OBSERVATION OF A VERY ENERGETIC COSMIC RAY WELL BEYOND THE PREDICTED 2.7-K CUTOFF IN THE PRIMARY ENERGY-SPECTRUM

被引：281

作者：

HAYASHIDA, N

HONDA, K

HONDA, M

IMAIZUMI, S

INOUE, N

KADOTA, K

KAKIMOTO, F

KAMATA, K

KAWAGUCHI, S

KAWASUMI, N

MATSUBARA, Y

MURAKAMI, K

NAGANO, M

OHOKA, H

TAKEDA, M

TESHIMA, M

TSUSHIMA, I

YOSHIDA, S

YOSHII, H

机构：

[1] TOKYO INST TECHNOL,DEPT PHYS,TOKYO 152,JAPAN

[2] YAMANASHI UNIV,FAC EDUC,KOFU,YAMANASHI 400,JAPAN

[3] SAITAMA UNIV,DEPT PHYS,URAWA,SAITAMA 338,JAPAN

[4] NISHINA MEM FDN,TOKYO 188,JAPAN

[5] HIROSAKI UNIV,FAC GEN EDUC,HIROSAKI,AOMORI 036,JAPAN

[6] NAGOYA UNIV,SOLAR TERR ENVIRONM LAB,NAGOYA,AICHI 46401,JAPAN

[7] NAGOYA UNIV FOREIGN STUDIES,NAGOYA,AICHI 47001,JAPAN

[8] EHIME UNIV,FAC GEN EDUC,MATSUYAMA,EHIME 790,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.73.3491

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A very energetic cosmic ray of energy about (1.7-2.6) × 1020 eV was observed by the Akeno Giant Air Shower Array on 3 December 1993 from the direction of galactic longitude l=131°and galactic latitude b=-41°within an error circle of 1.0°radius. If this cosmic ray were a proton; its origin could be extragalactic. However, the distance of the source cannot be much more than a few times 10 Mpc due to the energy loss during its travel from interactions with universal background radiation. © 1994 The American Physical Society.

引用

页码：3491 / 3494

页数：4

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[11] ULTRAHIGH-ENERGY COSMIC-RAY SPECTRUM [J].