horizon at CHIME at the time of their high-energy emission and we place some of the first constraints on simultaneous FRB-like radio emission from SGRBs. While neither of these two SGRBs have known redshifts, we construct a redshift range for each GRB based on their high-energy fluence and a derived SGRB energy distribution. For GRB 210909A, this redshift range corresponds to z = [0.009, 1.64] with a mean of z = 0.13. Thus, for GRB 210909A, we constrain the radio luminosity at the time of the high-energy emission to L < 2 × 1046 erg s−1, L < 5 × 1044 erg s−1, and L < 3 × 1042 erg s−1 assuming redshifts of z = 0.85, z = 0.16, and z = 0.013, respectively. We compare these constraints with the predicted simultaneous radio luminosities from different compact object merger models.
  • Access State: Open Access