File:Hubble Optical Images of Abell 2390 & MS2137 3-2353 (2001-clusters-more-2).jpg

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Hubble Optical Images of Abell 2390 & MS2137.3-2353 Hubble’s optical images show the distribution of galaxies in the central regions of the same clusters.

Summary

Description	English: Hubble Optical Images of Abell 2390 & MS2137.3-2353 Hubble’s optical images show the distribution of galaxies in the central regions of the same clusters. The Hubble data place independent constraints on the masses of the clusters that confirm the Chandra results.
Date	6 September 2001 (upload date)
Source	Hubble Optical Images of Abell 2390 & MS2137.3-2353
Author	(Credit: NASA/STScI)
Other versions	TIFF version

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File:Hubble Optical Images of Abell 2390 & MS2137 3-2353 (2001-clusters-more-2).tiff

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Image title	In this montage, Chandra's large scale X-ray images (left) show hot gas filling the two giant galaxy clusters, while Hubble's smaller scale optical images (right) show the distribution of galaxies in the central regions of the same clusters. The Chandra data provides a detailed temperature map for the hot gas and allows astronomers to precisely determine the total masses of the clusters. Most of the mass is in the form of dark matter. The Hubble data place independent constraints on the masses of the clusters that confirm the Chandra results.
Author	Chandra X-ray Observatory Center
Source	Chandra X-ray Observatory
Credit/Provider	X-ray: NASA/IOTA/S.Allen et al. Optical: HST
Headline	X-ray/Optical sets of images of two galaxy clusters located 2.5 and 3.1 billion light years from Earth respectively.
Short title	Astronomers Take the Measure of Dark Matter in universe
Usage terms	http://chandra.harvard.edu/photo/image_use.html
Date and time of data generation	6 September 2001
Width	1,995 px
Height	1,572 px
Bits per component	8 8 8
Compression scheme	LZW
Pixel composition	RGB
Orientation	Normal
Number of components	3
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Data arrangement	chunky format
Software used	Adobe Photoshop CS3 Windows
File change date and time	18:26, 9 October 2008
Exif version	2.21
Color space	sRGB
Date metadata was last modified	12:15, 27 July 2012
Date and time of digitizing	14:42, 9 October 2008
Unique ID of original document	uuid:9876CEA02396DD119EB6DCBC0CC6EC94
Keywords	Abell 2390
Contact information	cxcpub@cfa.harvard.edu http://chandra.harvard.edu 60 Garden St. Cambridge, MA, 02138 USA 617.496.7941
IIM version	4

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