Thunderstorm electric fields probed by extensive air showers through their polarized radio emission

被引：9

作者：

Trinh, T. N. G. ^{[1
]}

Scholten, O. ^{[1
,2
]}

Bonardi, A. ^{[3
]}

Buitink, S. ^{[3
,4
]}

Corstanje, A. ^{[3
]}

Ebert, U. ^{[5
,6
]}

Enriquez, J. E. ^{[3
]}

Falcke, H. ^{[3
,7
,8
,9
]}

Horandel, J. R. ^{[3
,7
]}

Hare, B. M. ^{[1
]}

Mitra, P. ^{[4
]}

Mulrey, K. ^{[4
]}

Nelles, A. ^{[3
,10
]}

Rachen, J. P. ^{[3
]}

Rossetto, L. ^{[3
]}

Rutjes, C. ^{[5
]}

Schellart, P. ^{[3
,11
]}

Thoudam, S. ^{[3
,12
]}

ter Veen, S. ^{[3
]}

Winchen, T. ^{[4
]}

机构：

[1] Univ Groningen, KVI Ctr Adv Radiat Technol, POB 72, NL-9700 AB Groningen, Netherlands

[2] Vrije Univ Brussel, Interuniv Inst High Energy, Pl Laan 2, B-1050 Brussels, Belgium

[3] Radboud Univ Nijmegen, Dept Astrophys IMAPP, POB 9010, NL-6500 GL Nijmegen, Netherlands

[4] Vrije Univ Brussel, Astrophys Inst, Pl Laan 2, B-1050 Brussels, Belgium

[5] Ctr Math & Comp Sci CWI, POB 94079, NL-1090 GB Amsterdam, Netherlands

[6] Eindhoven Univ Technol TU e, Dept Appl Phys, POB 513, NL-5600 MB Eindhoven, Netherlands

[7] NIKHEF, Sci Pk Amsterdam, NL-1098 XG Amsterdam, Netherlands

[8] Netherlands Inst Radio Astron ASTRON, Postbus 2, NL-7990 AA Dwingeloo, Netherlands

[9] Max Planck Inst Radioastron, POB 20 24, Bonn, Germany

[10] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[11] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[12] Linnuniv, Dept Phys & Elect Engn, S-35195 Vaxjo, Sweden

来源：

PHYSICAL REVIEW D | 2017年 / 95卷 / 08期

基金：

欧盟地平线“2020”; 欧洲研究理事会;

关键词：

COSMIC-RAYS; LOFAR; RADIATION;

D O I：

10.1103/PhysRevD.95.083004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We observe a large fraction of circular polarization in radio emission from extensive air showers recorded during thunderstorms, much higher than in the emission from air showers measured during fair-weather circumstances. We show that the circular polarization of the air showers measured during thunderstorms can be explained by the change in the direction of the transverse current as a function of altitude induced by atmospheric electric fields. Thus by using the full set of Stokes parameters for these events, we obtain a good characterization of the electric fields in thunderclouds. We also measure a large horizontal component of the electric fields in the two events that we have analyzed.

引用

页数：10

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