AtmoHEAD 2022

Session

Atmospheric Electricity

14 Jul 2022, 09:30

Villa Orlandi, Anacapri

15. Improving the measurement of TGF candidates at the Pierre Auger Observatory

Martin Schimassek

14/07/2022, 09:30

The Pierre Auger Observatory is designed to measure the highest energy
cosmic-rays.
However, the surface detector, covering 3\,000\,km$^2$, is also sensitive to
events associated with atmospheric electricity.
These events can be distinguished from normal cosmic-ray events in both
temporal and spatial structure.
With signals lasting around 10 $\mu$s, they are about an order of
magnitude...

12. Observations of the Origin of Downward Terrestrial Gamma-ray Flashes with the Telescope Array Surface Detector

Prof. John Belz

14/07/2022, 10:00

We present an overview and most recent observations of the lightning research program being conducted in conjunction with the Telescope Array cosmic ray observatory in Utah, U.S.A. This program focuses on understanding the initial breakdown stage of lightning through observations of downward Terrestrial Gamma-ray Flashes (TGFs).

Recent observations have demonstrated that Terrestrial...

17. Thunderstorms and Atmospheric Gamma-ray Observations at the Telescope Array Detector.

Prof. Rasha Abbasi (Loyola University Chicago )

14/07/2022, 10:30

In this talk I will present observations of lightning and terrestrial gamma ray initiation at the Telescope Array (TA) detector. The Telescope Array detector is located in the southwestern desert of the State of Utah. The combination of size and elevation makes it a unique tool that allows us to study thunderstorms. Currently it is the largest ultra high energy cosmic ray experiment in the...

20. Intensely Radiating Negative Leaders Observed by LOFAR and their possible connection to TGFs

Brian Hare (University of Groningen)

14/07/2022, 11:30

Multiple recent works by the LOFAR lightning team have established the existence of a type of negative leader that emits extremely intense radio radiation. In addition, these leaders propagate about ten times faster than normal negative leaders (10^6 m/s vs 10^5 m/s). We refer to this phenomena as Intensely Radiating Negative Leaders or IRNLs; it is plausible they could be related to...

26. LIGHT-1: A 3U Cubesat Mission for the detection of Terrestrial Gamma- Ray Flashes

Adriano Di Giovanni (Gran Sasso Science Institute)

14/07/2022, 12:00

Serendipitously discovered by the BATSE mission in the nineties, Terrestrial Gamma-ray Flashes (TGFs) represent the most intense and energetic natural emission of gamma rays from our planet. TGFs consist of sub-millisecond bursts of gamma rays (energy up to one hundred MeV) generated during powerful thunderstorms by lightenings and are in general companions of several other counterparts...

9. Interference of extraterrestrial particle accelerators and accelerators operated in the terrestrial atmosphere

Ashot Chilingarian

14/07/2022, 12:30

Different kinds of particle accelerators are operating in the intergalactic plasmas filling the space with high-energy hadrons and gamma rays, which reach the earth’s atmosphere and unleash extensive air showers (EASs) consisting of millions and billions of elementary particles covering several km2 on the ground. During thunderstorms, emerging strong electric fields modulate the EAS particles...