A New Supernova Remnant Candidate and an Associated Outflow in the Sagittarius C Region

TL;DR

This study reports the discovery of a new supernova remnant candidate in the Sagittarius C region, characterized by diffuse X-ray structures and an associated outflow, supported by Suzaku observations indicating thermal emission and physical connection.

Contribution

The paper introduces a newly identified SNR candidate and its outflow, providing detailed X-ray analysis and establishing their physical association in the Sagittarius C region.

Findings

Diffuse X-ray structures consistent with SNR thermal emission

Evidence of physical connection between the SNR candidate and outflow

Estimated thermal energy typical of galactic SNRs

Abstract

We present the Suzaku results on a new candidate of a supernova remnant (SNR) in the Sagittarius C region. We detected diffuse X-rays of an elliptical shape (G359.41-0.12) and a chimney-like structure (the Chimney), both of which were fitted with a thin thermal the model of kBT ~1 keV temperature. The absorption columns are same between these two structures, indicating that both are located at the same distance in the same line of sight. The narrow band image and one-dimensional profile of S XV Kalpha at 2.45 keV show that the Chimney is emanating from G359.41-0.12. Therefore, these two sources are physically connected with each other. The sum of the thermal energies of the Chimney and G359.41-0.12 is estimated to be 1.4x10^50 erg, typical for a galactic SNR. G359.41-0.12 is likely to be a new SNR candidate and the Chimney is an associated outflow.