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A model for the uhe gamma-rays from hercules x-1
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Eichler, D. Vestrand, W. T. |
| Copyright Year | 1985 |
| Description | An outburst of gamma rays with energies E gamma 10 to the 12th power eV was recently detected from the X-ray pulsar Hercules X-1. The outburst had a 3 minute duration and occurred at a time during the 35 day X-ray modulation that is associated with X-ray turnon. The gamma rays also have the same 1.24 second modulation that is observed at X-ray energies. Subsequently a 40 minute outburst was detected at E gamma 10 to the 14th power eV. The interaction of ultrahigh energy particles with a precessing accretion disk explain the observed gamma ray light curve. The constraints one can place on acceleration mechanisms and the possibility that the UHE particles are accelerated by shocks in an accretion flow are explained. |
| File Size | 280786 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850025621 |
| Archival Resource Key | ark:/13960/t83j8bq5f |
| Language | English |
| Publisher Date | 1985-08-01 |
| Access Restriction | Open |
| Subject Keyword | Space Radiation Interstellar Radiation Cosmic Ray Showers Neutron Stars Pulsars X Ray Astronomy Gamma Ray Bursts Accretion Disks Relativistic Effects Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
