25th May 2013
Physicists suggest possible existence of other kinds of dark matter

Current cosmological theory suggests that our Galaxy, like others, sits in the middle of a large ball-shaped concentration of dark matter. However, there may be other shapes lurking in this hidden gravitational scaffolding. A new paper in Physical Review Letters proposes the existence of an additional type of dark matter having strong interactions that cause it to form into large disk-shaped objects. Such dark disks would presumably overlap or “double” up with the disks of conventional matter in galaxies like the Milky Way.
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Physicists suggest possible existence of other kinds of dark matter

Current cosmological theory suggests that our Galaxy, like others, sits in the middle of a large ball-shaped concentration of dark matter. However, there may be other shapes lurking in this hidden gravitational scaffolding. A new paper in Physical Review Letters proposes the existence of an additional type of dark matter having strong interactions that cause it to form into large disk-shaped objects. Such dark disks would presumably overlap or “double” up with the disks of conventional matter in galaxies like the Milky Way.

Read More.

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