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Positrons in the galaxy: their births, marriages and deaths
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Skinner, Gerald K. |
| Copyright Year | 2010 |
| Description | High energy (approximately GeV) positrons are seen within cosmic rays and observation of a narrow line at 511 keV shows that positrons are annihilating in the galaxy after slowing down to approximately keV energies or less. Our state of knowledge of the origin of these positrons, of the formation of positronium 'atoms', and of the circumstances of their annihilation or escape from the galaxy are reviewed and the question of whether the two phenomena are linked is discussed. |
| File Size | 839314 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20110007882 |
| Archival Resource Key | ark:/13960/t4vj0hx8b |
| Language | English |
| Publisher Date | 2010-05-24 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Gamma Rays Annihilation Reactions Gamma Ray Observatory Positrons High Energy Interactions Positronium Cosmic Rays Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
