SN1987A的双星模型和“硬x-ray超”

BINARY MODEL AND "HARD X-RAY EXCESS" FROM SN1987A

本文通过分析SN 1987 A爆发前SK 69°202视场的颜色,论证了SN 1987 A的前身星存在一颗伴星.因而,在双星模型的假定下,讨论抛射物被伴星吸积的过程以及形成的准稳态弓形激波的结构,拟合了Ginga卫星的观测谱,合理地解释了4—10 keV低能硬X-ray辐射和早期的光度时变现象.

In this paper, we demonstate the existence of the companion of SN1987A by analysing the colour system in SK69°202. Assumed binary model, the accretion process that the companion accrets the ejecta from SN1987A is discussed and axial symmetry quasistationary shock wave structure is determined. The spectrum detected by satellite GINGA in Japan is imitated. The hard X-ray emission below 10 kev and early luminosity variation are reasonably explained.