Constraints to UHE cosmic ray source scenarios with all the major observables of the Pierre Auger Observatory / vorgelegt von Biswajit Sarkar aus Wuppertal. Wuppertal, September 2015
Inhalt
- Introduction
- Physical Foundation
- Cosmic rays
- Historical Background
- Energy Spectrum
- Chemical Composition
- Search for an Anisotropy in the Arrival Directions of UHECR
- Origin of Cosmic Rays
- Source Evolution
- Extragalactic Magnetic Fields
- Galactic Magnetic Field
- Propagation of UHECR
- Interactions with the Photon Background
- Ultra High Energetic Photon Production and Propagation
- Ultra High Energy Neutrino Production and Propagation
- Cosmological Effects
- The Development of Air Showers
- Parametrization of the "426830A Xmax "526930B and (Xmax)
- The Pierre Auger Observatory
- CRPropa
- Combined Fit to the Energy Spectrum and the Xmax Moments
- Introduction of General Scenario and Methods
- General scenario
- Deriving the Observables from Simulation Output
- Fit Procedure
- Choice of Further Assumptions
- Results
- Fit to the Energy Spectrum
- Standard Scenarios
- Influence of Technical Assumptions on the Fit Results
- GZK vs. Exhausted Sources
- Alternative Source Evolution Scenarios
- Magnetic Suppression
- Study with Additional Source Populations
- Scenario Variable Source Spectral Index
- Summary and Conclusion
- Secondary Photons and Neutrinos
- Study on Photon Flux
- Simulation Setup
- Parameter Studies
- Photon Flux Prediction for Reasonable Scenarios
- Constraints on Source Spectra and Maximum Energy
- Sensitivity to Local Sources
- Implications on GeV Photon Fluxes
- Assuming a Photon Component at Source
- Study of Neutrino Flux
- Simulation Setup
- General Parameter Studies
- Neutrino Flux Prediction for Reasonable Scenarios
- Constraints on Astrophysical Scenarios
- Comparison of the Exclusion Power from UHE Photons and Neutrinos
- Summary
- Arrival Directions of Cosmic Rays
- Data
- Impact of the Expansion of the Universe
- Simulation
- Assumption for Simulations
- Directional exposure
- Reweighting Procedure
- Calculation of Correlation Fraction
- Results
- Summary and Conclusion
- Summary and Conclusion
- Bibliography