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The Schwarzschild radius or the gravitational radius is a physical parameter in the Schwarzschild solution to ... SMBH in Andromeda Galaxy ... Visible universe, ...
This would make its Schwarzschild radius about 1.97 AU. Black Hole Disk Flares In Galaxy OJ 287 (1:22; animation; 28 April 2020) Interferometric observations of OJ287 by the VLBA resolved with the CHIRP algorithm and another algorithm by a group from Boston university. [7]
Any such model requires that the Hubble radius of the observable universe be equal to its Schwarzschild radius, that is, the product of its mass and the Schwarzschild proportionality constant. This is indeed known to be nearly the case; at least one cosmologist, however, considers this close match to be a coincidence. [3]
[5] [6] As an elliptical galaxy, the galaxy is a spheroid rather than a flattened disc, accounting for the substantially larger mass of M87. Within a radius of 32 kiloparsecs (100,000 light-years), the mass is (2.4 ± 0.6) × 10 12 times the mass of the Sun, [47] which is double the mass of the Milky Way galaxy. [53]
The host galaxy of S5 0014+81 is a giant ... The Schwarzschild radius of this black hole is 120 ... (near the end of the Black Hole Era of the universe, ...
Size comparison of the event horizons of the black holes of TON 618 and Phoenix A.The orbit of Neptune (white oval) is included for comparison. As a quasar, TON 618 is believed to be the active galactic nucleus at the center of a galaxy, the engine of which is a supermassive black hole feeding on intensely hot gas and matter in an accretion disc.
Cygnus X-1 (abbreviated Cyg X-1) [11] is a galactic X-ray source in the constellation Cygnus and was the first such source widely accepted to be a black hole. [12] [13] It was discovered in 1964 during a rocket flight and is one of the strongest X-ray sources detectable from Earth, producing a peak X-ray flux density of 2.3 × 10 −23 W/(m 2 ⋅Hz) (2.3 × 10 3 jansky).
Hence, when we observe a distant background galaxy (or some other celestial body), we may be lucky to see the same image of the galaxy multiple times, albeit more and more distorted. [11] A complete mathematical description for how light bends around the equatorial plane of a Kerr black hole was published in 2021. [12]