The cosmic ray energy spectrum between 1014 and 1016 eV

被引：100

作者：

Glasmacher, MAK

Catanese, MA

Chantell, MC

Covault, CE

Cronin, JW

Fick, BE

Fortson, LF

Fowler, JW

Green, KD

Kieda, DB

Matthews, J

Newport, BJ

Nitz, DF

Ong, RA

Oser, S

Sinclair, D

van der Velde, JC

机构：

[1] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[2] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[3] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA

来源：

ASTROPARTICLE PHYSICS | 1999年 / 10卷 / 04期

关键词：

D O I：

10.1016/S0927-6505(98)00070-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The energy spectrum of cosmic rays with primary energies between 10(14) eV and 10(16) eV has been studied with the CASA-MIA air shower array. The measured differential energy spectrum is a power law (dj/dE proportional to E-gamma) With spectral indices gamma of 2.66 +/- 0.02 below approximately 10(15) eV and 3.00 +/- 0.05 above. A new method is used for measuring primary energy derived from ground-based data in a compositionally insensitive way. In contrast with some previous reports, the "knee" of the energy spectrum does not appear sharp, but rather a smooth transition over energies from 10(15) eV to 3.0 x 10(15) eV. (C) 1999 Elsevier Science B.V.

引用

页码：291 / 302

页数：12

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