人马座 A* 中超大质量黑洞的自旋估计

IF 1.1 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Astronomy Reports Pub Date : 2024-07-04 DOI:10.1134/S106377292470032X

A. S. Andrianov, S. V. Chernov

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引用次数: 0

摘要

摘要2017年4月，事件地平线望远镜接收到了人马座A*源中一个超大质量黑洞的图像。该图像由一个环状结构组成，其中包含三个亮度增加的区域（斑点）。如果我们假设这些斑点与黑洞事件视界附近的耀斑有关，那么我们就可以估算出它的自旋。我们的估算值为（a）（约0.9\）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Estimation of the Spin of a Supermassive Black Hole in Sagittarius A*

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Estimation of the Spin of a Supermassive Black Hole in Sagittarius A*

In April 2017, the Event Horizon telescope received an image of a supermassive black hole in the Sagittarius A* source. This image consists of a ring-like structure that contains three areas with increased brightness (spots). If we assume that these spots are associated with flares near the event horizon of a black hole, then we can estimate its spin. Our estimate gives a value of the order of \(a \approx 0.9\).

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来源期刊

Astronomy Reports 地学天文-天文与天体物理

CiteScore

1.40

自引率

20.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Astronomy Reports is an international peer reviewed journal that publishes original papers on astronomical topics, including theoretical and observational astrophysics, physics of the Sun, planetary astrophysics, radio astronomy, stellar astronomy, celestial mechanics, and astronomy methods and instrumentation.