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

doi:10.1126/science.abd4659

GSTDTAP > 气候变化

DOI	10.1126/science.abd4659
	Enhanced x-ray emission coinciding with giant radio pulses from the Crab Pulsar
	Teruaki Enoto; Toshio Terasawa; Shota Kisaka; Chin-Ping Hu; Sebastien Guillot; Natalia Lewandowska; Christian Malacaria; Paul S. Ray; Wynn C.G. Ho; Alice K. Harding; Takashi Okajima; Zaven Arzoumanian; Keith C. Gendreau; Zorawar Wadiasingh; Craig B. Markwardt; Yang Soong; Steve Kenyon; Slavko Bogdanov; Walid A. Majid; Tolga Güver; Gaurava K. Jaisawal; Rick Foster; Yasuhiro Murata; Hiroshi Takeuchi; Kazuhiro Takefuji; Mamoru Sekido; Yoshinori Yonekura; Hiroaki Misawa; Fuminori Tsuchiya; Takahiko Aoki; Munetoshi Tokumaru; Mareki Honma; Osamu Kameya; Tomoaki Oyama; Katsuaki Asano; Shinpei Shibata; Shuta J. Tanaka
	2021-04-09
发表期刊	Science
出版年	2021
英文摘要	Pulsars are spinning, magnetized neutron stars that are observed as a regular sequence of radio pulses. Most pulses are of consistent intensity, but occasionally one is brighter by orders of magnitude. The cause of these unpredictable giant radio pulses (GRPs) is unknown. Enoto et al. observed the Crab Pulsar simultaneously with x-ray and radio telescopes. They found that x-ray emission during GRPs was slightly brighter than that during normal pulses. Comparing the radio and x-ray enhancements provides constraints on the GRP emission mechanism and the possible connections with other transient radio phenomena. Science , this issue p. [187][1] 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 5.4σ 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. [1]: /lookup/doi/10.1126/science.abd4659
领域	气候变化 ; 资源环境
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/322098
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Teruaki Enoto,Toshio Terasawa,Shota Kisaka,et al. Enhanced x-ray emission coinciding with giant radio pulses from the Crab Pulsar[J]. Science,2021.
APA	Teruaki Enoto.,Toshio Terasawa.,Shota Kisaka.,Chin-Ping Hu.,Sebastien Guillot.,...&Shuta J. Tanaka.(2021).Enhanced x-ray emission coinciding with giant radio pulses from the Crab Pulsar.Science.
MLA	Teruaki Enoto,et al."Enhanced x-ray emission coinciding with giant radio pulses from the Crab Pulsar".Science (2021).