A mystery signal from a dead galaxy causes interesting thoughts.

"A newly discovered FRB outside a dead galaxy upends theories on their origins. Scientists suggest it may stem from an old star cluster, proving FRBs can occur in unexpected environments. (Artist’s impression of a Fast Radio Burst (FRB) reaching Earth.) Credit: Jingchuan Yu, Beijing Planetarium. (ScitechDaily, Mystery Signal Lights Up a Dead Galaxy, Baffling Astronomers)

A mysterious signal from a dead galaxy is one of the most interesting things in the universe. The dead galaxy is full of neutron stars, black holes, and white dwarfs. The fast radio burst, FRB normally forms in the material nebulas in the cases that something stresses particles. Sometimes black holes eat white dwarfs and neutron stars. In some cases, the beam from a black hole hits white dwarfs and neutron stars forming the radio signals. 

In those cases, dense material changes the wavelength of the gamma and X-ray radiation. When gamma- and X-ray radiation hits a neutron star it takes that energy in its structures. And then its structures send extra energy as the energy beam.  That thing can form radio waves. But if there is no material left in the galaxy that cannot form the FRB. Also, things like relativistic jets can form only in places where there is material that black holes pull inside them. 

There is a possibility that gravity stretches X- and gamma -rays causing the situation that those radiation wavelengths can turn longer. That means the black hole can cause a very strong redshift that turns the GRB or XRB into the radio burst. 

But can the gravity wave neutralize another gravity wave? 

Above is the "sombrero model". The gravity center is surrounded by a gravity ditch. Can we see the object that is in the middle of the gravity ditch or gravity pothole? That depends on the situation can the object in the gravity pothole rise over the hill that surrounds the gravity ditch? That small energy hill is the thing that pulls energy waves forward. 

The moving energy wave pulls energy inside it from ahead of it. And that thing forms the energy ditch that we call a gravity wave. We should say that gravity wave is entirety their energy ditch pulls energy hill or energy wave forward. 

Gravity wave has two parts. The ditch travels before an energy hill or energy wave. In this text, the energy hill means that energy wave. Then there is another energy pothole that pulls the energy wave backward. The gravity wave doesn't exist if that backcoming wave falls in that pothole. 

The gravity wave is like all other waves. There is a small energy ditch before the energy wave. That wave pulls the energy move forward. The reason why we cannot see that ditch is the energy field that follows the gravity wave. The gravity field is a standing gravity field. 

But then we can think that gravity is the pothole in the energy field. The gravity center is the thing that makes the pothole, and the depth of that pothole is the strength of the gravity field. The depth of that pothole depends on the energy level of the environment. In a low-energy environment, the gravitational pothole is lower. 

If that gravity pothole or gravity ditch is filled that means there is no gravity wave or field. The gravity field forms when outside energy tries to fill the energy pothole or energy ditch. In some models is possible that an energy wave that follows a gravity ditch can involve another wave. That causes a situation in that the other wave can pump energy to a gravitational wave and that denies the gravity field's existence. 

Theoretically is possible to delete the gravity wave. By filling the gravity, or energy ditch. 

Another way is to pull energy out from its environment. 

And the third way is to stretch the edge of gravity waves. 

The thing that makes the gravity opposite is the situation that the energy level in the environment can turn lower than the bottom of the gravity ditch or gravity wave. Theoretically is possible that gravity waves can fall energy hill inside it. That can neutralize gravity waves. Theoretically is possible that something fills that energy ditch. And that causes a situation in which gravity waves cannot exist. 

 https://scitechdaily.com/mystery-signal-lights-up-a-dead-galaxy-baffling-astronomers/