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Crocker et al' 2004, astroph0408183

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Crocker et al. 2004, astro-ph/0408183. Crocker et al. 2004, astro-ph/0408183. EGRET ... EGRET EHECR. predicted flux: HESS. predicted flux: HESS EHECR. predicted flux: ... – PowerPoint PPT presentation

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Title: Crocker et al' 2004, astroph0408183


1
Crocker et al. 2004, astro-ph/0408183
2
Crocker et al. 2004, astro-ph/0408183
EGRET
HESS (Whipple) (CANGAROO)
EHECR the EHE cosmic ray observations (AGASA?
SUGAR?)
now calculate neutrino flux
3
Crocker et al. 2004, astro-ph/0408183
normalize neutrino flux to what ? ? ?
EGRETEHECR needs attenuation of TeV gamma
rays interaction with galactic NIR background
via ?? pair production leads to highest ?
signal but unlikely large column density
4
Crocker et al. 2004, astro-ph/0408183
normalize neutrino flux to what ? ? ?
cutoff
HESSEHECR needs two sources cutoff near 1011
eV makes it invisible in ?
5
Crocker et al. 2004, astro-ph/0408183
normalize neutrino flux to what ? ? ?
HESS leads to a strict lower limit for the ?
flux
cutoff
6
EGRETEHECR predicted flux
HESS predicted flux
HESSEHECR predicted flux
calculate event rates
Flux(E) Area(E,?) DetProb(E) Attenuation(E,?)
with parametrization from 6 different papers
7
dtctr prcss rate thrsh bkgd yrs ICE ? 9.2 13.5
0.8 0.20 7.1 14.0 0.04 0.14 shwr 31 13.5
7 0.053 13 14.0 0.5 0.074 e-rsnt
1.9 0.2 0.95 ANT ? 1.0 11.7 0.02
0.98 shwr 0.2 13.5 0.1 13 MED ?(up) 101.0
11.7 6.1 0.019 ? (dn) 14.1 13.0 0.2
0.070 shwr 21.6 13.5 10.0 0.063 e-rsnt
1.9 0.2 0.95 ICE ? 0.6 14.1 0.02
1.6 shwr 0.8 14.0 0.5 3.9 e-rsnt 0.3
0.2 10 MED ? (up) 2.0 12.0 1.3 1.5 ? (dn)
0.7 13.0 0.2 3.3 shwr 0.3 14.0 0.2
10 e-rsnt 0.3 0.2 10 ICE ? 0.1 14 0.04
21 MED ?(up) 0.3-0.9 12.3 0.3 2.5-12 ?(dn)
0.1 13.5 0.006 19
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