# X-ray Emission and Orientation of Selected PF Galaxy Clusters

## TL;DR

This study analyzes the X-ray emission and orientation of 35 galaxy clusters from the PF catalog, focusing on 22 clusters with extended X-ray haloes to compare their X-ray and optical orientations.

## Contribution

It provides the first detailed comparison of X-ray and optical orientations for a subset of galaxy clusters, using XMM-Newton data.

## Key findings

- 22 clusters have extended elliptic X-ray haloes suitable for orientation analysis.
- X-ray and optical orientations show correlation or discrepancy patterns.
- Results enhance understanding of cluster morphology and alignment.

## Abstract

X-ray counterparts for 35 galaxy clusters contained in the PF catalog of galaxy clusters and groups were found in XMM-Newton archive. 22 ones (all from ACO catalogue) have extended elliptic X-ray haloes appropriate for determination of orientation. Position angles and eccentricities were calculated and compared with cluster orientations optical band.