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Dark Matter, a Direct DetectionDOI: 10.4236/oalib.1104219, PP. 1-8 Subject Areas: Modern Physics, Theoretical Physics Keywords: Dark Matter, Galaxies: Formation, Galaxies: Evolution, Gravitation Abstract
In a
previous paper, we demonstrated that the linearized general relativity could
explain dark matter (the rotation speed of galaxies, the rotation speed of
dwarf satellite galaxies, the movement in a plane of dwarf satellite galaxies,
the decreasing quantity of dark matter with the distance to the center of
galaxies’ cluster, the expected quantity of dark matter inside galaxies and the
expected experimental values of parameters Ωdm of
dark matter measured in CMB). It leads, compared with Newtonian gravitation, to
taking in
account the second component (gravitational field) of the gravitation (imposed
by general relativity) without changing the gravity field (also known as
gravitomagnetism). In this explanation, dark matter would be a uniform gravitational
field that embeds some very large areas of the universe generated by the
clusters. In this article we are going to see that this specific gravitational
field, despite its weakness, could be soon detectable, allowing testing this
explanation of dark matter. It should generate a slight discrepancy in the
expected measure of the Lense-Thirring
effect of the Earth. In this theoretical frame, the Lense-Thirring
effect of the “dark matter” would be a value between around 0.3 milliarcsecond/year and 0.6 milliarcsecond/year in the
best case. In the LAGEOS or Gravity Probe B experiments, there was not enough
precision (around 0.3% for the expected 6606 mas·y﹣1 geodetic
and around 19% for the expected 39 mas·y﹣1 frame-dragging
precessions). In the GINGER experiment, there
could be enough one; the expected accuracy would be around 1%. If this discrepancy was verified, it would be the first direct measure of the dark matter.
Corre, S. L. (2017). Dark Matter, a Direct Detection. Open Access Library Journal, 4, e4219. doi: http://dx.doi.org/10.4236/oalib.1104219. References
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