Coherent transition radiation from the geomagnetically-induced current in cosmic-ray air showers: Implications for the anomalous events observed by ANITA

Krijn De Vries, Steven Prohira

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We show that coherent transition radiation from the electrically-neutral transverse geomagnetic current (CTR- GM) in a cosmic-ray air shower provides a natural, standard model, explanation to the recent ``anomalous'' events observed by the ANITA detector. We demonstrate that for zenith angles less than roughly 70 degrees, combined with high surface elevation, the inclusion of CTR-GM can significantly alter the emitted electric field from a cosmic-ray air shower. CTR-GM therefore has to be included in radio emission models to provide a full description of the radio emission from a high-energy cosmic-ray air shower traversing a dielectric boundary.
Original languageEnglish
Article number091102
Number of pages5
JournalPhys. Rev. Lett.
Volume123
Issue number9
DOIs
Publication statusPublished - 30 Aug 2019

Bibliographical note

To be published in PRL

Keywords

  • astro-ph.HE

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