Perseus–Pegasus Filament
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.[note 1] This filament is adjacent to the Pisces–Cetus Supercluster Complex.[1][2]
Discovery
[edit]The Perseus–Pegasus Filament was discovered by David Batuski and Jack Burns of New Mexico State University in 1985.[2] 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.[3] Earlier still, parts of this clustering had been reported by Walter E. Bernheimer.[4]
See also
[edit]Notes
[edit]- ^ 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 10,000,000,000 light-years (3.1×109 pc) across.
References
[edit]- ^ "Astronomy & Cosmology - Large Scale Structure of the Universe". whillyard.com. Retrieved 25 May 2017.
- ^ a b Batuski, D. J.; Burns, J. O. (1985). "A possible 300 megaparsec filament of clusters of galaxies in Perseus-Pegasus". The Astrophysical Journal. 299: 5. Bibcode:1985ApJ...299....5B. doi:10.1086/163677. ISSN 0004-637X.
- ^ 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. 49: 259. Bibcode:1937PASP...49..259T. doi:10.1086/124840. ISSN 0004-6280.
- ^ Bernheimer, W. E. (July 1932). "A Metagalactic Cloud between Perseus and Pegasus". Nature. 130 (3273): 132. doi:10.1038/130132a0. ISSN 0028-0836.
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