What distinguishes Type Ia Supernova remnants from Core-Collapse remnants regarding their progenitor?
Type Ia remnants result from the explosion of a white dwarf and are generally thought to lack a central compact object, unlike core-collapse remnants.
The nature of the progenitor star dictates the initial conditions and subsequent remnants. Core-collapse supernovae result from the demise of massive stars and characteristically leave behind a compact object, either a neutron star (often observed as a pulsar in composite remnants) or a black hole. Conversely, Type Ia supernovae are thermonuclear explosions of white dwarfs. These Type Ia remnants are believed not to leave behind a central compact object. Although both types evolve through the same general physical stages, the initial energy release and the distribution of heavy elements differ based on this progenitor distinction.
