Scientists startled the little star swims through the outer layer of another larger star

A team of researchers in China discovered an amazing binary system One of the stellar objects called pulsars orbit in Its companion star's outer layer – it is done after it has deprived the host of its inner body and dispersed it into space.

These findings are detailed New research Published in journals scienceis an extremely rare example of preying on “spider stars” Its partner is called because the female spider webs swallow the male after mating. It is tempting that the horrifying scene is by far the best evidence for the stage of stellar evolution, called the Common Envelope Stage, never Directly observed by astronomers.

Pulsars are rapidly spinning neutron stars, an incredible stellar core left behind by supernova.

All the best exhausts about neutron stars – The most important thing is. Their packages are so tight that they contain more mass than our sun in a form of a radius of just over a dozen miles, that all their atoms and their compositions of protons and electrons are crushed into neutrons, with only one teaspoon of impossible matter, weighing tens of millions of pounds. Their powerful magnetic fields, billions of times stronger than the Earth, release the beam of radio waves into space along its polar lines.

Further begging belief that some neutron stars become pulsars, if there is a stellar companion after siphon material, the pulsars are as many as hundreds of times per second, if there is one. Their transverse radiating beams, such as the cosmic lighthouse, look like repeated signals to the observer.

The newly discovered Pulsar PSR J1928+1815 attracted astronomers because its radio pulses showed it was very close to the host, completing the orbit every 3.6 hours. They also noticed that for one-sixth of that orbit, the pulsar would disappear from sight, indicating that the host is eclipsing.

“This is a big part of the orbit,” said Jin Han, co-author of radio astronomer at Beijing National Astronomy, a co-author of Beijing's National Astronomy. Gizmodo. “It's weird, only a bigger companion can do that.”

Over four and a half years, Han's team used the 500-meter-hole spherical radio telescope (FAST) in southern China to carefully observe the system, the world's largest and most powerful single-shot radio telescope.

Their observations show that the host star is one to 1.6 times the mass of our sun, while the pulsar is more likely to be a 1.4 star mass. However, determining the production of the host star requires additional reconnaissance. Its tight tracks and the fact that it can be detected only in radio wavelengths, GIZ Famousexcludes it being a sunny star. And because it is large enough to make a pulsar erode, it must be larger than an excellent residue like another neutron star.

This totally suggests something even more spectacular: the Helium Star created after Pulsar, which was still a common neutron star at the time, tearing off the host's layer and creating a huge common envelope, a hydrogen cloud that swallowed two stars. In this case, the poor star under attack managed to stick with its evacuated gut for only 1,000 years – a flashing life span on the whole – a powerful envelope collapsed. Its influence is lasting: the friction applied by the gas gradually approaches, and both stars are closer.

Common envelopes are rare because of the process by which neutron stars deprive their companions, which causes them to spin and graduate from pulsars, which usually lead to all the stolen siphon material. But if the companions are large enough, most of them can survive.

The discovery marks the first Spider Star It was found rotating around helium. Although astronomers did not witness the envelope in action, this is the most convincing Evidence so far shows that this long-standing phase of stellar evolution exists. All in all, the team estimates that in the entire Milky Way there are only 16 to 84 galaxies like this – and, in every way, we have to see one.

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