Abell 68
| Abell 68 | |
|---|---|
.jpg) The galaxy cluster, Abell 68 captured by the Hubble Space Telescope in 2012 | |
| Observation data (Epoch J2000.0) | |
| Constellation(s) | Pisces |
| Right ascension | 00h 37m 05.300s |
| Declination | +09d 09m 11.00s |
| Brightest member | Abell 68 BCG (PGC 1360619) |
| Richness class | 1 |
| Bautz–Morgan classification | Type I |
| Redshift | 0.254600 |
| Distance | 3.668 Gly (1124.6 Mpc) |
| X-ray luminosity | Between 6 × 1042 and 11 × 1044 erg s-1 |
| Other designations | |
| NSCS J003706+090916, ZwCl 0034.4+0851, PSZ2 G116.95-53.55 | |
Abell 68 is massive and rich galaxy cluster located in the constellation of Pisces with a projected co-moving distance of approximately 1124.6 Mpc or 3.668 billion light-years away from Earth. The cluster is especially notable for its gravitational lensing[1] and was first discovered by George O. Abell in 1958.[2]
History[edit]
Abell 68 is one of the original 2,712 galaxy clusters to be compiled inside the Abell Catalogue by George O. Abell who used the data that is retrieved from the National Geographic Society - Palomar Observatory Sky Survey.[2]
References[edit]
- ^ Yuan, T. -T.; Kewley, L. J.; Richard, J. (2013-01-01). "The Metallicity Evolution of Star-forming Galaxies from Redshift 0 to 3: Combining Magnitude-limited Survey with Gravitational Lensing". The Astrophysical Journal. 763 (1): 9. arXiv:1211.6423. Bibcode:2013ApJ...763....9Y. doi:10.1088/0004-637X/763/1/9. ISSN 0004-637X.
- ^ a b Abell, George O. (1958-05-01). "The Distribution of Rich Clusters of Galaxies". The Astrophysical Journal Supplement Series. 3: 211. Bibcode:1958ApJS....3..211A. doi:10.1086/190036. ISSN 0067-0049.