The electron spectrum above 20 GeV measured by ATIC-2

被引:17
作者
Chang, J. [1 ]
Schmidt, W. K. H. [1 ]
Adams, J. H. [1 ]
Ahn, H. S. [1 ]
Bashindzhagyan, G. [1 ]
Batkov, K. E. [1 ]
Christl, M. [1 ]
Fazely, A. R. [1 ]
Ganel, O. [1 ]
Gunasingha, R. M. [1 ]
Guzik, T. G. [1 ]
Isbert, J. [1 ]
Kim, K. C. [1 ]
Kouznetsov, E. [1 ]
Panasyuk, M. [1 ]
Panov, A. [1 ]
Seo, E. S. [1 ]
Sokolskaya, N. [1 ]
Wang, J. Z. [1 ]
Wefel, J. P. [1 ]
Wu, J. [1 ]
Zatsepin, V. [1 ]
机构
[1] Chinese Acad Sci, Purple Mt Observ, Beijing 100864, Peoples R China
来源
PROCEEDINGS OF THE 29TH INTERNATIONAL COSMIC RAY CONFERENCE, VOL 3: OG1 | 2005年
关键词
D O I
10.1145/1117696.1117697
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The Advanced Thin Ionization Calorimeter (ATIC) Balloon Experiment has been flown from McMurdo, Antarctica in 2000-01 (test flight) and 2002-03 (science flight). ATIC is composed of a segmented BGO calorimeter following a carbon target with scintillator tracking layers and a Silicon matrix detector at the entrance. ATIC measures the composition and energy spectra of the nuclei plus electrons. We present the electron spectrum derived from the ATIC-2 science flight, from 20 GeV to 1.5 TeV, and compare it to existing very high energy measurements from emulsion chambers and to the results of galactic propagation calculations. The good energy resolution and high statistics in the ATIC data allow detailed astrophysical interpretation of the results.
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页码:1 / 4
页数:4
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