Cosmic ray physics and AUGER latest results

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Recent input: HESS observations of Gal. center 30 ■ TeV emission from hard spectrum of energetic particles correlated with matter distribution hard spectrum (E -2.3 ) → close to the source? dynamical process → access to diffusion coef. crucial for GCR propagation! + constraint for CR acceleration mechanisms! Paris, 9 th June 2008 — IDAPPʼs two days 2008 — E. Parizot (APC / Univ. Paris 7)
GCR large angular scale anisotropy 31 ■ Small “dipole” anisotropy expected, due to non uniform CR distribution in the Galaxy ■ ⇒ contraints on D(E) Teshima 1993 δ = - (3D/vN)(dN/dz) = 3S/2vN δ = (3σ disc /2X) × z Sun h disc [σ disc in g/cm 2 , X(E) = escape grammage of GCRs, z Sun ~ 15 pc, h disc ~ 100 pc] anisotropie (amplitude !) 10 -1 10 -2 10 -3 ■ Incompatible with D(E)∝E 0.6 ? 10 -4 10 0 10 12 14 16 18 20 Afanasaiev et al. 1995 D(E) ~ E 0.6 D(E) ~ E 1/3 (h 0 / H disk = 15/100) Alexeenko et al. 1993 log (E / 1 eV) ■ ...but compatible with D(E)∝E 1/3 ! → source spectrum in E -2.3 ? Paris, 9 th June 2008 — IDAPPʼs two days 2008 — E. Parizot (APC / Univ. Paris 7)
Page 1 and 2: 1 Cosmic-ray physics and Auger late
Page 3 and 4: 3 Cosmic rays: “CRs” ■ Key su
Page 5 and 6: Cosmic ray physics started one cent
Page 7 and 8: 7 Viktor Hess: August, 7 th 1912 12
Page 9 and 10: 9 Then a long story began… ■
Page 11 and 12: 11 CR-induced atmospheric showers P
Page 13 and 14: Schism… and ecumenism! 13 study o
Page 15 and 16: A remarkably coherent, though myste
Page 17 and 18: [CR flux] x E 3 17 ■ Essentially
Page 19 and 20: 19 The way out of the mist ■ Anal
Page 21 and 22: 21 Propagation: a “3-space” pro
Page 23 and 24: 23 Angular distribution ■ Isotrop
Page 25 and 26: Interaction with B inhomogeneities
Page 27 and 28: Reaching the diffusive regime 27 <
Page 29: Diffusive transport and GCR confine
Page 33 and 34: larger energy 33 Paris, 9 th June 2
Page 35 and 36: still larger energy 35 “Ballistic
Page 37 and 38: 37 Propagation: a “3-space” pro
Page 39 and 40: Energy losses and nuclear interacti
Page 41 and 42: Pion production in interstellar med
Page 43 and 44: Nuclear interactions in ISM 43 Pari
Page 45 and 46: Composition: CR vs solar system 45
Page 47 and 48: Secondary/primary ratios 47 Strong
Page 49 and 50: 49 Some results ■ ■ ■ ■ Sec
Page 51 and 52: 51 Cosmic-ray clocks 54 Mn/Mn 36 Cl
Page 53 and 54: 53 Antiprotons Strong & Moskalenko
Page 55 and 56: Search for dark matter: positron fr
Page 57 and 58: 57 High energy CR propagation ■
Page 59 and 60: 59 [cross section] x [inelasticity]
Page 61 and 62: 61 "Propagated" spectrum z = 0.01,
Page 63 and 64: 63 10 Spectre propagé (source uniq
Page 65 and 66: UHE Nuclei propagation 65 2D nuclea
Page 67 and 68: Fe interaction and energy loss leng
Page 69 and 70: Fit of the spectrum with a “pure
Page 71 and 72: Are there nuclei among EGCRs? 71 Pu
Page 73 and 74: 73 The Pierre Auger Observatory Nor
Page 75 and 76: High-energy CR detection 75 • com
Page 77 and 78: Hexagonal array (1.5 km spacing, 30
Page 79 and 80: Aerial view of Los Leones fluoresce
Page 81 and 82:
One of the fluorescence eyes 81 440
Page 83 and 84:
83 Independent analyses of stereo e
Page 85 and 86:
Atmospheric depth of shower maximum
Page 87 and 88:
Energy reconstruction with surface
Page 89 and 90:
Cross-calibration of the detectors
Page 91 and 92:
Energy spectrum from SD showers wit
Page 93 and 94:
Energy spectrum 93 Paris, 9 th June
Page 95 and 96:
Auger main anisotropy result 95 ■
Page 97 and 98:
Auger main anisotropy result 97 3 f
Page 99 and 100:
Significance of the anisotropy resu
Page 101 and 102:
101 Auger main anisotropy result Th
Page 103 and 104:
Summary of Auger results 103 compos
Page 105 and 106:
Galactic/Extragalactic transition 1
Page 107 and 108:
Toy model: holistic scenario 107
Page 109 and 110:
What is at stake 109 ■ Major disc
Page 111 and 112:
111 Extra slides Paris, 9 th June 2
Page 113 and 114:
Photon flux limit 113 astro-ph/0712
Page 115 and 116:
Neutrino detection with Auger "GZK
Page 117 and 118:
Selection criteria 117 young shower
Page 119 and 120:
Horizontal showers 119 Example of a
Page 121 and 122:
LiBeB nucleosynthesis 121 ■ Li, B
Page 123:
HE photon emission from GCR interac
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