Circles in the Sky: Finding Topology with the Microwave Background Radiation

@inproceedings{Cornish1996CirclesIT,
  title={Circles in the Sky: Finding Topology with the Microwave Background Radiation},
  author={Neil J. Cornish and David N. Spergel and Glenn Starkman},
  year={1996}
}
If the universe is finite and smaller than the distance to the surface of last scatter, then the signature of the topology of the universe is writ on the microwave background sky. Previous efforts to search for this topology have focused on one particular model: a toroidal flat universe. We show how both the high degree of spatial symmetry of this topology and the integrability of its geodesics make it unreliable as a paradigmatic example, and discuss why topology on scales significantly… CONTINUE READING