An empirical model of production and attenuation of fluorescence light in atmosphere for satellite-based Ultra High Energy Cosmic Ray experiments

E. Strazzeri, O. Catalano, Boris Sbarufatti

Research output: Contribution to journalArticle

Abstract

In the context of detection of Ultra High Energy Cosmic Ray (UHECR) showers from space the details of fluorescence light production and transmission in the atmosphere are given. An analytical model of the fluorescence yield, in dependence on nitrogen molecular parameters and the atmospheric conditions, is presented. Seasonal and geographical variations of the total fluorescence photon yield between 300 nm and 400 nm in air excited by 0.85 MeV electrons are shown as a function of the altitude, using different atmospheric models. In the frame of a satellite-based UHECR experiment the fluorescence yield has been corrected by the overall atmospheric transmission which takes into account, in the simplest approximation, the wavelength-dependent scattering and absorption of the fluorescence light from air molecules, from stratospheric ozone, and from aerosol. The effect of the atmospheric attenuation on the fluorescence yield is shown as a function of the altitude of the emission point of light.

Original languageEnglish (US)
Pages (from-to)299-317
Number of pages19
JournalInternational Journal of Modern Physics D
Volume20
Issue number3
DOIs
StatePublished - Mar 1 2011

Fingerprint

Empirical Model
Cosmic Rays
Attenuation
Fluorescence
cosmic ray
Atmosphere
High Energy
cosmic rays
fluorescence
attenuation
atmospheres
atmosphere
Experiment
energy
experiment
atmospheric attenuation
atmospheric models
Ozone
air
cosmic ray showers

All Science Journal Classification (ASJC) codes

  • Mathematical Physics
  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

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abstract = "In the context of detection of Ultra High Energy Cosmic Ray (UHECR) showers from space the details of fluorescence light production and transmission in the atmosphere are given. An analytical model of the fluorescence yield, in dependence on nitrogen molecular parameters and the atmospheric conditions, is presented. Seasonal and geographical variations of the total fluorescence photon yield between 300 nm and 400 nm in air excited by 0.85 MeV electrons are shown as a function of the altitude, using different atmospheric models. In the frame of a satellite-based UHECR experiment the fluorescence yield has been corrected by the overall atmospheric transmission which takes into account, in the simplest approximation, the wavelength-dependent scattering and absorption of the fluorescence light from air molecules, from stratospheric ozone, and from aerosol. The effect of the atmospheric attenuation on the fluorescence yield is shown as a function of the altitude of the emission point of light.",
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