Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2010-05-21
Astrophys.J.724:374-378,2010
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
6 pages, 7 figures, accepted for publication in The Astrophysical Journal
Scientific paper
10.1088/0004-637X/724/1/374
We find a unique direction in the CMB sky around which giant rings have an anomalous mean temperature profile. This direction is in very close alignment with the afore measured anomalously large bulk flow direction. Using Monte Carlo simulations, we estimate the significance of the giant rings at the $3\sigma$ level and the alignment with the bulk flow at $2.5\sigma$. We argue that a cosmic defect seeded by a pre-inflationary particle could explain the giant rings, the large bulk flow and their alignment.
Ben-David Assaf
Itzhaki Nissan
Kovetz Ely D.
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