File:1e0657 scale.jpg

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Description1e0657 scale.jpg	English: Composite image showing the galaxy cluster 1E 0657-56, better known as bullet cluster. The image in background showing the visible spectrum of light stems from Magellan and Hubble Space Telescope images. The pink overlay shows the x-ray emission (recorded by Chandra Telescope) of the colliding clusters, the blue one represents the mass distribution of the clusters calculated from gravitational lens effects. Scale: Full image is 7.5 arcmin wide, 5.4 arcmin high Deutsch: Montage aus verschiedenen Bildern des Galaxieclusters 1E 0657-56, besser bekannt als Bullet-Cluster. Das Hintergrundbild zeigt eine Aufnahme des sichtbaren Spektrums, das vom Magellan-Teleskop und dem Hubble-Weltraumteleskop aufgenommen wurde. Darüber liegt in pink die vom Chandra-Teleskop aufgenommene Röntgenstrahlung, die vom Cluster ausgeht und in blau die Massenverteilung im Cluster, die aus Gravitationslinseneffekten berechnet wurde. Français : Image composite montrant l'amas de galaxies 1E 0657-56, aussi connu sous le nom d'amas du Boulet. Cette image montre en arrière-plan des images de galaxies qui proviennent des télescopes Hubble et Magellan. Le revêtement en rose montre les émissions de rayons-x (enregistrées par le télescope Chandra) de la collision des deux amas, alors que les émissions en bleu représentent la distribution de la masse de ces amas, calculée à partir de l'effet de lentille gravitationnelle.
Date	21 August 2006
Source	Chandra X-Ray Observatory: 1E 0657-56
Author	NASA/CXC/M. Weiss

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	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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	Date/Time	Dimensions	User	Comment
current	05:19, 24 May 2013	3,000 × 2,168 (3.67 MB)	Julian Herzog	Higher resolution.

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Image title	This composite image shows the galaxy cluster 1E 0657-56, also known as the "bullet cluster", formed after the collision of two large clusters of galaxies. Hot gas detected by Chandra is seen as two pink clumps in the image and contains most of the "normal" matter in the two clusters. An optical image from Magellan and the Hubble Space Telescope shows galaxies in orange and white. The blue clumps show where most of the mass in the clusters is found, using a technique known as gravitational lensing. Most of the matter in the clusters (blue) is clearly separate from the normal matter (pink), giving direct evidence that nearly all of the matter in the clusters is dark. This result cannot be explained by modifying the laws of gravity.
Author	Chandra X-ray Observatory Center
Date and time of data generation	21 August 2006
Horizontal resolution	240 dpi
Vertical resolution	240 dpi
Software used	Adobe Photoshop Lightroom 3.6 (Windows)
File change date and time	15:17, 24 May 2013
Exif version	2.3
Date and time of digitizing	11:53, 20 September 2006
Unique ID of original document	uuid:8B1ACFB34A2F11DB9DF0BD6B1515B45F
Date metadata was last modified	17:17, 24 May 2013
Source	Chandra X-ray Observatory
Headline	Two large galaxy clusters about 4 billion light years from Earth.
Credit/Provider	X-ray: NASA/CXC/CfA/M.Markevitch et al.; Optical: NASA/STScI; Magellan/U.Arizona/D.Clowe et al.; Lensing Map: NASA/STScI; ESO WFI; Magellan/U.Arizona/D.Clowe et al.
Short title	NASA Finds Direct Proof of Dark Matter
Keywords	1E 0657-56
Contact information	cxcpub@cfa.harvard.edu http://chandra.harvard.edu 60 Garden St. Cambridge, MA, 02138 USA 617.496.7941
Usage terms	http://chandra.harvard.edu/photo/image_use.html
IIM version	4

File:1e0657 scale.jpg

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