Astronomy:Abell 2667

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Short description: Galaxy cluster in the constellation Sculptor
Abell 2667
Abell 2667HSTFull.jpg
Abell 2667 from Hubble Space Telescope. Comet Galaxy is top-left (blue).
Observation data (Epoch J2000)
Constellation(s)Sculptor
Right ascension 23h 51m 42s[1]
Declination−26° 00′ 00″[1]
Richness class3[2]
Bautz–Morgan classificationI [2]
Redshift0.23000[3]
Distance
(co-moving)		927 Mpc (3,023 Mly) h−10.705[3]
See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters
The location of Abell 2667 (circled in blue)

Abell 2667 is a galaxy cluster. It is one of the most luminous galaxy clusters in the X-ray waveband known at a redshift about 0.2.

This cluster is also a well-known gravitational lens.

On 2 March 2007, a team of astronomers reported the detection of the Comet Galaxy in this cluster. [4] This galaxy is being ripped apart by the cluster's gravitational field and harsh environment. The finding sheds light on the mysterious process by which gas-rich spiral-shaped galaxies might evolve into gas-poor irregular- or elliptical-shaped galaxies over billions of years.

See also

References

  1. ↑ 1.0 1.1 "HEASARC Browse". http://heasarc.gsfc.nasa.gov/db-perl/W3Browse/w3table.pl?tablehead=name%3Dabell&Action=More+Options. 
  2. ↑ 2.0 2.1 Abell, George O.. "A catalog of rich clusters of galaxies". Astrophysical Journal Supplement Series 70 (May 1989): 1–138. doi:10.1086/191333. ISSN 0067-0049. Bibcode: 1989ApJS...70....1A. 
  3. ↑ 3.0 3.1 "NED results for object ABELL 2667". NASA/IPAC Extragalactic Database (NED). http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=Abell+2667&extend=no. 
  4. ↑ Cortese, L; Marcillac, D; Richard, J; Bravo-Alfaro, H; Kneib, J. -P; Rieke, G; Covone, G; Egami, E et al. (2007). "The strong transformation of spiral galaxies infalling into massive clusters at z ~ 0.2". Monthly Notices of the Royal Astronomical Society 376 (1): 157–172. doi:10.1111/j.1365-2966.2006.11369.x. Bibcode: 2007MNRAS.376..157C. 

External links

Coordinates: Sky map 23h 51m 42s, −26° 00′ 00″



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