XMM-Newton Observations of Galaxy Clusters: The Radial Temperature Profile of A2163

TL;DR

This paper presents a detailed XMM-Newton mosaic observation of galaxy cluster A2163, deriving a new radial temperature profile crucial for accurate mass estimation, with careful background subtraction to ensure reliability.

Contribution

It provides the first high-resolution radial temperature profile of A2163 using XMM-Newton data, emphasizing the importance of background treatment for precise temperature and mass measurements.

Findings

New radial temperature profile of A2163 derived

Highlights importance of background subtraction in X-ray cluster analysis

Improves accuracy of cluster mass estimates

Abstract

XMM-Newton, with its high throughput and excellent spatial and spectral resolution, is an ideal instrument for spectro-imaging observation of clusters. Presented here is an XMM-Newton mosaic observation of A2163, from which a new radial temperature profile is derived. The issue of background subtraction is addressed in some detail as a proper treatment of the background is essential for the derivation of correct temperatures, and thus, of the correct total cluster mass.