Centaurus Cluster
Not to be confused with Hydra-Centaurus Supercluster or Centaurus A/M83 Group.
| Centaurus Cluster | |
|---|---|
|
Chandra X-ray image showing the inner 6.7 arcminutes of the core of the Centaurus Cluster. This image shows the hot intracluster medium, at temperatures of a few tens of million Kelvin. | |
| Observation data (Epoch J2000) | |
| Constellation(s) | Centaurus |
| Right ascension | 12h 48m 51.8s[1] |
| Declination | −41° 18′ 21″[1] |
| Brightest member | NGC 4696 |
| Number of galaxies | ~100[1] |
| Richness class | 0[2] |
| Bautz-Morgan classification | I-II [2] |
| Redshift | 0.01140 (3 418 km/s)[1] |
| Distance (co-moving) |
52.4 Mpc (170.9 Mly) h−1 0.705 [1] |
| X-ray flux | 15.7×10−11 erg s−1 cm−2 (0.5—2 keV) [1] |
| Other designations | |
| Abell 3526[1] | |
| See also: Galaxy groups, Galaxy clusters, List of galaxy clusters | |
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NGC 4696: a cosmic question mark. Credit: ESA/Hubble and NASA
The Centaurus Cluster (A3526) is a cluster of hundreds of galaxies, located approximately 170 million light years away in the Centaurus constellation. The brightest member galaxy is the elliptical galaxy NGC 4696 (~11m). The Centaurus cluster shares its supercluster, the Hydra-Centaurus Supercluster, with IC4329 Cluster and Hydra Cluster.
The cluster consists of two different sub-groups of galaxies with different velocities.[3] Cen 30 is the main subgroup containing NGC 4696. Cen 45 is moving at 1500 km/s relative to Cen 30, and is believed to be merging with the main cluster.
See also
External links
- The Centaurus Cluster on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
References
- 1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database". Results for Centaurus Cluster. Retrieved 2006-10-19.
- 1 2 Abell, George O.; Corwin, Harold G., Jr.; Olowin, Ronald P. (May 1989). "A catalog of rich clusters of galaxies" (PDF). Astrophysical Journal Supplement Series. 70 (May 1989): 1–138. Bibcode:1989ApJS...70....1A. doi:10.1086/191333. ISSN 0067-0049. Retrieved March 13, 2012.
- ↑ Lucey J.R., Currie M.J., Dickens R.J. (1986). "The Centaurus cluster of galaxies. II - The bimodal velocity structure". Monthly Notices of the Royal Astronomical Society. 221: 453–472. Bibcode:1986MNRAS.221..453L. doi:10.1093/mnras/221.2.453.
Coordinates: 
12h 48m 49.3s, −41° 18′ 40″
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