# On the structure of galactic halos and the microwave temperature maps

## TL;DR

This paper investigates the microwave temperature asymmetry in galactic halos, exploring the role of dust emission and dark matter profiles using Planck data and models, to better understand halo structures.

## Contribution

It provides a detailed analysis of dust's contribution to microwave asymmetry in galaxy halos, linking observational data with dark matter models.

## Key findings

- Dust may significantly contribute to microwave asymmetry.
- Results support the connection between dust emission and dark halo parameters.
- Analysis of M31 offers insights into halo structure and composition.

## Abstract

The study of Planck microwave temperature maps towards several nearby spiral edge-on galaxies had revealed frequency independent temperature asymmetry of Doppler origin in their halos. On an example of M31, as of relatively detailed studied galaxy, the contribution of the dust component in that effect is studied using the models of dust emission and the phenomenological profiles of the dark matter configurations. The results are in accordance with those obtained from the microwave temperature asymmetry data, thus indicating the possible contribution of dust among other radiation mechanisms in revealing the dark halo parameters.