Maybe a black hole's gravitational field stretches waves and turns Hawking radiation into gravitational waves.

Hawking radiation is still a hypothetical form of radiation that the black hole should send. 

Can the Doppler effect be the reason why we cannot see Hawking radiation? That means the gravitational field of the black hole can stretch Hawking radiation into the gravitational waves. The gravitational redshift is one of the reasons why we cannot see black holes. But that means gravitational redshift can also stretch Hawking radiation. 

Theoretically, the Doppler effect can turn Hawking radiation into gravitational waves. The gravity near black holes is extremely powerful. That means it causes a very strong redshift or Doppler effect when it stretches radiation. A black hole stretches all kinds of electromagnetic radiation, including gravitational waves. So it's possible. The strong gravity field can turn Hawking radiation into gravity waves. 

When a black hole forms it turns into a massive energy package. The black hole forms the tunnel into the fourth dimension. That means it just transmits energy out of that environment. So if the Hawking radiation behaves like other radiation. that means it's possible that Doppler effect turns Hawking's radiation waves into the gravitational wave. But that means that the Hawking radiation must exist. 

But if the Hawking radiation waves and the gravitational waves have a similar "redshift effect" as other radiation types. That means that can cause more important things than we thought. What if we can create so fast and so heavy particles that they can pull gravitational waves into another type of radiation? 

That system can be based on the models where the laser accelerates particles. And that thing can cause an effect. That Doppler effect can transform gravitational waves into things like gamma rays. 

Above:The  Light Cone. 

If that gravitational Doppler effect is possible. That thing can cause a situation. That there is some kind of hole in the black hole's gravitational field. That means in the point of the relativistic jet. It's possible. The power of that jet pulls gravity waves longer than otherwise. That thing means that those fast-moving particles can turn gravity waves into the form of gamma rays.  

Gravitational interaction is one of the most interesting things. There is an idea that the gravitational effect forms. When a gravity wave travels out from the gravitational center. This effect makes other waves or fields travel to the gravitational center. The form of the energy fields is not homogenous. There are small structures called superstrings. Those points are more powerful points in the energy field. 

 

When gravitational-wave travels out from the gravity center the gravity wave makes those superstrings rotate like rolls. So the gravity field that is the gravity waves that travel out from the gravity center makes those superstrings rotate opposite direction that the gravity wave travels. When a gravity wave puts those superstrings rotate the energy transfer in that. 

An extremely small structure makes the energy or quantum low pressure ahead into its rotation direction of that field. That quantum low pressure pulls those superstrings or energy fields to the gravitational center. That is one version of models of the quantum interactions. 

The black hole forms in the high energy explosion called a supernova. When the star detonates it pushes its shell and outer structures to the space. When the star detonates it pushes a vacuum into the point where that detonation happens. The energy fields and material fall from the sides of that vacuum. That energy can form the pillar between the upper and lower energy fields. 

And the thing that we know as singularity. Makes the situation that there is a quantum tornado in the energy pillar. That structure denies the form of the standing field. And then it can explain why that structure can keep its form. The energy interaction in that structure is the key element in the gravitational model. 

When massive gravity pulls particles into the black hole there is the point, where time stops. The point is the layer where escaping velocity reaches the speed of light is the event horizon. 

The event horizon is the point. Where time stops. Behind that point. Escaping velocity turns higher than the speed of light. That makes time travel backward in the black hole. The light cone is the model where the object closes the speed of light. Or black hole's event horizon. The hypersurface of the present is the event horizon. And behind that point time travels backwards. 

We can say that a particle jumps to the fourth dimension when its energy level rises so high level, that it loses its ability to exchange information between 3D objects. When the system pulls energy to that object there is a channel between the observer and the particle. That channel is called a gravitational pothole. When that channel turns too long. It will close because energy presses it flat. 

But then we can realize one thing. The black hole or its event horizon is not in a static position in space-time. That means the black hole falls into the future. The black hole falls through spacetime. Because it's so heavy. That thing means that all particles cause time dilation. So the black hole is like a stone that we throw into the water. 

Time dilation turns that structure into a hole in the universe or spacetime. That means that when objects travel to the black hole they don't lose their ability to send information out from the gravitational pothole immediately. We can see those particles or objects until they reach the even horizon. And the gravity cone that always turns longer and longer is the channel to the future. 

But what if we want to make the particle return from the future? We must make the opposite black hole. We must make the situation that the particle turns lighter or it loses its energy. So if we want to make an object that travels to the past we should make a structure where time travels faster than in its environment.