Detecting super-fast star systems disrupts conventional physics theory

Thousands of light years away, from the outskirts of the Milky Way, astronomers have discovered something that has never been seen before - a binary star or binary star (binary star - a The system consists of two stars moving in the orbits of the two stars' masses moving too fast , at a rate beyond most objects in our galaxy.

What does that mean? There must be something to help this star system get such amazing momentum, and so far, the best explanation is that they have been motivated by a super large black hole lurking in the center of heaven. ha. But the problem is, this twin star is not near a supermassive black hole.

Dubbed PB3877 and located at a distance of 18,000 light-years from Earth, this binary star is not the first super-fast star to be found in our galaxy.

Until now, astronomers have identified more than 20 similar super-speed stars and they will soon move out of the Milky Way.

In 2005, a super-speed star called US 708 was confirmed to soar through the Milky Way at a speed of about 745 miles per second (1,199 km / sec, or 4.3 million km per hour) - enough to Get rid of the gravity of the galaxy.

PB3877 is a supernova binary system that was first found, breaking all normal physical rules.(Illustration).

"At that rate, you can go from Earth to the Moon within 5 minutes," one of the researchers found US 708, Eugene Magnier from the University of Hawaii said. Scientists estimate that US 708 will escape the Milky Way in about 25 million years.

However, all the super-fast stars that we have discovered so far are simple stars. This is the first time astronomers have found a binary star system that reaches super speed.

"We have studied super-fast stars since 2005, when we discovered the first super-fast star ," one of the first astronomers found US 708, Ulrich Heber from Friedrich Alexander University ( Germany) said.

"There are about 20 similar stars that have been found, but all are unique, none have a" companion "that can be seen directly in its spectrum."

The fact that when PB3877 was discovered is a double star on the edge of the Milky Way galaxy, it has surprised astronomers by PB3877 completely different from all the astronomers have ever found.

All other super-fast stars we know are near a supermassive black hole in the galaxy center, and physicists in general agree with the view that that's the way to explain speed. terrible of them.

But when they found PB3877, they were forced to find other theories.

PB3877 was first identified by researchers when using archived data from the Sloan Sky Research Center in 2011, and initially, they thought it was a single star. Recently, thanks to new observations made with the Keck II telescope in Hawaii and the Very Lare Telescope (VLT) telescope in Chile, the team of researchers in Germany was able to confirm that it was a system Twin star system.

This system consists of a super-hot star, with temperatures 5 times higher than our Sun's temperature, and its "companion" is a cool star whose temperature is lower than 1000 ^° C compared to Sun.

"When we looked at new data, we were surprised to find that weak absorption lines that could not come from hot stars , " said astronomer Thomas Kupfer of the California Institute of Technology ( USA) said. "The cold star seems to play a major role, showing a high radial velocity. Therefore, the two stars form a binary system, the first super-fast double star."

The scientists also re-simulated the orbit of this star system and determined that it could not have originated from the center of the Milky Way galaxy. This means that it cannot be accelerated by a supermassive black hole.

We don't know the last one, whether PB3877 comes out of the Milky Way or not.

"From our calculation, we can rule out that the double star comes from the center of the galaxy, because its orbit never reaches that place," said Eva Ziegerer, a researcher for the team. know. "Another mechanism of boosting, such as collisions or a supernova incident is also included, but if so, the double star may be severely damaged or even shattered , " Ziegerer said. .

Instead, the team hypothesized that, either a large amount of dark matter is surrounding the star, like a "halo" type to keep it stable at such amazing speeds at the edge of the galaxy, or PB3877 can be an intergalactic "intruder" formed in a neighboring galaxy before invading our universe. We don't know the last one, whether PB3877 comes out of the Milky Way or not.

"We use a series of different models to calculate the probability that stars will be bound to the galaxy. It is only for the largest types of galaxies in this case," Andreas Irrgang, one of the astronomers from Dr Observatory Karl Remeis (Germany) said. "This makes PB3877 an excellent target for exploration of dark matter models."

The research results are published in Journal Letters Astrophysical, and according to the team, the existence of this binary star system will put pressure on our normal physical models and our understanding of things. Dark matter in the Milky Way galaxy.