# Three dimensional dust mapping of 12 supernovae remnants in the Galactic anticentre

## TL;DR

This study uses 3D dust mapping to analyze 12 supernova remnants in the Galactic anti-center, revealing interactions with molecular clouds and providing new distance estimates for several remnants.

## Contribution

It introduces a 3D dust mapping approach to study SNRs and their interactions with molecular clouds, offering refined distance measurements.

## Key findings

- Confirmed interactions between SNRs and molecular clouds for four remnants.
- Provided new distance estimates for eight SNRs.
- Identified potential interactions for three additional SNRs.

## Abstract

We present three dimensional (3D) dust mapping of 12 supernova remnants (SNRs) in the Galactic anti-center (Galactic longitude $l$ between 150\degr\ and 210\degr) based on a recent 3D interstellar extinction map. The dust distribution of the regions which cover the full extents in the radio continuum for the individual SNRs are discussed. Four SNRs show significant spatial coincidences between molecular clouds (MCs) revealed from the 3D extinction mapping and the corresponding radio features. The results confirm the interactions between these SNRs and their surrounding MCs. Based on these correlations, we provide new distance estimates of the four SNRs, G189.1+3.0 (IC443, $d=1729^{+116}_{-94} \rm \,pc$), G190.9-2.2 ($d=1036^{+17}_{-81} \rm \,pc$), G205.5+0.5 ($d=941^{+96}_{-94}$ or $1257^{+92}_{-101} \rm \,pc$) and G213.0-0.6 ($d=1146^{+79}_{-80} \rm \,pc$). In addition, we find indirect evidences of potential interactions between SNRs and MCs for three other SNRs. New distance constraints are also given for these three SNRs.