File:Musketball Cluster.jpg

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Summary

DescriptionMusketball Cluster.jpg	English: This composite image shows Chandra (red) and Hubble (yellow and white) data of the galaxy cluster system that has been nicknamed the "Musket Ball" cluster. Astronomers call it this because the newly discovered cluster is older and slower than the Bullet Cluster, a famous system in which "normal" matter has been wrenched apart from dark matter. Chandra detects the normal matter as hot gas, while optical emission reveals the presence of dark matter through the effect of gravitational lensing (blue). DLSCL J0916.2+2951 is further along in its evolution than the Bullet Cluster, giving scientists valuable insight into a different phase of how galaxy clusters -- the largest known objects held together by gravity -- grow and change after major collisions.
Date	24 February 2012, 09:28:50
Source	http://chandra.harvard.edu/photo/2012/musketball/
Author	NASA/Chandra X-ray Observatory

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."

File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	14:03, 10 October 2012		3,600 × 1,699 (3.79 MB)	WikiXray	User created page with UploadWizard

File usage

The following 3 pages use this file:

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Usage on es.wikipedia.org
- Usuario discusión:Victor Gibby/Archivo 2018
Usage on it.wikipedia.org
- DLSCL J0916.2+2951
Usage on www.wikidata.org
- Q6823435

Metadata

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Image title	This composite image shows Chandra (red) and Hubble (yellow and white) data of the galaxy cluster system that has been nicknamed the "Musket Ball" cluster. Astronomers call it this because the newly discovered cluster is older and slower than the Bullet Cluster, a famous system in which "normal" matter has been wrenched apart from dark matter. Chandra detects the normal matter as hot gas, while optical emission reveals the presence of dark matter through the effect of gravitational lensing (blue). DLSCL J0916.2+2951 is further along in its evolution than the Bullet Cluster, giving scientists valuable insight into a different phase of how galaxy clusters -- the largest known objects held together by gravity -- grow and change after major collisions.
Author	Chandra X-ray Observatory Center
Source	Chandra X-ray Observatory
Headline	A merger of galaxy clusters about 5.2 billion light years from Earth.
Credit/Provider	X-ray: NASA/CXC/UCDavis/W.Dawson et al; Optical: NASA/STScI/UCDavis/W.Dawson et al.
Short title	Discovery of the Musket Ball Cluster
Usage terms	http://chandra.harvard.edu/photo/image_use.html
Date and time of data generation	12 April 2012
Width	3,600 px
Height	1,699 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 CS5 Macintosh
File change date and time	15:00, 18 July 2012
Exif version	2.21
Color space	sRGB
Date and time of digitizing	09:28, 24 February 2012
Date metadata was last modified	11:00, 18 July 2012
Unique ID of original document	xmp.did:02801174072068118F6290C9BEEDEBEE
Keywords	DLSCL J0916.2+2951
Contact information	cxcpub@cfa.harvard.edu http://chandra.harvard.edu 60 Garden St. Cambridge, MA, 02138 USA 617.496.7941
IIM version	4

File:Musketball Cluster.jpg

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DLSCL J0916.2+2951

copyright status

public domain

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24 February 2012

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