# On the role of dust in the microwave emission of galactic halos

## TL;DR

This study investigates how thermal dust emission affects microwave signals from galactic halos, using Planck satellite data to analyze temperature asymmetries and their implications for galaxy rotation and dark matter theories.

## Contribution

It provides new estimates of dust contribution to galactic halo rotation based on multi-frequency microwave data for specific galaxies.

## Key findings

- Thermal dust contributes significantly to microwave emission in galactic halos.
- Temperature asymmetries are consistent with Doppler effects related to halo rotation.
- Results have implications for modified gravity theories and dark matter models.

## Abstract

The contribution of the thermal dust component in galactic halo rotation is explored based on the microwave data of Planck satellite. The temperature asymmetry of Doppler nature revealed for several edge-on galaxies at several microwave frequencies is analyzed regarding the contribution of the thermal dust emission. We derive the dust contribution to the galactic halo rotation using the data in three bands, 353GHz, 545GHz and 857GHz for two nearby galaxies M81 and M82. The relevance of the revealed properties on the halo rotation is then discussed in the context of the modified gravity theories proposed to describe the dark matter configurations.