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XXI st European Cosmic Ray Symposium. Kosice 2008. ^. Heavy Cosmic Ray Nuclei from Extragalactic Sources above The Ankle. Tadeusz Wibig. University of Łódź. A. Sołtan Institute for Nuclear Studies. - PowerPoint PPT Presentation
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XXIst European Cosmic Ray Symposium
Kosice 2008
^
Tadeusz Wibig
University of Łódź
A. Sołtan Institute for Nuclear Studies
Heavy Cosmic Ray Nuclei from Extragalactic Sources above The Ankle
R.U. Abbasi et al.., e-Print: arXiv:0804.0382 [astro-ph], Apr. 2008
R.U. Abbasi et al.., e-Print: arXiv:0804.0382 [astro-ph], Apr. 2008
source (l, b) objects (sources) distance observed angular size
A (310º,20º) CEN-A 4.9 Mpc 10º
B (190º, -60º) FORNAX
NGC 1052
NGC 1407
18 Mpc
22 Mpc
6º
C ( 60º, -45º) 33 Mpc 10º
Source A
Source B
Source C
Source A
Source B
Source C
source (l, b) objects (sources) distance observed angular size
IGM deflection
A (310º,20º) CEN-A 4.9 Mpc 10º 1.1º
B (190º, -60º) FORNAX
NGC 1052
NGC 1407
18 Mpc
22 Mpc
6º 2.2º
C ( 60º, -45º) 33 Mpc 10º 2.8º
source (l, b) distance observed angular size
IGM deflection
Galactic deflection
deflection
A (310º,20º) 4.9 Mpc 10º 1.1º 0.7º 1.3º
B (190º, -60º) 20 Mpc 6º 2.2º 0.5º 2.2º
C ( 60º, -45º) 33 Mpc 10º 2.8º 0.5º 2.8º
source (l, b) distance observed angular size
Deflection for Z=1
Z
A (310º,20º) 4.9 Mpc 10º 1.3º 7.7
B (190º, -60º) 20 Mpc
6º 2.2º 2.7
C ( 60º, -45º) 33 Mpc 10º 2.8º 3.6
│
J.R.Hoerandel, 36th COSPAR, Beijin 2006 ; astro-ph/0702370
■●
│
Conclusions:
The extragalactic CR with E > 5.6 1019 eV from the close AGN do not have to be protons
there is not necessary to change of the ‘conventional’ model of nuclear interactions above 60 EeV
T. Wibig & A.W. Wolfendale, J.Phys. G34, 1891 (2007)
G- and power law EG- the fit
A.A. Watson, Proc. 30th ICRC (Merida) (2007)
V.S. Berezinsky & S.I. Grigorieva, Astron. Astrophys. 199, 1 (1998)
EG protons only
A.A. Watson, Proc. 30th ICRC (Merida) (2007)
T. Wibig & A.W. Wolfendale, J.Phys. G34, 1891 (2007)
the quasar source model for protons
A.A. Watson, Proc. 30th ICRC (Merida) (2007)