Speaker
Description
Supernova remnants (SNRs) are the nebulous phase of supernovae before they dissipate and merge into the interstellar medium. Oxygen-rich (O-rich) SNRs are a rare subtype of which only $\sim$20 have been discovered out of thousands of SNRs in the Milky Way and nearby galaxies. They are dominated by strong forbidden emissions of oxygen in visible light and typically complemented with X-rays and infrared emissions. They are also relatively young with estimates ranging from decades to hundreds of years, bridging the gap between supernovae and regular SNRs.
We will present our results from our recent observation campaign into extragalactic O-rich SNRs with VLT/MUSE and XSHOOTER, and compare them to other such objects in the literature, such as Cas A, SNR 4449-1 and WB92-26. We will discuss on their structure and powering mechanisms. We will also present current state of computer models on these objects.
We will present our most recent O-rich SNR discovery in the nearby galaxy NGC 253 and discuss the strategies to find them with future observations. Finally, We will discuss the potentials of deeper observations with new instruments such as JWST and ELT/HARMONI and how we can understand supernova dust formation and retention through these objects.