Estimation of the spin of a supermassive black hole in Sagittarius A*

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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 ≈ 0.9.

作者简介

A. Andrianov

Lebedev Physical Institute

编辑信件的主要联系方式.
Email: andrian@asc.rssi.ru

Astro Space Center 

俄罗斯联邦, Moscow

S. Chernov

Lebedev Physical Institute

Email: chernov@td.lpi.ru

Astro Space Center

俄罗斯联邦, Moscow

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