The Supernova Remnant RCW 86 and its environment?

DUVIDOVICH, L.; G. DUBNER; GIACANI, E.; Y COL.

Congreso; Reunión Anual de la Asociación Argentina de Astronomía; 2015

RCW 86 (G315.4?2.3) is one of the brightest Galactic supernova remnants in X-rays and has been suggested to be the remnant of the SN 185. It has a shell-like morphology across almost the entire electromagneticspectrum (radio, optical, infrared, X-rays and γ-rays). Detailed hydrodynamic simulations show that the overall dynamics and emission properties in different positions of this remnant can be well reproduced by assuming that it is the remnant of a Type Ia SN that exploded within an elongated cavity. This paper presents preliminary results of the neutral gas study conducted around RCW 86 using λ 21 cm interferometric observations made with the ATCA (Australia) to explore the gaseous environment of this source.