20.500.12556/RUNG-5164-2f6577a5-bbb3-b2a7-0558-063d5f042ef6
Telescope Array Hot/Coldspot Study – Intermediate Scale Anisotropy
Indications of energy dependent intermediate scale anisotropy has been found in the arrival directions of ultra high energy cosmic rays with energies above 20 EeV in the northern hemisphere, using 7 years of TA surface detector data. The previously reported “hotspot‘” excess for E>57 EeV is found to correspond to a deficit, or “coldspot ”, of events for energies 20<E<57 EeV. At the center of maximum combined significance the excess for energies E>57 EeV has a Li Ma statistical significance of 4.62σ, and the deficit for energies 20<E<57 EeV a significance of 3.23σ. This combined feature is centered at R.A. = 146°, decl. = 47° (3° degrees from previously reported hotspot) and is 17°from the supergalactic plane. The hot/ coldspot feature suggests energy dependent magnetic deflection of
the isotropic background and cosmic rays from a source.
cosmic rays
energy spectrum
anisotropy
magnetic deflection
true
true
false
Angleški jezik
Ni določen
Delo ni kategorizirano
2020-04-27 22:56:31
2020-04-28 09:02:16
2023-06-13 14:26:02
0000-00-00 00:00:00
0
0
2016
APS April Meeting
0000-00-00
NiDoloceno
NiDoloceno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
12884995
URN:SI:UNG:REP:0JBGTFPW
Univerza v Novi Gorici
0
1
0