Abell 2667

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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 class 3 [2]
Bautz–Morgan classification I [2]
Redshift 0.23000 [3]
Distance 927  Mpc (3,023  Mly) h−1
0.705 [3]
The location of Abell 2667 (circled in blue) Abell2667Location.png
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 and is a well-known gravitational lens.

Contents

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.

Abell 2667 is similar to many other low-redshift and cool-core galaxy clusters in terms of the cooling processes that happen at its center, which consists of a brightest cluster galaxy (BCG) and a supermassive black hole (SMBH). [5]

Abell 2667 acts as an intense gravitational telescope, lensing red-shifted galaxies behind it. [6] Although the warped galaxies may appear to be part of this galaxy cluster, they are in fact significantly more distant. [7]

See also

References

  1. 1 2 "HEASARC Browse". Result for Abell 2667. Retrieved 2010-10-03.
  2. 1 2 Abell, George O.; Corwin, Harold G. Jr.; Olowin, Ronald P. (May 1989). "A catalog of rich clusters of galaxies". Astrophysical Journal Supplement Series. 70 (May 1989): 1–138. Bibcode:1989ApJS...70....1A. doi: 10.1086/191333 . ISSN   0067-0049.
  3. 1 2 "NED results for object ABELL 2667". NASA/IPAC Extragalactic Database (NED). Retrieved March 17, 2012.
  4. ↑ Cortese, L; Marcillac, D; Richard, J; Bravo-Alfaro, H; Kneib, J. -P; Rieke, G; Covone, G; Egami, E; Rigby, J; Czoske, O; Davies, J (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. arXiv: astro-ph/0703012 . Bibcode:2007MNRAS.376..157C. doi: 10.1111/j.1365-2966.2006.11369.x . S2CID   17152868.
  5. ↑ Lepore, M.; Pinto, C.; Tozzi, P.; Gaspari, M.; Gastaldello, F.; Liu, A.; Rosati, P.; van Weeren, R.; Cresci, G.; Iani, E.; Rodighiero, G. (2024). "Cooling rate and turbulence in the intracluster medium of the cool-core cluster Abell 2667". Astronomy & Astrophysics. 694: A115. arXiv: 2410.16831 . doi:10.1051/0004-6361/202452396.
  6. ↑ Cao, Shuo; Covone, Giovanni; Jullo, Eric; Richard, Johan; Izzo, Luca; Zhu, Zong-Hong (2014). "Source plane reconstruction of the giant gravitational arc in Abell 2667: A candidate Wolf-Rayet galaxy at z~1". arXiv: 1410.6594 . doi:10.1088/0004-6256/149/1/3.{{cite journal}}: Cite journal requires |journal= (help)
  7. ↑ "Illusion and Evolution - NASA Science". 2008-11-07. Retrieved 2025-01-31.
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