NASA | MSFC | SAO | Chandra X-ray Observatory | 2016 Aug 30
[img3="Credit: X-ray: NASA/CXC/Université Paris/T.Wang et al;This image contains the most distant galaxy cluster, a discovery made using data from NASA's Chandra X-ray Observatory and several other telescopes. The galaxy cluster, known as CL J1001+0220, is located about 11.1 billion light years from Earth and may have been caught right after birth, a brief, but important stage of cluster evolution never seen before.
Infrared: ESO/UltraVISTA; Radio: ESO/NAOJ/NRAO/ALMA"]http://chandra.si.edu/photo/2016/clj100 ... 01_w11.jpg[/img3][hr][/hr]
The remote galaxy cluster was found in data from the COSMOS survey, a project that observes the same patch of sky in many different kinds of light ranging from radio waves to X-rays. This composite shows CL J1001+0220 (CL J1001, for short) in X-rays from Chandra (purple), infrared data from ESO's UltraVISTA survey (red, green, and blue), and radio waves from the Atacama Large Millimeter/submillimeter Array (ALMA) (green). The diffuse X-ray emission comes from a large amount of hot gas, one of the defining elements of a galaxy cluster, as described in the press release.
In addition to its extraordinary distance, CL J1001 is remarkable because of its high levels of star formation in galaxies near the center of the cluster. Within about 250,000 light years of the center of the cluster (its core), eleven massive galaxies are found and nine of those display high rates of formation. Specifically, stars are forming in the cluster core at a rate equivalent to about 3,400 Suns per year. ...
Discovery of a Galaxy Cluster With a Violently Starbursting Core at z=2.506 - Tao Wang et al
- arXiv.org > astro-ph > arXiv:1604.07404 > 25 Apr 2016 (v1), 15 Jun 2016 (v3)