Projects per year
Abstract
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.
Original language | English |
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Article number | 083004 |
Number of pages | 10 |
Journal | Physical Review D |
Volume | 95 |
Issue number | 8 |
DOIs | |
Publication status | Published - 7 Apr 2017 |
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SRP8: Strategic Research Programme: High-Energy Physics at the VUB
D'Hondt, J., Van Eijndhoven, N., Craps, B. & Buitink, S.
1/11/12 → 31/10/24
Project: Fundamental
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EU485: Searching for The Origin of Cosmic Rays and Neutrinos with LOFAR
1/06/15 → 30/11/20
Project: Fundamental