Cosmic ray physics and AUGER latest results
Cosmic ray physics and AUGER latest results
Cosmic ray physics and AUGER latest results
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Fit of the spectrum with mixed composition<br />
70<br />
protons up to 200 EeV<br />
protons up to 40 EeV<br />
0 1 2 3 4 5 Mixed composition<br />
"=2.2<br />
H He CNO 12 20 26 E Max<br />
=Z*10 20.2 EeV<br />
E 3 !(E) (eV 2 m -2 s -1 sr1)<br />
10 24<br />
10 23<br />
1<br />
2<br />
0<br />
5<br />
2<br />
10 22<br />
3<br />
10 25 4 1 3<br />
18,4 18,8 19,2 19,6 20 20,4<br />
4<br />
5<br />
log 10<br />
E eV<br />
Protons dominate at Earth<br />
(photodissociation)<br />
Fe nuclei dominate at Earth<br />
at the highest energies<br />
Paris, 9 th June 2008 — IDAPPʼs two days 2008 — E. Parizot (APC / Univ. Paris 7)
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