伽马射线暴中的超长X射线平台和棘核范例
An Extra Long X-Ray Plateau in a Gamma-Ray Burst and the Spinar Paradigm
摘要:
最近发现的伽马射线暴GRB 070110显示出异常的X射线辐射X射线余辉--即,X射线平台-观察20,000 s。我们发现,所观察到的高原的属性可以自然地解释的模型与一个准平衡坍缩的物体,其平衡是由离心力和引力的平衡,其演变是由它的磁场。如果这个模型是正确的,那么在1小时内,斯威夫特X射线望远镜记录到的辐射来自一个尺寸小于史瓦西半径的物体!
英文摘要:
The recently discovered gamma-ray burst GRB 070110 displayed an extraordinary X-ray afterglow with Xray radiation-i.e., an X-ray plateau-observed for 20,000 s. We show that the observed properties of the plateau can be naturally interpreted in terms of the model with a spinar-a quasi-equilibrium collapsing object whose equilibrium is maintained by the balance of centrifugal and gravitational forces and whose evolution is determined by its magnetic field. If this model is true, then for 1 hr, the Swift X-ray telescopes recorded radiation from an object with a size smaller than the Schwarzschild radius!
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