Supernova Remnants in the Multi-Wavelength Era

Dear Colleagues,

With the advent of new missions such as JWST and XRISM, and existing missions such as Chandra and HST continuing to produce exciting and novel results, we are living in a golden age for supernova and supernova remnant science. Observations with JWST and XRISM have answered questions about the formation and destruction of dust in supernova ejecta, the chemical enrichment of the interstellar and circumgalactic medium, and the explosion mechanisms in core-collapse and Ia supernovae. These new observations, along with parallel theoretical developments, have greatly enhanced our understanding of supernova progenitor evolution, the explosive nucleosynthesis associated with the end points of stellar evolution, and the progenitor–supernova–supernova remnant connection.

Still, several open questions remain. For instance, JWST observations of supernovae and their remnants suggest that there exists diversity in the dust production in ejecta, which may somehow be related to the progenitor and its evolution. Likewise, XRISM observations reveal the presence of trace elements such as potassium and chlorine in ejecta. The detection of these elements provides strong clues about the progenitor and its evolution just before core collapse. Finally, advances in numerical modeling of Type Ia SNe raise new questions about whether current or planned observatories can reliably determine the explosion channel behind Type Ia SNRs.

In this Special Issue, we aim to provide an overview of the advances that have been and can be made in this era of multiwavelength observations of supernova remnants and address questions that can be answered with regard to the complex connections between supernova remnants and their progenitors.

Both reviews and original content will be considered for this Special Issue.

I look forward to receiving your contributions.

Dr. Daniel Patnaude
Guest Editor

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