论文标题

相对论喷气机中循环极化状态的自旋四角形形式主义

Spin Tetrad Formalism Of Circular Polarization States In Relativistic Jets

论文作者

Gamble Jr, Ronald S.

论文摘要

活跃银河核(AGN)的相对论喷射已经在高能天体物理学社区中引起了极大的兴趣,因为它们具有独特的动态性和令人难以置信的辐射能力。从超级质量的黑洞发出,并同样积聚紧凑的密集物体。对相对论喷射形成的总体共识指出,高洛伦兹因子在高洛伦兹因子处的加速流出是由系统的积聚磁盘与旋转大量中央物体的框架拖拉作用之间的复杂关系产生的。本文将为使用自旋四型形式主义定义的圆极化状态提供一个基础,从而有助于描述从中央发动机发出的射流中的角动量通量。具有正宇宙恒定背景的KERR时空的表示,用于制定自旋四形形式。还将提供有关喷气形成中未解决的问题的讨论,以及我们如何将AGN极化图的多方法观测来指导未来的理论描述。

Relativistic jets from active galactic nuclei (AGN) have been of peak interest in the high-energy astrophysics community for their uniquely dynamic nature and incredible radiative power; emanating from supermassive black holes and similarly accreting compact dense objects. An overall consensus on relativistic jet formation states that accelerated outflow at high Lorentz factors are generated by a complex relationship between the accretion disk of the system and the frame-dragging effects of the rotating massive central object. This paper will provide a basis for which circular polarization states, defined using a spin tetrad formalism, contribute to a description for the angular momentum flux in the jet emanating from the central engine. A representation of the Kerr spacetime with positive cosmological constant background is used in formulating the spin tetrad forms. A discussion on unresolved problems in jet formation and how we can use multi-method observations with polarimetry of AGN to direct future theoretical descriptions will also be given.

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