The mystery of vanishing stars.

"An artist’s impression of the binary system VTFS 243. Credit: ESOL. Calçada CC BY 4.0" ScitechDaily, Vanishing Without a Trace: Why Stars Mysteriously Disappear From the Night Sky)

Why do some stars vanish without a trace? The answer for that can be that the star is so massive that it can pull all its material in it when its energy production ends. That means the star will pull the supernova remnants in it when it detonates in a supernova explosion. This thing can explain the vanishing stars. 

But then we can rethink that thing, and make the model where the super powerful fusion starts in the molecular cloud around the star. If the final fusion starts in the star's core that causes the supernova explosion. The thing that makes the black hole is the vacuum that forms after the supernova explosion. When the bubble that the supernova's shockwave forms collapses, it forms a black hole. 

The star can vanish if the fusion reaction is ball-shaped and it's around the star. That thing creates the energy impulse that travels into the star and pushes atoms together. So the problem is how this "ball-shaped fusion" can happen. In some versions, the plasma eruption impacts very hor stars like blue supergiants or Wolf-Rayet (WR) stars. If that plasma has a high enough energy level. it could form the fusion around- or the shell of the start. That kind of impact fusion is theoretically possible. 

When a star is very hot, like WR stars or blue supergiants the energy that flows away from the star can form things called the cosmic bubble. The blue supergiants involve mainly hydrogen. The WR stars mainly involve helium. Those extremely hot stars are monoatomic structures. That can cause a situation in which very high energy that flows from the star can push the quantum field away from the star. 

That thing causes a situation in which the star starts to expand. And then the power of nuclear fusion decreases. That decreases the radiation, and outcoming quantum fields and gravity inside the star start to pull atoms in the star together. And if the nuclear fusion does not start fast enough that effect can form the black hole in the star. And that black hole can pull the star in it without a trace. 

The high-energy burst like a gamma-ray burst (GRB) can raise the star's outer shell's temperature, to a very high level. When high energy radiation impulse hits to star. The star's shell can turn into a higher energy level than the star's core. That effect can cause a situation. That the star's core turns into a black hole. 

In some other versions, the fast radio, X-ray, or gamma-ray bursts hit the star. The burst can be high-energy particle flow from a black hole, neutron star, or supernova. That kind of energy flow can create a high-energy area in the star's shell. And that thing can turn a small part of the star into a black hole. In some other visions. 

The incoming high-energy radiation can press energy from the shell to the star's core. That energy impact can turn the star's core into a black hole. That black hole can form the "push to flush" effect. That kind of black hole can pull the entire star in it without a trace. 

https://scitechdaily.com/vanishing-without-a-trace-why-stars-mysteriously-disappear-from-the-night-sky/