arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0804.1912astro-ph
收藏

Blandford-Znajek机制与Penrose过程

Blandford-Znajek mechanism versus Penrose process

S. S. Komissarov

备注：
To be published in the proceedings of the APCTP Winter School on Black Hole Astrophysics, 24-29 Jan 2008, Daejeon and Pohang, Korea
发表信息：
J.Korean Phys.Soc.54:2503-2512,2009
阅读 PDF
arXiv 页面 ↗HTML 原文 ↗

摘要：

在理论发现后的三十年里，提取黑洞转动能量的Blandford-Znajek过程已经成为现代相对论天体物理学的基石之一。然而，长期以来，它的物理学并没有得到很好的理解，这也是事实，自20世纪90年代以来围绕它的争议就是明证。由于过去十年中许多理论家的努力，情况正在逐步改善。在这个演讲中，我试图以一种或多或少系统化、严谨而又相对简单的方式来解释这个过程的关键因素。一个特别注意的是支付的Blandford-Znajek和彭罗斯过程之间的异同。为此，我提出了能量逆流的概念。视界膜的概念被真空作为电磁活动介质的概念所取代。本文还讨论了黑洞能层中电磁波的负相速效应。

英文摘要：

During the three decades since its theoretical discovery the Blandford-Znajek process of extracting the rotational energy of black holes has become one of the foundation stones in the building of modern relativistic astrophysics. However, it is also true that for a long time its physics was not well understood, as evidenced by the controversy that surrounded it since 1990s. Thanks to the efforts of many theorists during the last decade the state of affairs is gradually improving. In this lecture I attempt to explain the key ingredients of this process in more or less systematic, rigorous, and at the same time relatively simple fashion. A particular attention is paid to the similarities and differences between the Blandford-Znajek and Penrose processes. To this purpose I formulate the notion of energy counter flow. The concept of horizon membrane is replaced with the concept of vacuum as an electromagnetically active medium. The effect of negative phase velocity of electromagnetic waves in the black hole ergosphere is also discussed.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

↑