The fastest star in the history of the observation of the Milky Way discovered (2 photos)
Its speed is enough to fly from the Earth to the Sun in 19 hours. 
Astronomers have discovered a new population of superfast moving stars in the Milky Way galaxy. Among them is the fastest "runaway" star in the history of observations.
A white dwarf called J0927 hurtles through space space at a speed of 8,226,967 km/h. The star was spotted along with three other fast moving stars thought to have become results of a Type Ia supernova, one of the most powerful explosions in history. Universe.
Such supernovae occur when two stars, one of of which the destroyed white dwarf, fall into orbit around each other. IN In this case, the white dwarf begins to take hydrogen from the star, around which it rotates in a spiral. The reaction ends with a giant thermonuclear explosion.
However, a simple explosion of a star is not enough to achieve such a speed. Astronomers believe that hypervelocity stars are launched into flight by a special type of type Ia supernova - dynamically controlled supernovae with double degeneracy and double detonation (D6).
In D6 supernovae, two white dwarf stars orbit spirals with each other, one of which deprives the other of the remaining layers helium from its surface. The process produces so much energy for the surface of a white dwarf that this triggers nuclear fusion in the shell star, sending a shockwave deep into its core, causing detonation.
Our galaxy probably launched into the intergalactic the space of more than 10 million such stars, the researchers suggest. Despite the abundance of these powerful supernovae, evidence that they “shoot” white dwarfs like bullets, it is still difficult find. Astronomers nevertheless found out that white dwarfs, almost completely consisting of oxygen and carbon, became the products of an explosion that deprived them helium and hydrogen.
Our galaxy probably launched into the intergalactic the space of more than 10 million such stars, the researchers suggest. Despite the abundance of these powerful supernovae, evidence that they “shoot” white dwarfs like bullets, it is still difficult find. Astronomers nevertheless found out that white dwarfs, almost completely consisting of oxygen and carbon, became the products of an explosion that deprived them helium and hydrogen. 
A red "runaway" star from the star system in the Flame Star Nebula appears to be on fire.
The previous speed record (7,919,904 km/h) was held by white dwarf D6-1. According to scientists, supernovae D6 can be half of all Type Ia supernovae, but to know for sure, will have to look for more stars rushing through space, writes Live Science.
