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More Images of Cluster Merge
1
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X-ray, Radio & Optical Images of 1E2215 & 1E2216
These images show the separate galaxy clusters 1E2215 and 1E2216, located about 1.2 billion light years from Earth, captured as they enter a critical phase of merging. Chandra’s X-ray data were combined with a radio image from the Giant Metrewave Radio Telescope in India and an optical image from the Sloan Digital Sky Survey that shows galaxies and stars in the field of view.
Credit: X-ray: NASA/CXC/RIKEN/L. Gu et al; Radio: NCRA/TIFR/GMRT; Optical: SDSS
2
Cluster Sequence Graphic
In this cluster sequence graphic, only X-ray and radio data are shown. For Abell 399 and Abell 401, the X-ray data are from ROSAT and the radio data are from GMRT. In the Abell 1758 image and the 1E2215 and 1E2216 image, the X-ray are from Chandra and the radio data come from GMRT. Finally, the X-ray data in CIZA J2242.8 are from ESA’s XMM-Newton, while the radio data are from the Westerbork Synthesis Radio Telescope in the Netherlands.
(Credit: X-ray: NASA/CXC/RIKEN/L. Gu et al; Radio: NCRA/TIFR/GMRT; Optical: SDSS)


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