File:RX J1347.5-1145.jpg

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Summary

DescriptionRX J1347.5-1145.jpg	English: These four galaxy clusters were part of a large survey of over 300 clusters used to investigate dark energy, the mysterious energy that is currently driving the accelerating expansion of the Universe. In these composite images, X-rays from Chandra (purple) have been combined with optical light from Hubble and Sloan Digital Sky Survey (red, green, and blue). Researchers used a novel technique that takes advantage of the observation that the outer reaches of galaxy clusters, the largest structures in the universe held together by gravity, show similarity in their X-ray emission profiles and sizes.
Date	18 March 2016, 13:52:07
Source	http://chandra.si.edu/photo/2016/clusters/clusters_rxj1347.jpg
Author	NASA/CXC/Univ. of Alabama/A. Morandi et al

Licensing

	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	Thumbnail	Dimensions	User	Comment
current	13:06, 4 May 2016		864 × 864 (483 KB)	Mylkomeda	User created page with UploadWizard

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RX J1347.5−1145

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- RX J1347.5-1145
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- Q7278141

Metadata

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Image title	These four galaxy clusters were part of a large survey of over 300 clusters used to investigate dark energy, the mysterious energy that is currently driving the accelerating expansion of the Universe. In these composite images, X-rays from Chandra (purple) have been combined with optical light from Hubble and Sloan Digital Sky Survey (red, green, and blue). Researchers used a novel technique that takes advantage of the observation that the outer reaches of galaxy clusters, the largest structures in the universe held together by gravity, show similarity in their X-ray emission profiles and sizes.
Source	Chandra X-ray Observatory
Headline	From a sample of over 300 galaxy clusters used to study dark energy.
Credit/Provider	X-ray: NASA/CXC/Univ. of Alabama/A. Morandi et al; Optical: SDSS, NASA/STScI
Author	Chandra X-ray Observatory Center
Short title	"Russian Doll" Galaxy Clusters Reveal Information About Dark Energy
Usage terms	http://chandra.harvard.edu/photo/image_use.html
Date and time of data generation	28 April 2016
Orientation	Normal
Horizontal resolution	0.005952380952381 dpi
Vertical resolution	0.00031111111111111 dpi
File change date and time	(Macintosh)
Exif version	2.21
Color space	sRGB
Software used	Adobe Photoshop CS6 (Macintosh)
Date metadata was last modified	09:52, 28 April 2016
Date and time of digitizing	13:52, 18 March 2016
Unique ID of original document	CEFA8F7D451234051396E0DC122A32D2
Keywords	RXJ 1347.5-1145
Contact information	cxcpub@cfa.harvard.edu http://chandra.harvard.edu 60 Garden St. Cambridge, MA, 02138 USA 617.496.7941
IIM version	4