File:Interacting galaxy clusters A3391 & A3395 with eROSITA.png
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DescriptionInteracting galaxy clusters A3391 & A3395 with eROSITA.png |
English: These two eROSITA images show the two interacting galaxy clusters A3391, to the top of the image, and the double-peaked cluster A3395, to the bottom, highlighting eROSITA’s superb view of the distant Universe. They were observed in a series of exposures with all seven eROSITA telescope modules taken from 17 to 18 October 2019. The individual images were subjected to different analysis techniques, and then coloured in different schemes to highlight the different structures. In the left-hand image, the red, green and blue colours refer to the three different energy bands of eROSITA. One clearly sees the two clusters as nebulous structures, which shine brightly in X-rays due to the presence of extremely hot gas (tens of millions of degrees) in the space between galaxies. The image on the right highlights the “bridge” or “filament” between the two clusters, confirming the suspicion that these two huge structures do interact dynamically. The eROSITA observations also show hundreds of point-like sources, signposting either distant supermassive black holes or hot stars in the Milky Way.
by T. Reiprich (Univ. Bonn), M. Ramos-Ceja (MPE), F. Pacaud (Univ. Bonn), D. Eckert (Univ. Geneva), J. Sanders (MPE), N. Ota (Univ. Bonn), E. Bulbul (MPE), V. Ghirardini (MPE), MPE/IKI |
Date | |
Source | Own work |
Author | JohannesBuchner |
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current | 10:55, 19 June 2020 | 1,400 × 806 (1.4 MB) | JohannesBuchner (talk | contribs) | Cross-wiki upload from en.wikipedia.org |
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Horizontal resolution | 37.8 dpc |
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Vertical resolution | 37.8 dpc |