论文标题
高能天体物理学中GR-MHD的方面
Aspects of GR-MHD in High-Energy Astrophysics
论文作者
论文摘要
这项工作重点介绍了一般相对论（GR） - 镁水力动力学（MHD）在高能天体物理学中的某些关键方面。我们讨论了GR-HD对应物配方的相关性，该配方探讨了GR-MHD的几何厚度磁盘模型和构成积分构型物理的约束。描述了绕中央超级黑洞（SMBH）旋转的摩托车簇的模型。这些轨道的Tori聚集体形成了与复杂的不稳定性过程相关的几何厚，压力支持，完美的流体托架，包括Tori Colulision出现以及赋予与活性星系核的嵌入物质环境相关的广泛活动。一些音符包含在与原始喷气机的聚集体中，这些注释由与几何厚的托里相关的开放式脱牙溶液表示。对高能天体物理学应用中GR-MHD公式的某些关键概念的探索始于讨论最普遍的Einstein-Euler-Maxwell系统的初始数据问题，该系统以相对论的几何背景来解决该问题。然后以准线性双曲线形式设置该系统，并参数还原过程。然后，考虑了对自我磨削系统的稳定性问题的分析，并确定的对称性考虑了准线性双曲线发作的几何部分的扰动。因此，我们专注于理想的GR-MHD和自我散发等离子体球。我们以几何厚的GR-HD磁盘的模型结束，在其GR-HD公式中的Kerr SMBH周围引诱，并在磁盘的力平衡方程中包括环形磁场的影响，确定其在Tori拓扑和稳定性中的影响
This work focuses on some key aspects of the General Relativistic (GR)-magnetohydrodynamic (MHD) applications in High-Energy Astrophysics. We discuss the relevance of the GR-HD counterparts formulation exploring the geometrically thick disk models and constraints of the GR-MHD shaping the physics of accreting configurations. Models of clusters of tori orbiting a central super-massive black hole (SMBH) are described. These orbiting tori aggregates form sets of geometrically thick, pressure supported, perfect fluid tori, associated to complex instability processes including tori collision emergence and empowering a wide range of activities related expectantly to the embedding matter environment of Active Galaxy Nuclei. Some notes are included on aggregates combined with proto-jets, represented by open cusped solutions associated to the geometrically thick tori. This exploration of some key concepts of the GR-MHD formulation in its applications to High-Energy Astrophysics starts with the discussion of the initial data problem for a most general Einstein-Euler-Maxwell system addressing the problem with a relativistic geometric background. The system is then set in quasi linear hyperbolic form, and the reduction procedure is argumented. Then, considerations follow on the analysis of the stability problem for self-gravitating systems with determined symmetries considering the perturbations also of the geometry part on the quasi linear hyperbolic onset. Thus we focus on the ideal GR-MHD and self-gravitating plasma ball. We conclude with the models of geometrically thick GR-HD disks gravitating around a Kerr SMBH in their GR-HD formulation and including in the force balance equation of the disks the influence of a toroidal magnetic field, determining its impact in tori topology and stability
