Primer on Dark Matter
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Scan day: 09 February 2014 UTC
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Description: Concise illustrated overview of the current status of dark matter. Some basic previous knowledge of astronomy is needed. By Mike Guidry (University of Tennessee, Knoxville).
FIGURE: Superposed on an optical picture of a group of galaxies is an X-ray image taken by . The image shows confined hot gas (which produces X-rays) highlighted in false red color. The presence of this confined gas indicates that the gravity exerted in groups and clusters of galaxies is larger than that expected from the observed galaxies.
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| Page title: | Dark Matter |
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| NS | Name Servers: NS0.UTK.EDU 160.36.0.66 NS1.UTK.EDU 160.36.128.66 |
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| Date | activated: 04-Jun-1987 last updated: 31-Mar-2011 expires: 31-Jul-2014 |