  Dark matter, first postulated by Jacobus Kapteyn in 1922 and later by Fritz
Zwicky in 1933, has remained an enigma ever since proof of its existence was
confirmed in 1970 by Vera Rubin and Kent Ford by plotting the rotation curve
for the Andromeda galaxy. Here, some concepts from string theory and
topological change in quantum cosmology are used to formulate a new model for
dark matter. The density profiles of dark matter halos are often modeled as an
approximate solution to the Lane-Emden equation. Using the model proposed here
for dark matter, coupled with previous work showing that the approximate
solution to the Lane-Emden equation can be an exact solution of the
Einstein-Maxwell equations, provides a new insight into the possible nature of
dark matter.
