Sculptor Wall

The local universe, including the Sculptor Wall
The local universe, including the Sculptor Superclusters
2MASS distance map of the local universe, including the primary Sculptor Supercluster

The Sculptor Wall is a superstructure of galaxies ("wall of galaxies") relatively near to the Milky Way Galaxy (redshift of approximately z=0.03), also known as the Sculptor superclusters.[1][2]

The superstructure is also called "Southern Great Wall", "Great Southern Wall", "Southern Wall", in reference to the Northern Great Wall, or just "Great Wall" — the CfA2 Great Wall. The structure is 8000 km/s long, 5000 km/s wide, 1000 km/s deep, in redshift space dimensions.[3][4] Because these structures are so large, it is convenient to estimate their size by measuring their redshift; using a value of 67.8 for Hubble's Constant, the size of the structure is approximately 100Mpc long by 70Mpc wide by 10Mpc deep.

References

  1. ↑ Taotao Fang1, David A. Buote1, Philip J. Humphrey1, Claude R. Canizares2, Luca Zappacosta3, Roberto Maiolino4, Gianpiero Tagliaferri5 and Fabio Gastaldello; CONFIRMATION OF X-RAY ABSORPTION BY WARM-HOT INTERGALACTIC MEDIUM IN THE SCULPTOR WALL; 2010 ApJ 714 1715 , doi:10.1088/0004-637X/714/2/1715 , Bibcode: 2010ApJ...714.1715F , arXiv:1001.3692 ,
  2. ↑ Fairall, A. P., Palumbo, G. G. C., Vettolani, G., Kauffman, G., Jones, A., & Baiesi-Pillastrini, G., Largescale Structure in the Universe - Plots from the Updated Catalogue of Radial Velocities of Galaxies and the Southern Redshift Catalogue Journal: R.A.S. MONTHLY NOTICES V.247, NO.2/NOV15, P. 23P, 1990. Bibliographic Code: Bibcode: 1990MNRAS.247P..21F (slices 8 and 10 under SGH)
  3. ↑ Unveiling large-scale structures behind the Milky Way. Astronomical Society of the Pacific Conference Series, Vol. 67; Proceedings of a workshop at the Observatoire de Paris-Meudon; 18–21 January 1994; San Francisco: Astronomical Society of the Pacific (ASP); c1994; edited by Chantal Balkowski and R. C. Kraan-Korteweg, p.21 ; Visualization of Nearby Large-Scale Structures ; Fairall, A. P., Paverd, W. R., & Ashley, R. P. ; Bibcode: 1994ASPC...67...21F
  4. ↑ 'Astrophysics and Space Science', Volume 230, Issue 1-2, pp. 225-235 Large-Scale Structures in the Distribution of Galaxies 08/1995 Bibcode: 1995Ap&SS.230..225F


This article is issued from Wikipedia - version of the Thursday, May 21, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.