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Lyons Groups of Galaxies

Topic: Astronomy

 From HandWiki - Reading time: 2 min

Short description: Astronomical catalogue

Lyons Groups of Galaxies (or LGG) is an astronomical catalog of nearby groups of galaxies complete to a limiting apparent magnitude B0=14.0 with a recession velocity smaller than 5,500 km/s. The catalogue was obtained from the Lyon-Meudon Extragalactic Database. Two methods were used in group construction: a percolation method derived from Huchra and Geller [1] and a hierarchical method initiated by R. Brent Tully.[2] The catalog is a synthesized version of the two results.

The LGG includes 485 groups and 3,933 member galaxies. Each group contains less than 10 galaxies, and certain members of famous galaxy clusters such as Virgo Cluster, Centaurus Cluster and Perseus-Pisces Supercluster will appear in the catalog.[3]

See also

References

  1. ↑ Huchra, J. P.; Geller, M. J. (June 1982). "Groups of galaxies. I - Nearby groups". Astrophysical Journal. Part 1 257 (June 15, 1982): 423–437. doi:10.1086/160000. Bibcode: 1982ApJ...257..423H. https://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1982ApJ...257..423H&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf. Retrieved March 24, 2012. 
  2. ↑ Tully, R. B. (April 1980). "Nearby groups of galaxies. I - The NGC 1023 group". Astrophysical Journal. Part 1 237 (Apr. 15, 1980): 390–403. doi:10.1086/157881. Bibcode: 1980ApJ...237..390T. https://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1980ApJ...237..390T&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf. Retrieved March 24, 2012. 
  3. ↑ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy & Astrophysics Supplement Series 100: 47–90. Bibcode: 1993A&AS..100...47G. 




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