Star impact supernova?It may be a new type of star explosion, what do you think?

‘I think the supernova caused by the merger is just a preliminary understanding of possible phenomena. ‘

This picture shows the core of a dense celestial bodies (maybe black holes or neutron stars) at its large -quality companion. Quickly accumulating this dense sky to form a stagnation disk, and a pair of jets were launched at a speed of nearly light. These jets have passed through this star. Due to the huge energy released, it will explode in a supernova. In the next few years, the explosive star material will pass through the dense star material ring to the core in the previous centuries in the previous century in the previous century, creating a luminous radio electricity. (Picture source: chuck car)

A new study found that astronomers discovered the evidence of the explosion caused by the dead star impact, which may prove a new type of supernova.

The supernova is a huge explosion when the star dies. These explosions can briefly illuminate all the other sun in the galaxies where these stars are, so that they can be visible in half of the universe.

For decades, researchers have known two main types of supernovas. One is that after 10 times the sun, a large -quality star will collapse after all fuels are burned at its core, causing the outer layer to explode, leaving a star's residual objects such as neutron or black holes. The other is that stars with a quality of 8 times the quality of the sun will be burned over time, leaving the core core called the white dwarf. It was detonated in the thermal nuclear explosion.

However, scientists have proposed that there may be other types of supernovas. For example, most of the stars with more than 8 solar quality are born on the orbit close to the accompanying star. Among them, the high -quality stars may be died as a supernova at the beginning, leaving a neutron or black hole. In theory, it can spirally collide towards its companion, which triggers supernova.

At present, astronomers may have discovered this signs of the core collapse and supernova caused by merging. They introduced their discovery in detail in the magazine of Science today (September 2).

"This is the first supernova that belongs to the new type," the main author of research, Dillon Dong from California Institute of Technology from Passadina California Institute of Technology, told Space.

Researchers used data from VLASS (VLASS was a project that could scan the outbreak of night sky radio -eruptions) and detected an extremely bright radio wave explosion that occurred in 2017, known as VT J121001+4959647. This explosion did not appear in the early radio survey, and DONG claimed its brightness: "The supernova of the brightest radio power that has been detected so far is comparable."

Through subsequent radio and optical analysis, the researchers found that these radio spots came from a star surrounded by thick dense gas shells. This material bag is likely to be sprayed from the star a few centuries before the radio signal issued.

DONG said: "This predecessor has experienced an explosive quality loss, and the quality sprayed from its atmosphere exceeds the quality of the sun."

Astronomers believe that the outbreak of the radio has occurred during the star explosion in the supernova.

These scientists subsequently studied the previous X -ray data. They found that in 2014, X -ray jets burst out of the same place as VT J121001+4959647. They believe that these jets occur when a star becomes a supernova, leaving a dead star, which pulls the gas from its companion's body, producing a dense gas shell. Then, when the dead star hit its surviving partner, a bright radio light was produced.

DONG said: "As the neutron or black hole continues to rotate, it is expected that it will be unbuttoned away from a large number of star atmosphere and spray it to a far place." And he believes, "If it reaches the core, the theory predicts that it can destroy it. Nuclear fusion triggers super new stars and launched the jets we observed. ""

"I don't know that we can find such a system through VLASS", DONG said, "But this is exactly where its charm is — we open our eyes to look at every possibly interesting source, and use our experience, and use our experience, and use our experience, and use our experience, and use our experience, and use our experience. Especially those dead beacons we have gone through, and our intuition to point out the objects that we want to further study. "

"Scientists are now planning to monitor VT J121001+4959647 to help understand more about how to rotate with each other about how to rotate with each other, and these are things that are very difficult to simulate by computer," Dong said, "like this like this, like this The system may be the best way we use to understand the physical phenomenon that occurred in the merger of two stars. "

More discovery may still be waiting for us, Dong added.

"One of the most exciting discoveries in the past ten years is that most large -quality stars were born in the double -star system, Samsung system, four -star system, etc. Most of them are close to each other.It has a strong interaction, "Dong said," the previous astronomers all established a model based on the situation of stars, but we now realize that we can also explore a series of rich phenomena brought by the interaction of these stars.I think that the supernova caused by the merger is just a preliminary understanding of possible phenomena. With the further development of the next generation of celestial patrol surveys and theoretical celestial physics, we may find that stars will act in various unexpected ways in various ways.. "By: Charles Q. Choi

Fy: xiaxiazi

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