AI 中文总结
本研究提出Kerr型虫洞可连接吸积与非吸积星系核,导致物质穿越喉部形成盘状流出,并探讨其观测特征、喷流形成可能及磁场效应。
AI 中文摘要
我们提出了一项对假想致密天体的现象学研究,该天体具有可穿越的Kerr型虫洞几何结构,连接两个渐近不同的区域。假设虫洞的一个口位于具有持续吸积活动的活动星系核(AGN)环境中,而第二个口位于相对宁静、无吸积活动的星系核中。在这种构型下,在AGN侧口附近吸积的物质可能穿越虫洞喉部,并从对面的口涌出。由于流入物质具有角动量,产生的流出预计主要呈赤道面分布,形成与黑洞周围传统吸积盘根本不同的盘状结构。我们根据流出速度相对于当地逃逸速度和轨道速度的大小,考虑了多种动力学状态。讨论了可能的观测表现、热性质、复合特征和磁场效应。特别关注在没有传统吸积盘的情况下喷流形成的可能性。我们明确区分了用于外部流动的弱场、大半径牛顿分类与喉部附近的强场区域,后者应在广义相对论和磁流体动力学框架下处理。我们进一步讨论了从吸积流内边缘继承的比能和比角动量,这些量可能因磁应力和能量提取过程而改变,以及虫洞固有偶极磁场的影响。
英文摘要
We present a phenomenological study of a hypothetical compact object with a traversable 2 Kerr-type wormhole geometry connecting two asymptotically distinct regions. One mouth of the wormhole is assumed to reside in an active galactic nucleus (AGN) environment with ongoing accretion, while the second mouth is located in a comparatively quiescent galactic nucleus without accretion activity. In such a configuration, matter accreted near the AGN-side mouth may traverse the wormhole throat and emerge from the opposite mouth. Because the inflowing matter possesses angular momentum, the resulting outflow is expected to be predominantly equatorial, producing a disk-like structure fundamentally different from a conventional accretion disk around a black hole. Several dynamical regimes are considered depending on the outflow velocity relative to the local escape and orbital velocities. Possible observational manifestations, thermal properties, recombination signatures, and magnetic field effects are discussed. Special attention is given to the possibility of jet formation in the absence of a conventional accretion disk. We explicitly distinguish the weak-field, large-radius Newtonian classification used for the outer flow from the strong-field region near the throat, where the dynamics should be treated in a general-relativistic and magnetohydrodynamic framework. We further discuss the specific energy and angular momentum inherited from the inner edge of the accretion flow, the possible modification of these quantities by magnetic stresses and energy-extraction processes, and the effects of an intrinsic dipolar magnetic field of the wormhole.
Comments18 pages, 5 figures