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Are supernova remnants quasi-parallel or quasi-perpendicular accelerators
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Cairns, I. H. Leckband, J. A. Spangler, S. R. |
| Copyright Year | 1989 |
| Description | Observations of shock waves in the solar system which show a pronounced difference in the plasma wave and particle environment depending on whether the shock is propagating along or perpendicular to the interplanetary magnetic field are discussed. Theories for particle acceleration developed for quasi-parallel and quasi-perpendicular shocks, when extended to the interstellar medium suggest that the relativistic electrons in radio supernova remnants are accelerated by either the Q parallel or Q perpendicular mechanisms. A model for the galactic magnetic field and published maps of supernova remnants were used to search for a dependence of structure on the angle Phi. Results show no tendency for the remnants as a whole to favor the relationship expected for either mechanism, although individual sources resemble model remnants of one or the other acceleration process. |
| File Size | 270110 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19890015577 |
| Archival Resource Key | ark:/13960/t2p60gb0w |
| Language | English |
| Publisher Date | 1989-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Limb Brightening Supernova Remnants Shock Wave Propagation Plasma Acceleration Space Plasmas Plasma Waves Relativistic Plasmas Interplanetary Magnetic Fields Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
