40 citations · 298 across the 17 of their papers we have counts for
17 papers
Limits of the circles-in-the-sky searches in the determination of cosmic topology of nearly flat universes
G. I. Gomero, B. Mota, M. J. Reboucas
[Abridged] An observable signature of a detectable nontrivial spatial topology of the Universe is the circles-in-the-sky in the CMB sky. In the most general search, pairs of circle…
Relativistic Effects of our Galaxy's Motion on Circles-in-the-sky
M. O. Calvao, G. I. Gomero, B. Mota +1
We study the geometric effects of our galaxy's peculiar motion on the circles-in-the-sky. We show that the shape of these circles-in-the-sky remains circular, as detected by a loca…
A Note on the Robustness of Pair Separations Methods in Cosmic Topology
A. Bernui, G. I. Gomero, B. Mota +1
The pair separations statistical methods devised to detect the topology of the universe rely on the accurate knowledge of the three-dimensional positions of the cosmic sources. The…
"Circles in the Sky" in twisted cylinders
G. I. Gomero
It is shown here how prior estimates on the local shape of the universe can be used to reduce, to a small region, the full parameter space for the search of circles in the sky. Thi…
What do very nearly flat detectable cosmic topologies look like?
B. Mota, G. I. Gomero, M. J. Reboucas +1
Recent studies of the detectability of cosmic topology of nearly flat universes have often concentrated on the range of values of given by current observations. Here we stu…
Determining the shape of the Universe using discrete sources
G. I. Gomero
Suppose we have identified three clusters of galaxies as being topological copies of the same object. How does this information constrain the possible models for the shape of our U…