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 ≈ 0.9.

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Journal
Астрономический журнал
Published
2024-09-27
DOI
https://doi.org/10.31857/s0004629924030017
Primary Topic
Astrophysical Phenomena and Observations
Type
article
Field-Weighted Citation Impact
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article

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

С. В. Чернов, A. S. Andrianov
Астрономический журнал
Astrophysical Phenomena and Observations
article

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

С. В. Чернов, A. S. Andrianov
article en

Abstract

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.

Астрономический журналVol. 101(3)
P.N. Lebedev Physical Institute of the Russian Academy of Sciences (RU)
Openalex Percentile: Top 88%
Astrophysical Phenomena and Observations
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