new views for neutrino astronomy with auger: predictions by daniele fargion
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New views for Neutrino Astronomy with AUGER: Predictions by Daniele Fargion. arXiv:0801.0227v1 [astro-ph] 2 Jan 2008. Cen A or not Cen A…. This is the question. Introduction. AUGER Michael Unger , Pierre Auger July. Composition puzzle. - PowerPoint PPT PresentationTRANSCRIPT
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New views for Neutrino New views for Neutrino Astronomy with AUGER: Astronomy with AUGER:
PredictionsPredictionsby Daniele Fargionby Daniele Fargion
Cen A or not Cen A….Cen A or not Cen A….
This is the questionThis is the question
arXiv:0801.0227v1 [astro-ph] 2 Jan 2008
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IntroductionIntroduction
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Composition puzzleComposition puzzleAUGER AUGER Michael Unger , Pierre Auger Michael Unger , Pierre Auger
JulyJuly
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So Why protons at 57 EeV?So Why protons at 57 EeV?Why a Super Galactic plane..not longer Why a Super Galactic plane..not longer
mentionedmentionedWhy so many events around Cen A?Why so many events around Cen A?
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Other sources may be far Other sources may be far awayaway
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Pair production
p p e+ e-
Photopion production
p p 0 n
100 Mpc
1000 Mpc
log10
[ E (eV)]
log 10
[ l at
t (M
pc)]
Universe size
THE PROTON DISTANCES in FLIGHT
CMBpro
tons
Adiabatic lossesUniverse expansion
Photopion production
p p 0 n
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UHE Nuclei energy losses Pair production
A e+ e-
Universe size
Iron
Universe sizehelium
Photodisintegration
A (A-1) N (A-2) 2N
Depletion of the flux Iron Helium
Pair production has no particular effect on the flux
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RangeRange
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GZK cut too earlyGZK cut too early
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Light NucleiLight Nuclei
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GZK in agreement with light GZK in agreement with light nucleinuclei
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So light nuclei may So light nuclei may trace nearer Universe trace nearer Universe and fit AUGER GZKand fit AUGER GZK
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More about z=0.01 More about z=0.01 Universe..Universe..
Where is Virgo?Where is Virgo?
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Todor Stanev Updated Maps..alleviate Virgo Todor Stanev Updated Maps..alleviate Virgo puzzle..but..puzzle..but..
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The 3D mapThe 3D map
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Map z= 0.01-0.02 is Map z= 0.01-0.02 is presentpresent
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Nearest Virgo is missing..Nearest Virgo is missing..
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Map Polarized-Auger show the Map Polarized-Auger show the link between Cen A and Blink between Cen A and BGalacticGalactic
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Map-Polarization2Map-Polarization2
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A perverse Random walkA perverse Random walkOverlapping Cen A events Overlapping Cen A events
along Vertical Super Galactic along Vertical Super Galactic PlanePlane
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Deflecting nuclei by random Deflecting nuclei by random anglesangles
in Galactic Magnetic fields..in Galactic Magnetic fields..It forms the Cen A group It forms the Cen A group
verticallyvertically
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So maybe AUGER confused So maybe AUGER confused SGP with Cen A blurred source?SGP with Cen A blurred source?
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So this need a testSo this need a test
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More clustering around Cen More clustering around Cen A..A..
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First Answers in UHE neutrinos in AUGER TAU inclined Air showers mostly from the Ande
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Thank you for the kind attention