File:Hubble image of MACS J0717 with mass overlay.jpg
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[edit]DescriptionHubble image of MACS J0717 with mass overlay.jpg |
English: This enormous image shows Hubble’s view of massive galaxy cluster MACS J0717.5+3745. The large field of view is a combination of 18 separate Hubble images.
Studying the distorting effects of gravity on light from background galaxies, a team of astronomers has uncovered the presence of a filament of dark matter extending from the core of the cluster. The location of the dark matter is revealed in a map of the mass in the cluster and surrounding region, shown here in blue. The filament visibly extends out and to the left of the cluster core. Using additional observations from ground-based telescopes, the team was able to map the filament’s structure in three dimensions, the first time this has ever been done. The filament was discovered to extend back from the cluster core, meaning we are looking along it. |
Date | |
Source | http://www.spacetelescope.org/images/heic1215a/ |
Author | NASA, ESA, Harald Ebeling (University of Hawaii at Manoa) & Jean-Paul Kneib (LAM) |
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Online copyright statement | |
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Credit/Provider | NASA, ESA, Harald Ebeling (University of Hawaii at Manoa) & Jean-Paul Kneib (LAM) |
Source | ESA/Hubble |
Usage terms |
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Date and time of data generation | 18:00, 15 October 2012 |
Copyright status | Copyright status not set |
Keywords | MACS J0717.5+3745 |
Contact information |
http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |