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Dark Matter Halos May Contain Stars
The image on the left shows a portion of our sky, called the Boötes field, in infrared light, while the image on the right shows a mysterious, background infrared glow captured by NASA’s Spitzer Space Telescope in the same region of sky.Credit: NASA/JPL-Caltech
What causes the mysterious glow of radiation seen across the entire sky by infrared telescopes? The answer may lie in a combination of concepts that are relatively new to the field of astronomy, and are somewhat controversial, too. Rogue stars that have been kicked out of galaxies may be embedded in dark matter halos that have been theorized to surround galaxies. While these dark matter halos have previously only been detected indirectly by observing their gravitational effects, they may also hold the source of the enigmatic background glow of radiation.
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Read the rest of Dark Matter Halos May Contain Stars (796 words)
© nancy for Universe Today, 2012. | Permalink | No comment |
Post tags: dark matter halo, Spitzer
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2012-10-24 23:23:18
Source: http://www.universetoday.com/98166/dark-matter-halos-may-contain-stars/
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