Abell 223

Abell 223
Observation data (Epoch J2000)
Constellation(s)	Cetus
Right ascension	01^h 37^m 55.9^s[1]
Declination	−12° 49′ 11″[1]
Brightest member	LEDA 947139[2]
Richness class	3[3]
Bautz–Morgan classification	III[3]
Velocity dispersion	1,032 km/s[4]
Redshift	0.2079 ± 0.0008[4]
Distance	2.4 Gly (740 Mpc)[5]
ICM temperature	4.38 ± 0.16[4]
Other designations
RXC J0137.9-1248[1]

Abell 223 is a galaxy cluster. It is located at a distance of 2.4 billion light-years from Earth. The cluster is connected to nearby cluster Abell 222 by a filament of matter. Research has shown that only 20% of that matter is normal. The rest is thought to be dark matter.^[5] This means that this would form the Abell 222/ Abell 223 Supercluster as we understand them.^[6]

See also

• Abell catalogue
• List of Abell clusters

References

1. "ACO 223". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 26 November 2017.
2. "2MASX J01375602-1249106". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 26 November 2017.
3. 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.
4. Durret, F; Laganá, T. F; Adami, C; Bertin, E (2010). "The clusters Abell 222 and Abell 223: A multi-wavelength view". Astronomy and Astrophysics. 517: A94. arXiv:1005.3295. Bibcode:2010A&A...517A..94D. doi:10.1051/0004-6361/201014566. S2CID 118464154.
5. Pete Spotts (5 July 2012). "Cosmic scaffolding uncovered? Scientists find thread of dark matter". The Christian Science Monitor. Christian Science Publishing Society. Retrieved 14 July 2012.
6. Dietrich, Jörg. "The Abell 222/223 Supercluster with dark matter Filament". University of Michigan/University Observatory Munich. Retrieved 24 June 2020.