Gamma-ray glow preceding downward terrestrial gamma-ray flash

被引：57

作者：

Wada, Yuuki ^{[1
,2
,3
]}

Enoto, Teruaki ^{[2
,4
,5
]}

Nakamura, Yoshitaka ^{[6
]}

Furuta, Yoshihiro ^{[7
]}

Yuasa, Takayuki ^{[8
]}

Nakazawa, Kazuhiro ^{[9
]}

Morimoto, Takeshi ^{[10
]}

Sato, Mitsuteru ^{[11
]}

Matsumoto, Takahiro ^{[1
]}

Yonetoku, Daisuke ^{[12
]}

Sawano, Tatsuya ^{[12
]}

Sakai, Hideo ^{[13
]}

Kamogawa, Masashi ^{[14
]}

Ushio, Tomoo ^{[15
]}

Makishima, Kazuo ^{[1
,2
,16
]}

Tsuchiya, Harufumi ^{[17
]}

机构：

[1] Univ Tokyo, Grad Sch Sci, Dept Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138654, Japan

[2] RIKEN, Nishina Ctr, High Energy Astrophys Lab, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

[3] Univ Paris Diderot, Lab AstroParticule & Cosmol, CNRS IN2P3, CEA DRF IRFU,Observ Paris, 10 Rue Alice Domon & Leonie Duquet, F-75013 Paris, France

[4] Kyoto Univ, Hakubi Ctr Adv Res, Sakyo Ku, Kitashirakawa Oiwake Cho, Kyoto 6068302, Japan

[5] Kyoto Univ, Dept Astron, Sakyo Ku, Kitashirakawa Oiwake Cho, Kyoto 6068302, Japan

[6] Kobe City Coll Technol, Dept Elect Engn, Nishi Ku, 8-3 Gakuen Higashimachi, Kobe, Hyogo 6512194, Japan

[7] Japan Atom Energy Agcy, Collaborat Labs Adv Decommissioning Sci, 2-4 Shirakata, Tokai, Ibaraki 3191195, Japan

[8] Block 4B,Boon Tiong Rd, Singapore 165004, Singapore

[9] Nagoya Univ, Kobayashi Maskawa Inst Origin Particles & Univers, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648601, Japan

[10] Kindai Univ, Fac Sci & Engn, 3-4-1 Kowakae, Higashiosaka, Osaka 5778502, Japan

[11] Hokkaido Univ, Grad Sch Sci, Kita Ku, Kita 8,Nishi 5, Sapporo, Hokkaido 0600808, Japan

[12] Kanazawa Univ, Sch Math & Phys, Kanazawa, Ishikawa 9201192, Japan

[13] Univ Toyama, 3190 Gofuku, Toyama, Toyama 9300887, Japan

[14] Univ Shizuoka, Global Ctr Asian & Reg Res, Aoi Ku, 3-6-1 Takajo, Shizuoka, Shizuoka 4200839, Japan

[15] Tokyo Metropolitan Univ, Fac Syst Design, 6-6 Asahigaoka, Hino, Tokyo 1910065, Japan

[16] Univ Tokyo, Kavli Inst Phys & Math Universe, 5-1-5 Kashiwa No Ha, Kashiwa, Chiba 2778683, Japan

[17] Japan Atom Energy Agcy, Nucl Sci & Engn Ctr, 2-4 Shirakata, Tokai, Ibaraki 3191195, Japan

来源：

COMMUNICATIONS PHYSICS | 2019年 / 2卷 / 1期

关键词：

GROUND-LEVEL; ELECTRIC-FIELDS; X-RAYS; BURSTS; ACCELERATION; GENERATION; PARTICLES; MECHANISM;

D O I：

10.1038/s42005-019-0168-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Two types of high-energy events have been detected from thunderstorms. One is "terrestrial gamma-ray flashes" (TGFs), sub-millisecond emissions coinciding with lightning discharges. The other is minute-lasting "gamma-ray glows". Although both phenomena are thought to originate from relativistic runaway electron avalanches in strong electric fields, the connection between them is not well understood. Here we report unequivocal simultaneous detection of a gamma-ray glow termination and a downward TGF, observed from the ground. During a winter thunderstorm in Japan on 9 January 2018, our detectors caught a gamma-ray glow, which moved for similar to 100 s with ambient wind, and then abruptly ceased with a lightning discharge. Simultaneously, the detectors observed photonuclear reactions triggered by a downward TGF, whose radio pulse was located within similar to 1 km from where the glow ceased. It is suggested that the highly-electrified region producing the glow was related to the initiation of the downward TGF.

引用

页数：9

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