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Phoenix Cluster Animations
Click for low-resolution animation
Animation of the Phoenix Cluster
Quicktime MPEG
This animation shows how large numbers of stars form in the Phoenix Cluster. It begins by showing several galaxies in the cluster and hot gas (in red). This hot gas contains more normal matter than all of the galaxies in the cluster combined, and can only be detected with X-ray telescopes like Chandra. The camera then flies in towards the large elliptical galaxy at the center of the cluster. The hot gas near this galaxy is giving off copious amounts of X-rays and cooling quickly over time, as shown by the change to a blue color. This cooling causes gas to flow inwards along filaments and form huge numbers of stars when it continues to cool.
[Runtime: 01:13]

(Credit: NASA/CXC/A. Hobart)

Stills:
Click for low-resolution animation
Tour of Phoenix Cluster
Quicktime MPEG
Astronomers have found an extraordinary galaxy cluster -- one of the largest objects in the Universe -- that is breaking several important cosmic records. This galaxy cluster has been dubbed the "Phoenix Cluster" because not only is it located in the constellation of the Phoenix, it also possesses some remarkable properties of the mythological creature. While galaxies at the center of most clusters may have been dormant for billions of years, the central galaxy in this cluster seems to have come back to life with a new burst of star formation. The stars are forming at the highest rate ever observed for the middle of a galaxy cluster. Observations with NASA's Chandra X-ray Observatory, the NSF's South Pole Telescope and eight other world-class observatories were used to study this object. Taken together, the data from these telescopes also show the Phoenix Cluster is the most powerful producer of X-rays and among the most massive of galaxy clusters. It also has the highest rate of hot gas cooling in the central regions of a cluster ever observed. The new results from the Phoenix Cluster, which is located about 5.7 billion light years from Earth, may force astronomers to rethink how galaxy clusters, and the galaxies that inhabit them, evolve.
[Runtime: 01:21]

(Credit: NASA/CXC/A. Hobart)


Return to Phoenix Cluster (August 15, 2012)