# Supernova Remnants in High Definition

## TL;DR

This paper discusses how advanced X-ray spectro-imaging can revolutionize the study of supernova remnants by providing detailed 3D views of explosion metals, shock processes, and enabling comprehensive population studies.

## Contribution

It highlights the potential of future high-resolution X-ray missions to significantly enhance understanding of supernova remnants and shock acceleration mechanisms.

## Key findings

- Potential to achieve sub-parsec scale imaging of SNRs
- Ability to map metal distribution in 3D
- Detection of faint synchrotron filaments and shock precursors

## Abstract

Supernova remnants (SNRs) offer the means to study SN explosions, dynamics, and shocks at sub-parsec scales. X-ray observations probe the hot metals synthesized in the explosion and the TeV electrons accelerated by the shocks, and thus they are key to test recent, high-fidelity three-dimensional SN simulations. In this white paper, we discuss the major advances possible with X-ray spectro-imaging at arcsecond scales, with a few eV spectral resolution and a large effective area. These capabilities would revolutionize SN science, offering a three-dimensional view of metals synthesized in explosions and enabling population studies of SNRs in Local Group galaxies. Moreover, this future X-ray mission could detect faint, narrow synchrotron filaments and shock precursors that will constrain the diffusive shock acceleration process.