| Autor: |
D. S. Mathewson, V. L. Ford, M. A. Dopita, I. R. Tuohy, K. S. Long, D. J. Helfand |
| Rok vydání: |
1983 |
| Zdroj: |
Symposium - International Astronomical Union. 101:541-549 |
| ISSN: |
0074-1809 |
| DOI: |
10.1017/s0074180900034410 |
| Popis: |
Optical identifications of 32 X-ray sources in the Magellanic Clouds confirm that they are SNRs. They are separated into four classes: the evolved, the oxygen-rich, the Balmer-dominated and the Crab-like. High velocity HI emission is observed from an extended region near 0525–66.0. It is suggested that this is produced by a possible Type III supernova which occurred out of the plane of the LMC and on the far side of the disk. The cumulative number-diameter relation for the LMC SNRs shows that they have evolved much faster than expected from the Sedov theory. It is suggested that this apparent “free-expansion” up to quite large diameters is due to the gradual conversion of the kinetic energy of the ejecta into thermal energy as they overtake the decelerating blast wave. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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