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The Sloan Great Wall (SGW) is a cosmic structure formed by a giant wall of galaxies (a galaxy filament). Its discovery was announced from Princeton University on October 20, 2003, by J. Richard Gott III , Mario Jurić , and their colleagues, based on data from the Sloan Digital Sky Survey .
House of the Dragon is an American fantasy drama television series created by George R. R. Martin and Ryan Condal for HBO.A prequel to Game of Thrones (2011–2019), it is the second television series in Martin's A Song of Ice and Fire franchise.
Contains about 56,000 galaxies, located 820 million light years away. BOSS Great Wall (BGW) (2016) 1,000,000,000: Structure consisting of 4 superclusters of galaxies. The mass and volume exceeds the amount of the Sloan Great Wall. [22] Perseus–Pegasus Filament (1985) 1,000,000,000: This galaxy filament contains the Perseus–Pisces Supercluster.
This was the first super-large large-scale structure or pseudo-structure in the universe to be discovered. The CfA Homunculus lies at the heart of the Great Wall, and the Coma Supercluster forms most of the homunculus structure. The Coma Cluster lies at the core. [22] [23] Sloan Great Wall (SDSS Great Wall) 2003 z=0.07804 433 Mpc long
The Great Wall (also called Coma Wall), sometimes specifically referred to as the CfA2 Great Wall, is an immense galaxy filament. It is one of the largest known superstructures in the observable universe .
The BOSS Great Wall is one of the largest superstructures in the observable universe, [2] though there are even larger structures known. This figure shows the superclusters of the BOSS Great Wall, on Cartesian coordinates. The large complex has a mean redshift of z ~ 0.47 (z times Hubble length ≈ 6.8 billion light years). [1]
In 2023 astronomers using the SDSS catalog as well as the cosmicflow-4 [15] catalog claimed to have found evidence of an individual BAO bubble with a radius containing some of largest structures known – the Boötes supercluster, the Sloan Great Wall, CfA2 Great Wall, and the Hercules–Corona Borealis Great Wall – which they named Ho'oleilana.
The Sloan Great Wall, discovered in 2003, has a length of 423 Mpc, [11] which is marginally larger than the homogeneity scale as defined above. The Huge-LQG is three times longer than, and twice as wide as the Yadav et al. upper limit to the homogeneity scale, and has therefore been claimed to challenge our understanding of the universe on ...