| タイトル | A model of the pre-Sedov expansion phase of supernova remnant-ambient plasma coupling and X-ray emission from SN 1987A |
| 著者（英） | Spicer, D. S.; Maran, S. P.; Clark, R. W. |
| 著者所属（英） | NASA Goddard Space Flight Center|Naval Research Lab. |
| 発行日 | 1990-06-20 |
| 言語 | eng |
| 内容記述 | This paper examines the mechanism responsible for coupling supernova (SN) remnant to the ambient medium during the pre-Sedov or the so-called free expansion phase, immediately following the progenitor explosion. A theory is developed for the interaction of an SN piston with the ambient medium during the pre-Sedov phase. The possibility of X-ray production by the high-speed portion of the piston during this phase is investigated. The relevant observations of high-energy emissions from the SN 1987A, including the X-ray spectrum, luminosity, and temporal development, are considered. It is shown that the commonly assumed snowplow model for SNR evolution is valid, because of the action of a variety of collisionless two-stream instabilities that permit the coupling of the ambient plasma with SNR. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 90A37271 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/355901 |
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