Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Giant Rings in the CMB Sky   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.

24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn