A Parametric Study of Interstellar Helium Atoms Incident upon the Earth.

Abstract

Calculations of the intensity of interstellar helium atoms at earth orbit are made with a model which takes into account perturbation of the Maxwell-Boltzmann velocity distribution by solar gravity and photoionization loss. Seasonal sky maps are presented and assessments of the sensitivity of the intensity of atoms in the vicinity of the earth to the various parameters of the gas are given. (author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 28, 1981
Accession Number
ADA094383

Entities

People

  • Robert Meier

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Accuracy
  • Background Radiation
  • Celestial Brightness
  • Coordinate Systems
  • Differential Cross Sections
  • Earth Orbits
  • Intensity
  • Ionization
  • Measurement
  • Observation
  • Orbits
  • Photoionization
  • Radiation
  • Radiation Pressure
  • Seasonal Variations
  • Solar System
  • Solar Wind

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Molecular Photonics/Laser Physics
  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Space
  • Space - Orbital Debris