Abell 2029
galaxy cluster
Abell 2029 or A2029 is a large cluster of galaxies 1 billion light years away in the constellation Virgo.[3][4]
| Abell 2029 cluster | |
|---|---|
| Observation data (Epoch J2000) | |
| Constellation(s) | Virgo |
| Right ascension | 15h 10m 56.20s |
| Declination | +05° 44′ 41″ |
| Brightest member | IC 1101 |
| Redshift | 0.0767[1] |
| Distance (co-moving) | 326 Mpc (1,063 Mly) h−1 0.705 [2] |
| Binding mass | 8×1014 M☉ |
| X-ray flux | 6.94×10−11 erg s-1 cm-2 (0.1-2.4 keV)[2] |
Its central galaxy, IC 1101, is the largest galaxy known. Estimates ranging from 5.6 to over 6 million light years across. Contrast this with the Milky Way, which is 200,000 light years across.
A2029 is also about 81 times bigger than the Milky Way, with a luminosity of 2×1012 L☉. This type of galaxy may have grown to its large size by accreting nearby galaxies.
References
change- ↑ Walker S.A. et al 2012 (2012). "X-ray observations of the galaxy cluster Abell 2029 to the virial radius". Monthly Notices of the Royal Astronomical Society. 422 (4): 3503. arXiv:1203.0486. Bibcode:2012MNRAS.422.3503W. doi:10.1111/j.1365-2966.2012.20860.x. S2CID 118676311.
{{cite journal}}: CS1 maint: numeric names: authors list (link) CS1 maint: unflagged free DOI (link) - ↑ 2.0 2.1 NASA/IPAC EXTRAGALACTIC DATABASE. "NED results for object ABELL 2029". Retrieved March 11, 2012.
- ↑ Abell, George O; Corwin, Harold G. Jr & Olowin, Ronald P. 1989 (1989). "A catalog of rich clusters of galaxies" (PDF). Astrophysical Journal Supplement Series. 70: 1–138. Bibcode:1989ApJS...70....1A. doi:10.1086/191333. ISSN 0067-0049. Retrieved March 12, 2012.
{{cite journal}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link) - ↑ Chandra X-ray Observatory, "Galaxy clusters and dark energy: Chandrao opens new line of investigation on dark energy", Harvard-Smithsonian Center for Astrophysics.
Other websites
change- Abell 2029 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- The Scale of the Universe (Astronomy Picture of the Day 2012 March 12)
- Curious About Astronomy?, "What is the largest galaxy?", Cornell University