arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2604.05085astro-ph.HE
收藏

接近高速旋转黑洞的爱因斯坦引力理论新测试方法

A New Approach for Testing Einstein's Theory of Gravity Close to Rapidly Spinning Black Holes

Washington University in St. Louis(华盛顿大学)

Shravan Vengalil Menon, Kun Hu, Henric Krawczynski

AI总结:

本文提出利用X射线双星中高速旋转黑洞的碰撞Penrose过程新光谱特征,通过极化测量验证爱因斯坦引力理论并测量黑洞自转。

摘要:

本文提出利用X射线双星中高速旋转黑洞的碰撞Penrose过程新光谱特征,通过极化测量验证爱因斯坦引力理论并测量黑洞自转。

英文摘要:

The Penrose process and the collisional Penrose process involve particles decaying or interacting very close to a spinning black hole, respectively, during which some particles are pushed into negative energy trajectories and fall into the black hole while others gain that energy and escape the system. These two processes are difficult to observe as they occur very rarely by chance. Here we report a new observational signature of similar, but less extreme processes occurring in and near the ergospheres of rapidly spinning black holes. We find that the reflection of the thermal emission from a geometrically thin, optically thick accretion disk can lead to the formation of a power-law component, even in the absence of a corona. Unlike the well-known Penrose processes, the scattering particles lose a good fraction of their energy, but are not pushed into negative energy trajectories. We emphasize that this new component has distinct spectral and polarimetric properties that can be used for its identification as long as it out-competes other power-law emission components. We emphasize that the new component needs to be taken into account when interpreting spectral and spectropolarimetric observations of black holes. The detection and unambiguous identification of the new component with current or future broadband X-ray spectral and spectropolarimetric missions can open a new window into testing Einstein's theory of gravity close to the edges of black holes, and opens up new opportunities to constrain black hole spins and inclinations.

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。

↑