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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Are there nuclei among EGCRs?<br />
71<br />
Pure protons (cf. Berezinsky et al.)<br />
Mixed composition (Allard et al.)<br />
10<br />
protons only<br />
(uniform source distribution)<br />
Q(E) ~ E - 2.6<br />
HiRes 1 (mono)<br />
HiRes 2 (mono)<br />
10<br />
mixed composition<br />
(uniform source distribution)<br />
Q(E) ~ E - 2.3<br />
HiRes 1 (mono)<br />
HiRes 2 (mono)<br />
!(E) " E 3 (10 24 eV 2 m -2 s -1 sr -1 )<br />
1<br />
with low E cut<br />
with cut<br />
inferred<br />
Galactic<br />
components<br />
!(E) " E 3 (10 24 eV 2 m -2 s -1 sr -1 )<br />
1<br />
inferred<br />
Galactic<br />
component<br />
0,1<br />
0,1<br />
17 17,5 18 18,5 19 19,5 20 20,5 17 17,5 18 18,5 19 19,5 20 20,5<br />
log E (eV)<br />
log E (eV)<br />
10 10<br />
Source spectrum in E -2.6 Source spectrum in E -2.3<br />
Ankle = "pair production dip"<br />
Ankle = gal./extragal. transition<br />
Paris, 9 th June 2008 — IDAPPʼs two days 2008 — E. Parizot (APC / Univ. Paris 7)
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