TO
1 - 25 of 5
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
 | Sokolsky, Pierre | Comparison of air fluorescence and ionization measurements of E.M. shower depth profiles: test of a UHECR detector technique | Measurements are reported on the fluorescence of air as a function of depth in electromagnetic showers initiated by bunches of 28.5 GeV electrons. The light yield is compared with the expected and observed depth profiles of ionization in the showers. It validates the use of atmospheric fluorescence... | Air fluorescence; Electromagnetic shower; Ultra-high energy cosmic rays; Ionization | 2006-02 |
| 2 |
 | Sokolsky, Pierre | Effect of clouds on apertures of space-based air fluorescence detectors | Space-based ultra-high-energy cosmic ray detectors observe fluorescence light from extensive air showers produced by these particles in the troposphere. Clouds can scatter and absorb this light and produce systematic errors in energy determination and spectrum normalization. We study the possibilit... | Fluorescence; Cloud detection; Extensive air showers | 2004-01 |
| 3 |
 | Sokolsky, Pierre | Energy estimation of UHE cosmic rays using the atmospheric fluorescence technique | We use the CORSIKA air shower simulation program to review the method for assigning energies to ultra-high energy (UHE) cosmic rays viewed with the air fluorescence technique. This technique uses the atmosphere as a calorimeter, and we determine the corrections that must be made to the calorimetric ... | Fluorescence; Energy estimation; Ultra-high energy cosmic rays | 2000-08 |
| 4 |
 | Sokolsky, Pierre | Measurement of the flux of ultra high energy cosmic rays by the stereo technique | The High Resolution Fly's Eye (HiRes) experiment has measured the flux of ultrahigh energy cosmic rays using the stereoscopic air fluorescence technique. The HiRes experiment consists of two detectors that observe cosmic ray showers via the fluorescence light they emit. HiRes data can be analyzed i... | Ultrahigh energy cosmic rays; Fluorescence; Energy spectrum; GZK cutoff | 2009-08 |
| 5 |
 | Sokolsky, Pierre | Search for correlations between HiRes stereo events and active galactic nuclei | We have searched for correlations between the pointing directions of ultrahigh energy cosmic rays observed by the High Resolution Fly's Eye experiment and Active Galactic Nuclei (AGN) visible from its northern hemisphere location. No correlations, other than random correlations, have been found.We ... | Ultrahigh energy cosmic rays; Anisotropy | 2008-11 |
1 - 25 of 5