PHOTONS AS CARRIERS OF ULTRA-HIGH ENERGY IN COSMIC SPACE

被引：0

作者：

Buyanova, E. A. ^{[1
]}

Molchatsky, L. S. ^{[2
]}

机构：

[1] Samara State Univ, Dept Gen & Theoret Phys, 1,Academician Pavlov St, Samara 443011, Russia

[2] Samara State Acad Social & Humanities, Dept Theoret Phys, Samara 443099, Russia

来源：

VESTNIK SAMARSKOGO GOSUDARSTVENNOGO TEKHNICHESKOGO UNIVERSITETA-SERIYA-FIZIKO-MATEMATICHESKIYE NAUKI | 2013年 / 02期

关键词：

cosmic rays; ultrahigh-energy photons;

D O I：

10.14498/vsgtu1149

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Absorbing process of ultrahigh-energy gamma-quanta in a cosmic space is investigated. It is shown that the main absorbing mechanism is the reactions arising at collisions of cosmic-ray photons with microwave and radio background ones. Estimate of the mean free path of a photon for different energies gives evidence that gamma-quanta with energies E > 10(19) eV running from Active Galactic Nuclei seem to reach the Earth vicinity. This result is in agreement with the recent observations of extensive air shower army experiments realized by AGASA and Yakutsk.

引用

页码：228 / 232

页数：5

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