Author: The Pierre Auger CollaborationPublisher:
ISBN:
Category :
Languages : en
Pages : 270
Book Description
The Pierre Auger project
Author: The Pierre Auger CollaborationPublisher:
ISBN:
Category :
Languages : en
Pages : 270
Book Description
The Pierre Auger Project
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 15
Book Description
The Pierre Auger project is a broadly based international effort to make a detailed study of cosmic rays at the highest energies. Two air shower detectors are proposed, one to be placed in the Northern Hemisphere and one in the Southern Hemisphere. Each installation will consist of an array of 1600 particle detectors spread over 3000 km2 with a solid angle acceptance of 2 sr for cosmic ray air showers. Eah installation will also have an atmospheric fluorescence detector viewing the volume above the surface array. These two air shower detector techniques working together form a powerful instrument for the proposed research. The objectives of the Pierre Auger project are to measure the arrival direction, energy, and mass composition of 60 events per year above an energy of 102° eV and 6000 events per year above 1019 eV. A collaboration is now being formed with the goal of having the Pierre Auger observatory in operation by 2001.
Arrival Direction Probabilities of Ultra High Energy Cosmic Rays with the Pierre Auger Observatory and Progress Toward an In-situ Cross-calibration of Auger and Telescope Array Surface Detector Stations
Author: Sean P. QuinnPublisher:
ISBN:
Category : Astrophysics
Languages : en
Pages : 435
Book Description
The origin and nature of ultra-high energy cosmic rays is an open question in astrophysics since their discovery in the 1960s. Observed energies of these primary particles can approach greater than 10x the center of mass energies achieved at modern collider facilities, and there is presently no consensus for an astrophysical mechanism capable of reaching these energies. The Pierre Auger Observatory is the world's largest cosmic ray observatory, spanning ~3,000 km2, dedicated to this problem. After initial acceleration, the primary trajectory from source to solar system is not rectilinear due to magnetic deflection. This dissertation investigates how uncertainties of a modern galactic magnetic field model translate into arrival direction uncertainties for E>50 EeV events using a sensitivity analysis approach. In most cases it's found that uncertainties from B-field model dominate compared to observation systematic errors. Furthermore, the angular extent of 1s arrival direction contours is found to enclose many potential astrophysical objects, making it difficult to isolate individual sources. Implications for anisotropy studies are also briefly discussed.To enable full-sky coverage, Auger data can be combined with the Telescope Array Project, a similar array operating in the northern hemisphere. In both experiments most data are generated from the surface-detector (SD) array. The TA and Auger experiments use different SD station designs, giving them different sensitivities to extensive air-shower components. We seek to understand and cross-validate these complementary detectors on a hardware level using an in-situ approach to observe the same air showers. We describe the technical details associated with installing the detectors, data acquisition, and analysis of signals for this first stage of the Auger@TA project. Integrated signals are compared to a collection of models, and in general are found to agree with expectations. For a subsample of events air-shower parameters are available, and a sophisticated simulation is run to predict the expected response of the two detectors, which is compared to observed data. These simulations appear to show some discrepancy. Characterizing and understanding the discrepancies will be important for taking full advantage of future planned upgrades to both experiments, especially in the context of atomic composition measurements.
Beam Line
Author: Measurement of Tyvek Reflectivity Properties for the Pierre Auger Project
Author: Justus Ogwoka GichabaPublisher:
ISBN:
Category :
Languages : en
Pages : 124
Book Description
Liber Psalmorum
Author: Very High Energy Phenomena in the Universe
Author: Yannick Giraud-HéraudPublisher: Atlantica Séguier Frontières
ISBN: 9782863322178
Category : Electroweak interactions
Languages : en
Pages : 488
Book Description
Cosmic Gamma Rays
Author: Floyd William SteckerPublisher:
ISBN:
Category : Gamma rays
Languages : en
Pages : 262
Book Description
Cosmic gamma ray production processes, galactic and extragalactic gamma rays, and cosmology.
A complete method to obtain the energy spectrum of inclined cosnic rays detected with the Pierre Auger Observatory.
Author: Publisher: Univ Santiago de Compostela
ISBN:
Category :
Languages : en
Pages : 163
Book Description
Advances in Space Environment Research
Author: I.H. CairnsPublisher: Springer Science & Business Media
ISBN: 9400710690
Category : Science
Languages : en
Pages : 535
Book Description
Advances in Space Environment Research - Volume I contains the proceedings of two international workshops, the World Space Environment Forum (WSEF2002) and the High Performance Computing in Space Environment Research (HPC2002), organized by the World Institute for Space Environment Research (WISER) from 22 July to 2 August 2002 in Adelaide, Australia. The articles in this volume review the state-of-the-art of the theoretical, computational and observational studies of the physical processes of Sun-Earth connections and Space Environment. They cover six topical areas: Sun/Heliosphere, Magnetosphere/Bow Shock, Ionosphere/Atmosphere, Space Weather/Space Climate, Space Plasma Physics/Astrophysics, and Complex/Intelligent Systems.