Perseus–Pegasus Filament Explained

The Perseus–Pegasus Filament is a galaxy filament containing the Perseus–Pisces Supercluster and stretching for roughly a billion light-years (or over 300/h Mpc). Currently, it is considered to be one of the largest known structures in the universe.^[1] This filament is adjacent to the Pisces–Cetus Supercluster Complex.^{[2] [3]}

Discovery

The Perseus–Pegasus Filament was discovered by David Batuski and Jack Burns of New Mexico State University in 1985.It is likely that Clyde W. Tombaugh, of the Lowell Observatory, discovered its existence in 1936 while conducting his search for trans-Saturnian planets. He reported it as the Great Perseus-Andromeda stratum of Extra-Galactic Nebulae.^[4] Earlier still, parts of this clustering had been reported by .^[5]

See also

• Abell catalogue
• Large-scale structure of the universe
• Galaxy filament
• Supercluster
• Big Ring

Notes and References

1. The reference cited claims the Perseus-Pisces Filament as the largest known structure in the universe. However, various reports cite the Hercules–Corona Borealis Great Wall as the largest at 10000000000ly across.
2. Web site: Astronomy & Cosmology - Large Scale Structure of the Universe. whillyard.com. 25 May 2017.
3. Batuski . D. J. . Burns . J. O. . 1985 . A possible 300 megaparsec filament of clusters of galaxies in Perseus-Pegasus . . en . 299 . 5 . 1985ApJ...299....5B . 10.1086/163677 . 0004-637X.
4. Tombaugh . C. W. . October 1937 . The Great Perseus-Andeomeda Stratum of Extra-Galactic Nebulae and Certain Clusters of Nebulae Therein as Observed at the Lowell Observatory . Publications of the Astronomical Society of the Pacific . en . 49 . 259 . 1937PASP...49..259T . 10.1086/124840 . 0004-6280.
5. Bernheimer . W. E. . July 1932 . A Metagalactic Cloud between Perseus and Pegasus . Nature . en . 130 . 3273 . 132 . 10.1038/130132a0 . 0028-0836.