Astronomy:Abell 223
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Short description: Galaxy cluster in the constellation Cetus
| Abell 223 | |
|---|---|
| Observation data (Epoch J2000) | |
| Constellation(s) | Cetus |
| Right ascension | 01h 37m 55.9s[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 (co-moving) | 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
References
- ↑ 1.0 1.1 1.2 "ACO 223". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=ACO+223.
- ↑ "2MASX J01375602-1249106". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=2MASX+J01375602-1249106.
- ↑ 3.0 3.1 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. doi:10.1086/191333. ISSN 0067-0049. Bibcode: 1989ApJS...70....1A.
- ↑ 4.0 4.1 4.2 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. doi:10.1051/0004-6361/201014566. Bibcode: 2010A&A...517A..94D.
- ↑ 5.0 5.1 Pete Spotts (5 July 2012). "Cosmic scaffolding uncovered? Scientists find thread of dark matter.". The Christian Science Monitor. Christian Science Publishing Society. http://www.csmonitor.com/Science/2012/0705/Cosmic-scaffolding-uncovered-Scientists-find-thread-of-dark-matter.
- ↑ Dietrich, Jörg. "The Abell 222/223 Supercluster with dark matter Filament". University of Michigan/University Observatory Munich. https://www.usm.lmu.de/people/dietrich/gallery/a222_dm_labeled.html.
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