A Nitrogen-rich Supernova Remnant in M31: Interaction with the Circumstellar Medium at Late Times

We present the discovery of a supernova remnant in M31 which is unlike any other remnant known in that galaxy. An optical ground-based spectrum of WB92-26 taken at the MMT and sampling most of this marginally resolved object reveals strong lines of [O ii ], [Ne iii ], H i , [O iii ], [O i ], [N ii ]...

Full description

Bibliographic Details
Main Authors: Nelson Caldwell, John C. Raymond
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:The Astrophysical Journal
Subjects:
Online Access:https://doi.org/10.3847/1538-4357/acebdb