标题： 船尾X射线“喷流”的性质 显示英文标题

标题： The nature of the Vela X-ray "jet"

摘要： 研究了 Markwardt 和 Ögelman (1995) 最近发现的船帆座 X 射线“喷流”的性质。 指出该“喷流”出现在船帆座超新星遗迹不稳定壳层的瑞利-泰勒不稳定性形成的穹顶状变形界面处；因此，“喷流”被解释为遗迹整体壳层的一部分。 讨论了遗迹变形的起源以及整体结构，并基于超新星星体腔爆模型进行了分析。 提出从不同角度观测到的壳层变形在射电、光学和 X 射线波段上表现为贯穿船帆座超新星遗迹的纤维状结构。 提出了 Willmore 等人 (1992) 在船帆座脉冲星周围探测到的硬 X 射线发射星云的可能起源。 显示英文摘要

摘要： The nature of the Vela X-ray "jet", recently discovered by Markwardt & \"Ogelman (1995), is examined. It is suggested that the "jet" arises along the interface of domelike deformations of the Rayleigh-Taylor unstable shell of the Vela supernova remnant; thereby the "jet" is interpreted as a part of the general shell of the remnant. The origin of deformations as well as the general structure of the remnant are discussed in the framework of a model based on a cavity explosion of a supernova star. It is suggested that the shell deformations viewed at various angles appear as filamentary structures visible throughout the Vela supernova remnant at radio, optical, and X-ray wavelengths. A possible origin of the nebula of hard X-ray emission detected by Willmore et al. (1992) around the Vela pulsar is proposed.