Coherent transition radiation from the geomagnetically-induced current in cosmic-ray air showers: Implications for the anomalous events observed by ANITA. (arXiv:1903.08750v1 [astro-ph.HE])

Coherent transition radiation from the geomagnetically-induced current in cosmic-ray air showers: Implications for the anomalous events observed by ANITA. (arXiv:1903.08750v1 [astro-ph.HE])
<a href="http://arxiv.org/find/astro-ph/1/au:+Vries_K/0/1/0/all/0/1">Krijn D. de Vries</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Prohira_S/0/1/0/all/0/1">Steven Prohira</a>

We show that coherent transition radiation (CTR) from the
electrically-neutral transverse geomagnetic current (CTR-GM) has to be included
in the radio emission models to understand the radio emission from a
high-energy cosmic-ray air shower traversing a dielectric boundary. 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. As such CTR-GM might provide a natural, standard model,
explanation to the recent “anomalous” events observed by the ANITA detector.

We show that coherent transition radiation (CTR) from the
electrically-neutral transverse geomagnetic current (CTR-GM) has to be included
in the radio emission models to understand the radio emission from a
high-energy cosmic-ray air shower traversing a dielectric boundary. 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. As such CTR-GM might provide a natural, standard model,
explanation to the recent “anomalous” events observed by the ANITA detector.

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