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Revisiting Galactic Rotation Curves Given a Noncommutative-Geometry Background

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DOI: 10.4236/jmp.2014.517187    3,659 Downloads   4,011 Views   Citations

ABSTRACT

It was shown earlier by Rahaman et al. that a noncommutative-geometry background can account for galactic rotation curves without the need for dark matter. The smearing effect that characterizes noncommutative geometry is described by means of a Gaussian distribution intended to replace the Dirac delta function. The purpose of this paper is two-fold: 1) to account for the galactic rotation curves in a more transparent and intuitively more appealing way by replacing the Gaussian function by the simpler Lorentzian distribution proposed by Nozari and Mehdipour and 2) to show that the smearing effect is both a necessary and sufficient condition for meeting the stability criterion.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Kuhfittig, P. and Gladney, V. (2014) Revisiting Galactic Rotation Curves Given a Noncommutative-Geometry Background. Journal of Modern Physics, 5, 1931-1937. doi: 10.4236/jmp.2014.517187.

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