| Abell 370 | |
|---|---|
.jpg) Abell 370 seen by the Hubble Space Telescope on 16 July 2009. | |
| Observation data (Epoch J2000) | |
| Constellation(s) | Cetus |
| Right ascension | 02h 39m 50.5s[1] |
| Declination | −01° 35′ 08″[1] |
| Richness class | 0[2] |
| Bautz–Morgan classification | II-III[2] |
| Redshift | 0.375[1] |
| Distance | 1.464 Gpc (4.775 Gly) h−1 0.705[1] |
Abell 370 is a galaxy cluster located nearly 5 billion light-years away from the Earth (at redshift z = 0.375), in the constellation Cetus.[3] Its core is made up of several hundred galaxies. It was catalogued by George Abell, and is the most distant of the clusters he catalogued.
In the 1980s astronomers of Toulouse Observatory discovered a gravitational lens in space between Earth and Abell 370 using the Canada-France-Hawaii Telescope.[4][5] A curious arc had been observed earlier near the cluster, but the astronomers were able to recognize it as this phenomenon.[4][6]
- ^ a b c d "NED results for object ABELL 0370". NASA/IPAC Extragalactic Database (NED). Retrieved March 15, 2012.
- ^ a b 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 12, 2012.
- ^ Cite error: The named reference
SA-20180913was invoked but never defined (see the help page). - ^ a b Brunier, Serge (1999-10-28). Majestic Universe: Views from Here to Infinity. Cambridge University Press. ISBN 9780521663076.
- ^ Soucail, G.; Fort, B.; Mellier, Y.; Picat, J. P. (1987-01-01). "A blue ring-like structure in the center of the A 370 cluster of galaxies". Astronomy and Astrophysics. 172: L14–L16. ISSN 0004-6361.
- ^ Bergmann, Anton G.; Petrosian, Vahe; Lynds, Roger (1990-02-01). "Gravitational Lens Models of Arcs in Clusters". The Astrophysical Journal. 350: 23. doi:10.1086/168359. ISSN 0004-637X.