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The annihilation of galactic positrons
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Bussard, R. Rematy, R. |
| Copyright Year | 1978 |
| Description | The probabilities of various channels of galactic positron annihilation were evaluated and the spectrum of the resulting radiation was calculated. The narrow width (FWHM less than 3.2 keV) of the 0.511 MeV line observed from the galactic center implies that a large fraction of positrons should annihilate in a medium of temperature less than 100,000 K and ionization fraction greater than 0.05. HII regions at the galactic center could be possible sites of annihilation. |
| File Size | 3362752 |
| Page Count | 25 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780022094 |
| Archival Resource Key | ark:/13960/t4km43f6v |
| Language | English |
| Publisher Date | 1978-07-01 |
| Access Restriction | Open |
| Subject Keyword | Space Radiation Radiation Spectra Charge Exchange Plasmas Physics Thermalization Energy Absorption H Ii Regions Positronium Positron Annihilation Monte Carlo Method Interstellar Matter Ionization Cross Sections Energetic Particles Galactic Radiation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
