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Gamma-ray and microwave evidence for two phases of acceleration in solar flares
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Bai, T. Ramaty, R. |
| Copyright Year | 1976 |
| Description | Relativistic electrons in large solar flares produce gamma ray continuum by bremsstrahlung and microwave emission by gyrosynchrotron radiation. Using observations of the 1972, August 4 flare, the electron spectrum and the physical properties of the common emitting region of these radiations were evaluated. Information was also obtained on energetic protons in this flare by using gamma ray lines. From the electron spectrum, the proton-to-electron ratio, and the time dependences of the microwave emission, the 2.2 MeV line and the gamma ray continuum, it was concluded that in large solar flares relativistic electrons and energetic nuclei are accelerated by a mechanism which is different from the mechanism which accelerates approximately less than 100 keV electrons in flares. |
| File Size | 10127187 |
| Page Count | 32 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19760012968 |
| Archival Resource Key | ark:/13960/t50g8fm2f |
| Language | English |
| Publisher Date | 1976-03-01 |
| Access Restriction | Open |
| Subject Keyword | Solar Physics Gamma Rays Radiation Spectra Solar Flares Solar Electrons Particle Acceleration Physical Properties Microwaves Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
