What compact object results from a Type Ia supernova in a binary system involving a white dwarf?
Answer
No compact remnant, as the star is completely consumed in the explosion.
Type Ia supernovae follow a distinct evolutionary path compared to the core-collapse Type II supernovae discussed for massive stars. In the Type Ia scenario, a white dwarf in a binary system accumulates too much mass, triggering runaway thermonuclear fusion across the entire body. This event results in the complete thermonuclear destruction of the white dwarf star. Because the star is entirely consumed and blown apart by this massive explosion, there is nothing left behind to form a compact remnant such as a neutron star or a black hole.
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