Possible formation of ring galaxies by torus-shaped magnetic wormholes
  We present the hypothesis that some of ring galaxies were formed by relic
magnetic torus - shaped wormholes. In the primordial plasma before the
recombination magnetic fields of wormholes trap baryons whose energy is smaller
than a threshold energy. They work as the Maxwell's demons collecting baryons
from the nearest (horizon size) region and thus forming clumps of baryonic
matter which have the same torus-like shapes as wormhole throats. Such clumps
may serve as seeds for the formation of ring galaxies and smaller objects
having the ring form. Upon the recombination torus-like clumps may decay and
merge. Unlike galaxies, such objects may contain less or even no dark matter in
halos. However the most stringent feature of such objects is the presence of a
large - scale toroidal magnetic field. We show that there are threshold values
of magnetic fields which give the upper and lower boundary values for the
baryon clumps in such protogalaxies.
