Fast Radio Bursts in Space and Time

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High Energy Astrophysical Phenomena

Fast Radio Bursts in Space and Time

Limits on Fast Radio Burst-like Counterparts to Gamma-ray Bursts using CHIME/FRB

Fast radio bursts are a class of highly energetic, mostly extragalactic radio transients lasting for a few milliseconds.

While over 600 fast radio bursts have been published so far, their origins are presently unclear, with some theories for extragalactic fast radio bursts predicting accompanying high-energy emission.

In this work, we use the canadian hydrogen intensity mapping experiment (chime)fast radio burst (chime/frb)project to explore whether any fast radio burst-like radio emission coincides in space and time with 81 gamma-ray bursts (grbs) detected between 2018 and 2019. we do not find any statistically significant, coincident pairs within 3sigma of each other s spatial localization regions and within a time difference of up to one week.

In addition to searching for spatial matches between known fast radio bursts and known gamma-ray bursts, we use chime/frb to constrain fast radio burst-like radio emission before, at the time of, or after the reported high-energy emission at the position of 39 known gamma-ray bursts.

Our most constraining radio flux limits in the 400- to 800-mhz band for short gamma-raybursts (sgrbs) are <50 jy at 18.6 ks pre-high-energy emission, and <5 jy at 28.4 ks post-high-energy emission, assuming a 10-ms radio burst width with eachlimit valid for 60 seconds.

Authors

Alice P. Curtin, Shriharsh P. Tendulkar, Alexander Josephy, Pragya Chawla, Bridget Andersen, Victoria M. Kaspi, Mohit Bhardwaj, Tomas Cassanelli, Amanda Cook, Fengqiu Adam Dong, Emmanuel Fonseca, B. M. Gaensler, Jane F. Kaczmarek, Adam E. Lanmnan, Calvin Leung, Aaron B. Pearlman, Emily Petroff, Ziggy Pleunis, Masoud Rafiei-Ravandi, Scott M. Ransom

Related Topics

Chime / frb

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Keep Up With Latest Trending Papers. Computer Science, AI and Machine Learning and more.Subscribe

CC BY

Source arXiv

High Energy Astrophysical Phenomena

Fast Radio Bursts in Space and Time

Limits on Fast Radio Burst-like Counterparts to Gamma-ray Bursts using CHIME/FRB

Fast radio bursts are a class of highly energetic, mostly extragalactic radio transients lasting for a few milliseconds.

While over 600 fast radio bursts have been published so far, their origins are presently unclear, with some theories for extragalactic fast radio bursts predicting accompanying high-energy emission.

Authors

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