A Search for High-energy Counterparts of Fast Radio Bursts
- 1Guizhou Normal University
- 2Chinese Academy of Sciences
- 3University of Chinese Academy of Sciences
Abstract
The fast radio burst FRB 200428, detected from the Galactic magnetar SGR J1935+2154 together with a contemporaneous X-ray burst, provided the first direct evidence that at least some FRBs originate from magnetars. Whether high-energy emission commonly accompanies other FRBs, however, remains unclear. Here, we perform a systematic search for high-energy counterparts to 336 FRBs from the CHIME/FRB burst catalog using Fermi/Gamma-ray Burst Monitor data in the 8–200 keV and 8–1000 keV bands. We find no statistically significant high-energy signal temporally associated with these events, and a stacked light-curve analysis likewise reveals no significant excess. We therefore derive 1024, 100, and 64 ms upper limits on the associated high-energy emission, typically at the level of ∼10 ⁻⁸ –10 ⁻⁷ erg cm ⁻² s ⁻¹ . These results place population-level constraints on the associated high-energy emission of FRBs and suggest that any such emission is either intrinsically weak, strongly dependent on geometry or burst conditions, or below the sensitivity of current instruments.
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BibTeX
@article{zhang2026search,
title = {{A Search for High-energy Counterparts of Fast Radio Bursts}},
author = {Yang Zhang and Yan-Qiu Zhang and Shuo Xiao and Yue Wang and Yi Wen and Shao-Wei Xiong and Tong-Lei Liao and Zheng-Huo Jiang and Zi-Yi You and Dao-Yi Zhang and Shi-Jie Zhang and Shi-Qi Wei},
journal = {The Astrophysical Journal},
year = {2026},
month = oct,
doi = {10.3847/1538-4357/aea074},
url = {https://iopscience.iop.org/article/10.3847/1538-4357/aea074},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - A Search for High-energy Counterparts of Fast Radio Bursts
AU - Yang Zhang
AU - Yan-Qiu Zhang
AU - Shuo Xiao
AU - Yue Wang
AU - Yi Wen
AU - Shao-Wei Xiong
AU - Tong-Lei Liao
AU - Zheng-Huo Jiang
AU - Zi-Yi You
AU - Dao-Yi Zhang
AU - Shi-Jie Zhang
AU - Shi-Qi Wei
PY - 2026
DA - 2026/10/07
JO - The Astrophysical Journal
DO - 10.3847/1538-4357/aea074
UR - https://iopscience.iop.org/article/10.3847/1538-4357/aea074
AB - The fast radio burst FRB 200428, detected from the Galactic magnetar SGR J1935+2154 together with a contemporaneous X-ray burst, provided the first direct evidence that at least some FRBs originate from magnetars. Whether high-energy emission commonly accompanies other FRBs, however, remains unclear. Here, we perform a systematic search for high-energy counterparts to 336 FRBs from the CHIME/FRB burst catalog using Fermi/Gamma-ray Burst Monitor data in the 8–200 keV and 8–1000 keV bands. We find no statistically significant high-energy signal temporally associated with these events, and a stacked light-curve analysis likewise reveals no significant excess. We therefore derive 1024, 100, and 64 ms upper limits on the associated high-energy emission, typically at the level of ∼10 ⁻⁸ –10 ⁻⁷ erg cm ⁻² s ⁻¹ . These results place population-level constraints on the associated high-energy emission of FRBs and suggest that any such emission is either intrinsically weak, strongly dependent on geometry or burst conditions, or below the sensitivity of current instruments.
SN - 0004-637X
SN - 1538-4357
ER -