Spatial structure of the WMAP-Planck haze

TL;DR

This study analyzes the spatial structure of the WMAP-Planck haze using Planck 2018 data, finding compatibility with Fermi bubbles and exploring possible origins like pulsars and dark matter decay.

Contribution

It provides a detailed spatial analysis of the haze, comparing it with Fermi bubbles and evaluating potential origins such as pulsars and dark matter decay.

Findings

Haze and Fermi bubbles have compatible spatial dimensions and locations.

No substructures like the Fermi cocoon are detected in Planck data.

Both pulsars and dark matter decay remain plausible explanations.

Abstract

It was proposed that the two phenomena, WMAP-Planck haze and Fermi bubbles, may have a common origin. In the present paper we analyze the spatial structure of the haze using the Planck 2018 data release. It is found that the spatial dimensions and locations of WMAP-Planck haze and Fermi bubbles are compatible within the experimental uncertainties. No substructures similar to the Fermi bubbles cocoon are identified in the Planck data. Comparison with the spatial extent of possible synchrotron emission caused by the electron-positron pair emitted by the Galactic center pulsar population and by the decay of dark matter particles in the Galactic center region are performed. Both galactic pulsars and dark matter decay remain viable explanations of the WMAP-Planck haze.