ELFT HÍRADÓ

[szpl <szpl AT metal.elte.hu>]

ELTE Fizikai Intézet

                                ORTVAY KOLLOKVIUM

                    2017. február 23., csütörtök, 16:00-kor
                Az ELTE Pázmány Péter s. 1/A alatti épületében
                           földszinti 0.81 előadóban

                                Sijbrand de Jong
            (President of CERN Council, Radboud University Nijmegen)

	  "Radio detection: a new observation technique to investigate 
		    the Ultra-High-Energy Cosmic Ray mysteries"

Kivonatos ismrtetés:
Ultra-High-Energy Cosmic Rays (UHECRs) have been found with energies as high 
as 10^20 eV in a single subatomic particle. The 3000 km^2 Pierre Auger 
Observatory has collected data over the past 15 years that confirmed a predicted 
cut-off at ultra-high energy. However, it also introduced new mysteries surrounding 
these UHECRs. At this moment we must admit the we do not know their sources, their
propagate through the universe, or even their particle type is.
The detection of UHECRs using the radio frequency signals they produce in the 
atmosphere, which was developed over the last decade, is a new and powerful 
tool to solve the current mysteries surrounding UHECRs.
In this talk I will introduce the open questions on UHECRs and discuss the mechanism, 
status and prospects for radio detection of UHECRs.