来自能层和M87喷流剖面的非束缚测地线
Unbound geodesics from the ergosphere and the M87 jet profile
摘要：
假设位于活动星系核Messier 87（M87）核心的黑洞的自旋$a$取能层克尔时空体积最大化的值，我们发现结果与最近通过高分辨率干涉测量获得的关于喷流起源的观测结果一致，喷流起源位于最内侧稳定的圆形轨道直径内。此外，我们发现一个流动的未绑定测地线发出的ergoregion能够框架最近获得的描述从这个中央发动机发射的相对论性喷流观测到的配置文件在大规模的最佳拟合。
英文摘要：
Assuming that the spin $a$ of the black hole, presumably located at the core of the active galactic nuclei Messier 87 (M87), takes the value which maximises the ergospheric volume of the Kerr spacetime, we find results compatible with the recent observations obtained by high resolution interferometry on the origin of the jet, which would be located inside the innermost stable circular orbit diameter. Moreover, we find a flow of unbound geodesics issued from the ergoregion able to frame the best fits at large scale recently obtained for describing the observed profile of the relativistic jet launched from this central engine.
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