# A study of the composite supernova remnant MSH 15-56 with Suzaku

## TL;DR

This study analyzes Suzaku X-ray data of the composite supernova remnant MSH 15-56, revealing thermal and non-thermal emission components, ejecta signatures, and spectral properties of the remnant and its pulsar wind nebula.

## Contribution

First detailed spectral analysis of MSH 15-56 using Suzaku data, identifying ejecta and emission characteristics of the remnant and PWN.

## Key findings

- Spectral fit with thermal and non-thermal components
- Detection of ejecta with enhanced Ne, Mg, S, Si abundances
- Temperature ~0.6 keV, photon index ~2.0

## Abstract

The Galactic supernova remnant (SNR) MSH 15-56 is a member of the class of composite SNRs that consists of the remnant shell and a displaced pulsar wind nebula (PWN). The earlier X-ray observations reported the comet-like morphology of the PWN and the ejecta distribution of the SNR. In this work, we present a study of MSH 15-56 using archival Suzaku data. We investigate the nature of the emission and spectral parameters of the remnant. The X-ray spectra are well fitted with a combination of a thermal and non-thermal model with temperature ~0.6 keV and photon index ~2.0. The slightly enhanced abundances of Ne, Mg, S and enhanced abundance of Si confirm the presence of ejected material.