# A Systematic Analysis of the XMM-Newton Background: II. Properties of the in-Field-Of-View Excess Component

## TL;DR

This study provides a detailed analysis of the particle background in XMM-Newton's EPIC data, identifying two main components of the in-field excess background and highlighting the need for further investigation into their origins.

## Contribution

It offers the largest EPIC dataset analysis to date, improving diagnostic methods to characterize the in-field excess background components in XMM-Newton observations.

## Key findings

- In-field excess background comprises soft proton flares and low-intensity background.
- The background components are distinct and require further investigation to understand their origins.
- Enhanced diagnostic methods improve background characterization in X-ray astronomy data.

## Abstract

We present an accurate characterization of the particle background behaviour on XMM-Newton based on the entire EPIC archive. This corresponds to the largest EPIC data set ever examined. Our results have been obtained thanks to the collaboration between the FP7 European program EXTraS and the ESA R&D ATHENA activity AREMBES. We used as a diagnostic an improved version of the diagnostic which compares the data collected in unexposed region of the detector with the region of the field of view in the EPIC-MOS. We will show that the in Field-of-View excess background is made up of two different components, one associated to flares produced by soft protons and the other one to a low-intensity background. Its origin needs to be further investigated.