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Gia Trinh (KVI - CART, University of Groningen)07/06/2016, 15:10poster
When a high-energy cosmic-ray particle enters the upper layer of the atmosphere, it generates many secondary high-energy particles and forms a cosmic-ray-induced air shower. In the leading plasma of this shower electric currents are induced that emit electromagnetic radiation. These radio waves can be detected with LOw-Frequency ARray (LOFAR) radio telescope. Events have been collected under...
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Roman Hiller (KIT)07/06/2016, 15:12
The Tunka-Radio extension is a radio detector for air showers in Siberia.
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It currently consists of 44 antennas, distributed over 3 square kilometer, and co-located with Tunka-133, a non-imaging air-Cherenkov detector for air showers.
From 2012 to 2014 on, Tunka-Rex operated exclusively together with its host experiment, Tunka-133, which provided a trigger,
data acquisition and an... -
Krijn de Vries (VUB/IIHE)07/06/2016, 15:14
We discuss the radio emission from different parts of the cascade development for a cosmic-ray induced air shower hitting an ice surface. The in-air emission, in-ice emission, as well as the transition radiation are included in to the calculation. The induced signal should be detectable by the currently operating Askaryan radio detectors searching for the GZK neutrino flux. Where on one side...
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Murat Ali Guler (Middle East Technical University (TR))07/06/2016, 15:16
Nowadays there is compelling evidence for the existence of dark matter in the Universe. A general consensus has been expressed on the need for a directional sensitive detector to confirm, with a complementary approach, the candidates found in “conventional” searches and to finally extend their sensitivity beyond the limit of neutrino-induced background. We propose here the use of a detector...
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Katharine Mulrey (Vrije Universiteit Brussel)07/06/2016, 15:18
LORA (LOFAR Radboud Air shower array) is a particle detector build around the LOFAR core to complement radio detection of cosmic rays. The LORA instrument has been critical in determining the arrival direction, energy, and core location of cosmic rays detected with LOFAR. LORA detects particles from a cosmic ray induced extensive air shower and triggers the LOFAR antennas to read out relevant...
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Mr Danny Sardjan (KVI-CART), Mr Freddie Hendriks (KVI-CART)07/06/2016, 15:20poster
The initial and yet fundamental process in a typical cloud-to-ground lightning strike includes the
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propagation of a very faint and charged channel which is called stepped leader. The exact
mechanism for the step leaders is not understood. The reason for this is that the temporal and/or
spatial resolution of the devices exploited for observing this phenomenon has not been sufficient.
The... -
Rick Timmer (KVI), Sybrand Zeinstra (KVI)07/06/2016, 15:22poster
We present a bottom-up and a top-down model that can produce high-energy neutrinos.
Gamma rays bursts (GRBs) are flashes of gamma rays which are associated with extremely high energetic explosions in distant galaxies. The relativistic fireball is the most popular model to explain the GRBs. Within the fireball model ultra-high energetic cosmic rays can be produced. It is also likely that...
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Lucas van Sloten (KVI)07/06/2016, 15:24poster
Extensive air showers are an interesting phenomena because they can provide information about, among many other things, the electric fields present in the atmosphere, an understanding of which is necessary to understand the concept of lightning.
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To be able to deduce the electric fields from the radio footprint we have developed a macroscopic code that uses a parametrized shower profile. We...
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