Enhanced x-ray emission coinciding with giant radio pulses from the Crab Pulsar

Date
2021
Author
Ray, Paul S.
Guver, Tolga
Ho, Wynn C. G.
Malacaria, Christian
Majid, Walid A.
Enoto, Teruaki
Terasawa, Toshio
Kisaka, Shota
Hu, Chin-Ping
Guillot, Sebastien
Lewandowska, Natalia
Jaisawal, Gaurava K.
Foster, Rick
Murata, Yasuhiro
Takeuchi, Hiroshi
Takefuji, Kazuhiro
Sekido, Mamoru
Yonekura, Yoshinori
Misawa, Hiroaki
Tsuchiya, Fuminori
Aoki, Takahiko
Tokumaru, Munetoshi
Honma, Mareki
Kameya, Osamu
Oyama, Tomoaki
Asano, Katsuaki
Shibata, Shinpei
Tanaka, Shuta J.
Bogdanov, Slavko
Kenyon, Steve
Soong, Yang
Markwardt, Craig B.
Wadiasingh, Zorawar
Gendreau, Keith C.
Arzoumanian, Zaven
Okajima, Takashi
Harding, Alice K.
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Abstract
Giant radio pulses (GRPs) are sporadic bursts emitted by some pulsars that last a few microseconds and are hundreds to thousands of times brighter than regular pulses from these sources. The only GRP-associated emission outside of radio wavelengths is from the Crab Pulsar, where optical emission is enhanced by a few percentage points during GRPs. We observed the Crab Pulsar simultaneously at x-ray and radio wavelengths, finding enhancement of the x-ray emission by 3.8 +/- 0.7% (a 5.4 sigma detection) coinciding with GRPs. This implies that the total emitted energy from GRPs is tens to hundreds of times higher than previously known. We discuss the implications for the pulsar emission mechanism and extragalactic fast radio bursts.
URI
http://hdl.handle.net/20.500.12627/173987
https://doi.org/10.1126/science.abd4659
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