Deprojection technique for galaxy cluster considering point spread function

TL;DR

This paper introduces a novel deprojection method that combines direct demodulation and traditional techniques to accurately analyze galaxy clusters observed with X-ray telescopes, effectively correcting for the point spread function effects.

Contribution

The paper presents a new combined deprojection and demodulation approach that improves the accuracy of galaxy cluster property measurements by accounting for PSF effects.

Findings

Central electron density increases by 30% using the new method

Temperature profile remains consistent with traditional deprojection

Enhanced accuracy in galaxy cluster analysis

Abstract

We present a new method for the analysis of Abell 1835 observed by XMM-Newton. The method is a combination of the Direct Demodulation technique and deprojection. We eliminate the effects of the point spread function (PSF) with the Direct Demodulation technique. We then use a traditional depro-jection technique to study the properties of Abell 1835. Compared to that of deprojection method only, the central electron density derived from this method increases by 30%, while the temperature profile is similar.