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 memberIC 1101
Redshift0.0767[1]
Distance
(co-moving)
326 Mpc (1,063 Mly) h−1
0.705
[2]
Binding mass8×1014 M
X-ray flux6.94×10−11 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.

ReferencesEdit

  1. Walker S.A. et al 2012 (2012). "X-ray observations of the galaxy cluster Abell 2029 to the virial radius" (PDF). eprint arXiv (Accepted for publication in the Monthly Notices of the Royal Astronomical Society). arXiv:1203.0486. Bibcode:2012arXiv1203.0486W. Retrieved March 11, 2012.
  2. 2.0 2.1 NASA/IPAC EXTRAGALACTIC DATABASE. "NED results for object ABELL 2029". Retrieved March 11, 2012.
  3. Abell, George O; Corwin, Harold G. Jr & Olowin, Ronald P. 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.CS1 maint: multiple names: authors list (link)
  4. Chandra X-ray Observatory, "Galaxy clusters and dark energy: Chandrao opens new line of investigation on dark energy", Harvard-Smithsonian Center for Astrophysics.

Other websitesEdit