The RGB (Red Green Blue image) of the cluster. Red color shows optical radiation, Green shows Radio and Blue color shows X-rays emission. Credit: Chandra X-Ray Observatory
The discovery by a physics doctoral student at The University of Alabama in Huntsville (UAH) of the 2nd-strongest merger shock in clusters of galaxies ever observed has generated excitement that is opening doors to further scientific exploration. Sarthak Dasadia discovered the very strong shock in the merging galaxy cluster Abell 655 using observations from the Chandra X-ray Observatory. The shock to the north of this cluster is second in strength only to the Bullet Cluster shock.
The shock is traveling with an astonishing speed of 2,700km/s, 3X the local speed of sound in the cluster...
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