For decades, researchers have noted irregular flashes in the double star system of the V745C Corpion. Distant from us by 25,000 light years. For the first time, the signals were recorded in 1937 and 1989, but only in 2014, when everything repeated, did the researchers have the necessary tools for review.
The V745C corpion consists of a red giant and a white dwarf in a gravity block. There is such a small distance between them that the outer layers of the giant are torn off by the gravity of the dwarf. Over time, the smaller neighbor has accumulated enough mass to explode in the form of a new one. Scientists were able to observe this glow in the optical survey for 9 days.
Observations showed that the discarded material moved in our direction. To explain this, we had to create a computer model, which included a large disk with cool gas around the equatorial line of the dwarf. It turned out that the blast wave concentrated along the north and south poles of the system. The form was created by swelling the waves in the gas disk, which caused a slowdown and the formation of an expanding ring. The top image shows the 3D model of the explosion (the blast wave is yellow, the ejected mass is purple, and the cold disk is blue). On the left side you can see the plane - the deceleration of the fragments.
At the time of the explosion, an enormous energy reserve was released, equivalent to 10 million trillions of hydrogen bombs. But this number was still less than expected. This suggests that the dwarf continues to collect material and one day there will be an explosion that will completely destroy it.
Also managed to understand the chemical compiled new. Basically it is carbon and oxygen. Below you can see a 3D model with an exploding wave (gray) and discarded material (yellow).