A Giant Stripping Process in the Galaxy Cluster A1644
Minimum credit line:
Image courtesy of T. Reiprich (University of Virginia & Bonn University) and ESA.
(for details, see Conditions of Use).
The image above can be displayed at full size and may be downloaded by clicking the image above.
About this Image
Abell 1644, located about 160 Million light years from the center of the Shapley supercluster, is a rather exceptional complex double cluster.
The figure on the left shows the X-ray surface brightness distribution (contours) and the
intracluster gas temperature distribution (blue = cool = 30 Million degrees and yellow/red = hot = 60 Million degrees) as obtained with data from
XMM-Newton. Note the cool trail that the upper subcluster appears to be leaving behind.
The figure on the right shows an image of a hydrodynamic simulation of what we think might have happened in A1644: a smaller subcluster has passed by the
main subcluster off-axis and a fraction of its gas has been stripped off during this process (darker = cooler temperature). This would
make A1644 the cluster exhibiting one of the largest scale stripping processes ever observed.
Investigator(s): T. Reiprich, C. Sarazin, J. Kempner, E. Tittley
Higher resolution versions of this image may be available, please contact the XMM-Newton HelpDesk.
Search the Image Gallery
To search the Image Gallery for a particular object, fill in the object name in the box below and click the Submit button.
To search the Image Gallery for other images, fill in any of the fields below and click the Submit button.
For more search options, please use our Advanced Search form.