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A Cylindrically Symmetric Spacetime Solution in Einstein Gravity with Lambda and Rotation Velocities Around the Center

Authors
Lee, Tae Hoon
Issue Date
Apr-2009
Publisher
KOREAN PHYSICAL SOC
Keywords
Cosmological constant; Scalar fields; Flat rotation curves
Citation
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.54, no.4, pp.1734 - 1737
Journal Title
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
Volume
54
Number
4
Start Page
1734
End Page
1737
URI
http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/15854
ISSN
0374-4884
Abstract
In the theory of Einstein gravity with a cosmological constant, we consider a 2-dimensional hedgehog configuration of scalar fields and we determine the structure of a static cylindrically-symmetric spacetime with the aftereffects of the scalar fields. We calculate the velocities of objects rotating around the center and discuss their possible relations to the near flatness of the rotation curves in spiral galaxies.
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