Ring Type Structures in the Planck map of the CMB

TL;DR

This paper investigates ring-like structures in the Planck satellite's CMB maps, identifying a specific radius with notable features and analyzing how deformation affects their significance.

Contribution

It introduces a method to detect ring structures in CMB maps and reports a significant ring feature at a particular radius, contributing new insights into CMB anomalies.

Findings

A specific radius ({b3} = 0.14 radians) shows distinguished ring-like features.

Deforming rings into ellipses reduces their statistical significance.

Ring structures are more prominent at certain scales in the Planck data.

Abstract

We present the results of the quest for ring-type structures on the maps observed by the Planck satellite. The results show that the vicinity of one radius ({\gamma} = 0.14 radians) of the rings is distinguished. Twisting the circles into deformed ellipses gives a pronounced drop of significance with the increase of twisting.