What is one possible product of the supernova that formed W49B?

The formation of W49B, a well-studied supernova remnant, suggests that one possible product of such an event can indeed be a neutron star. When massive stars exhaust their nuclear fuel, they undergo a gravitational collapse that can lead to a supernova explosion. If the core's mass is sufficiently great, typically above about 2 to 3 solar masses, the collapse results in the formation of a neutron star. This compact object is incredibly dense, primarily composed of neutrons, and is often left behind after the Type II supernova explosion.

Gamma-ray bursts (GRBs) are associated with certain types of supernovae, especially those resulting from hypernovae – more energetic explosions. However, W49B itself is not directly linked to a gamma-ray burst. While gamma-ray bursts are indeed an interesting product of some supernova events, the direct remnant often remains as either a neutron star or a black hole.

In this context, while briefly discussing the other choices: a red giant star is not a product of a supernova but rather a stage in the later life of a star before the supernova phase, and a "new star" could refer to the formation of a new star system from the remnants of a super