AN INVESTIGATION OF MASS COMPOSITION OF ULTRA-HIGH ENERGY COSMIC RAYS WITH ENERGIES ABOVE 1019 eV VIA THE STUDY OF EXTENSIVE AIR SHOWERS

被引：4

作者：

Doostmohammadi, S. ^{[1
]}

Fatemi, S. J. ^{[1
]}

机构：

[1] Shahid Bahonar Univ Kerman, Fac Phys, Kerman 7616914111, Iran

来源：

SERBIAN ASTRONOMICAL JOURNAL | 2012年 / 184卷

关键词：

cosmic rays;

D O I：

10.2298/SAJ1284087D

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The electron and muon components of extensive air shower (EAS) with energies above 10(19) eV are analyzed via various giant EAS arrays. A varying property of showers is observed for two energy ranges; higher and lower than (3 4) x 10(19) eV. The age parameter, zenith angle, shower size dependence on muon size and shower size dependence on primary energy show an increment of mass composition (MC) above (3-4) x10(19)eV. Comparison of the observed EAS results with the simulations of Capdevielle et al. (2000) and Shinozaki et al. (2005) gives at most 20% photon fraction for primary energies above 10(19) eV. The arrival directions of showers above 4x10(19) eV indicate an increasing concentration towards the super galactic plane.

引用

页码：87 / 92

页数：6

共 50 条

[31] INNOVATIVE DETECTION OF ULTRA HIGH ENERGY COSMIC RAYS INDUCED AIR SHOWERS
Isar, P. G.
ROMANIAN REPORTS IN PHYSICS, 2012, 64 (03) : 825 - 830
[32] Depth of the maximum of extensive air showers and mass composition of primary cosmic radiation at an energy of 4 x 1017 eV according to data on radioemission from extensive air showers
Vedeneev, O. V.
PHYSICS OF ATOMIC NUCLEI, 2009, 72 (02) : 250 - 256
[33] Search for point sources of ultra-high-energy cosmic rays above 1019 eV using a maximum likelihood ratio test
Westerhoff, S.
Finley, C. B.
Proceedings of the 29th International Cosmic Ray Conference Vol 7: HE 1.4, 2005, : 397 - 400
[34] Propagation of ultra-high-energy cosmic rays above 1019 eV in a structured extragalactic magnetic field and galactic magnetic field
Takami, H
Yoshiguchi, H
Sato, K
ASTROPHYSICAL JOURNAL, 2006, 639 (02): : 803 - 815
[35] Relation between hadronic interactions and ultra-high energy extensive air showers
Ulrich, Ralf
Baus, Colin
Engel, Ralph
18TH INTERNATIONAL SYMPOSIUM ON VERY HIGH ENERGY COSMIC RAY INTERACTIONS (ISVHECRI 2014), 2015, 99
[36] MEASUREMENT OF THE ELONGATION RATE OF EXTENSIVE AIR SHOWERS PRODUCED BY PRIMARY COSMIC-RAYS OF ENERGY ABOVE 2 BY 10-17 EV
WALKER, R
WATSON, AA
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1981, 7 (09) : 1297 - 1309
[37] Energy spectrum and mass composition of primary cosmic rays at energies 1015–1018 eV
N. N. Kalmykov
G. V. Kulikov
V. P. Sulakov
Yu. A. Fomin
Moscow University Physics Bulletin, 2009, 64 : 536 - 540
[38] EXTENSIVE AIR SHOWERS AND CHARACTERISTICS OF HIGH-ENERGY NUCLEAR INTERACTIONS AT AND ABOVE 1014 EV
UEDA, A
MCCUSKER, CB
NUOVO CIMENTO, 1962, 23 (05): : 877 - +
[39] Studying the nuclear mass composition of Ultra-High Energy Cosmic Rays with the Pierre Auger Observatory
Cazon, L.
12TH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS (TAUP 2011), PTS 1-6, 2012, 375
[40] Sources, spectra and composition of ultra-high energy extragalactic cosmic rays
Zirakashvili, V. N.
Ptuskin, V. S.
Rogovaya, S. I.
Klepach, E. G.
26TH EXTENDED EUROPEAN COSMIC RAY SYMPOSIUM, 2019, 1181

← 1 2 3 4 5 →