What does a celestial body with a mass exactly between a black hole and a neutron star look like?

I'm not sure I understand your question, but you seem to be talking about the overtitle of a neutron star becoming a black hole, specifically an accretion neutron star becoming a black hole or a celestial nucleus. My personal phenomenological understanding is that as the mass of the neutron star increases, until a certain point, the degenerate pressure on the outside of the neutron star cannot resist gravity, causing it to collapse inward. This contraction will cause the degenerate pressure to resist gravity even more, causing the collapse to become more and more severe, and eventually become a black hole.

Let's be simple, consider a neutron star with a mass of the Sun, and it does not rotate initially. The radius of such a neutron star is about 10 km, and the resulting black hole horizon should be about 6 km. A neutron star starts to shrink from a radius of 10 km to a black hole until it retreats to 6 km, which is a very short period of time that may be similar to what you want to see as a black hole in the middle and a neutron star outside.

This architecture is not stable enough. Of course, there is a question about how the black hole horizon in the neutron star grows at this time. <>

It can be as small as being located inside, unstable, and the gravitational pull of the black hole will suck the neutron-dominated matter from the outside into it First of all, let's talk about how the upper limit of the mass of the neutron star is obtained, and the traditional explanation is to use neutron degeneracy pressure. The process of neutron degeneracy and pressure against gravity is described in these steps: neutron stars are very massive and very compact, neutrons, in fact, mean that any fermion, can not occupy the same position and east momentum at the same time, but unfortunately this thing is also a long story, simply put, it is a bit like particles to live in a hotel, each particle has to be a single room, but the number of particles is more than the number of rooms, so it will be rioted and it will be lively, and finally it seems to be very irregular motion, much like a very hot system, the temperature is high, The number density is not small because the pressure is very large, that is to say, the neutron degeneracy pressure, the electron degenerate pressure, whatever, at this time the hotel owner is also under great pressure.

We know that at the beginning of our universe, there will be various collisions in the universe, so naturally. These collisions will bring a great reaction, so many people have such a conjecture, when a supermassive neutron star, encountering a black hole, what will be the result, personally I think, they should be entangled with each other, and then rotate with each other, and finally, absorb each other, and produce other components from it, after all, for these things, there is indeed this possibility. So, this result is also normal, yes, we know that the black hole is very magical, he has a super devouring ability, no matter what it is, as long as he is allowed to touch it, he can devour, assimilate, this is the magic of the universe.

Over the years, with the development of science, we have become more and more comprehensive in the study of the universe. So. We spend so much money and energy researching these things.

What's the point for us? It is of great significance, so let's take a brief look at it below. <>

First of all, it is conducive to the development of society, and we know that the development of a society is the progress of its culture. So. Naturally, there is something new as well.

So naturally. For example, the study of the universe can lead to a lot of astronomical discoveries through the study of these things. This is very beneficial to the development of society.

Secondly, it is conducive to the research in our field, in the field of astronomy, he also has a very great influence in the world, so for us, the more we invest in research in this area, then the more results we can not receive, so that we can strengthen our achievements in this field, let. Leading the rest of the country, <>

Therefore, his significance is far-reaching, far more than what we say, so we should pay attention, of course, if conditions permit, we can also invest in this industry, through our own efforts, to promote his development.

Therefore, the more massive the celestial body encounters a black hole, the smaller it appears. Black holes will effortlessly swallow up the material around massive neutron stars. If it were any closer, the entire neutron star would be engulfed by a black hole.

If a very massive neutron star encounters a black hole, then the result is that it will definitely be sucked into it by the black hole, because the attraction of the black hole is very strong.

When they are close to each other, a rapid rotation will occur first, and then the neutron star will be flattened and then torn apart, so that the neutron star no longer exists, and some of its matter will be thrown into space and drift due to potential energy and ** force, producing some heavy elements such as gold and platinum, but most of its matter will quickly diffuse into the accretion disk of the black hole.

Black holes do not swallow matter without colliding with other celestial bodies.

This one is simple. The neutron star is torn apart and then falls into the black hole and disappears, while the mass of the black hole increases.

Although neutron stars have a very strong gravitational pull and a very high density, they are still not as good as black holes. When the two meet, as the distance decreases, the black hole's gravitational pull on the neutron star increases, and the neutron star gradually lengthens, like an elongated rugby. The neutron star then continues to approach the black hole, being stretched longer and longer by the tidal force of the black hole until it shatters into a long string of neutron matter, which falls into the black hole's event horizon one by one.

As a black hole absorbs the mass of a neutron star, its mass will also increase, which is reflected in the expansion of the black hole's horizon.

That's it.

Black holes are denser than neutron stars, so don't think of invincibility so narrowly. Unless the heart is touching, absorption is unlikely. Quasars are just a discovery.

Can you beat the rules when playing chess, thousands of years ago humans believed that the earth was the center of the universe. Newton's laws of motion were real hundreds of years ago. When de Broglie came up with the concept of a wave of matter.

Albert Einstein gasped too. The quasars observed so far can only be described as the most mysterious phenomenon so far. Because his existence is once again like the theory of relativity, quantum theory has hit Newton's laws hard, shaking the current theory.

Nowadays, there is no way to explain his superluminal speed (I personally think that its compressive dimension is different from ours, he moves normally in another dimension, but the projection in our dimension breaks the existing laws. I would like to discuss it with all scholars).

So it's hard to say what else will be discovered in the near future. Science is like a whirlpool. The deeper you dre, the more mysterious it becomes. That's right. About the so-called mutual restraint. Does it have anything to do with the evolution of the universe? I haven't thought about this for a while.

Reference**.

Neutron stars will be swallowed by black holes when they encounter them.

Gamma burst can occur when two systems of giant compact objects (such as neutron stars and black holes) merge.

The process of neutron star being swallowed by a black hole is not instantaneous: when approaching a black hole, the neutron star is first "torn apart" into tiny pieces, and then gradually sucked into the "mouth" by the black hole, during which a brief but intense gamma-ray burst occurs.

Neutron stars and black holes are both objects of great mass and gravitational pull.

But when they meet:

At a distance of 20 billion kilometers, the neutron star surface metamorphosis is unstable, and the magnetic field fluctuates significantly. At 10 billion kilometers, the extra-neutron material flies out and circles the black hole, after which the neutron star moves towards the black hole. At 5 billion kilometers, they will have a strong magnetic collision and release a large number of electrons and light, after which the energy of the neutron star will be slowly consumed and then swallowed by the black hole.

The same is true when a white dwarf meets a black hole, if a white dwarf meets a neutron star, the neutron star will constantly transfer its internal energy to the white dwarf, and when the white dwarf cannot bear too much energy, it will **. .

And then the gravitational force is of course the size of a black hole, and the gravitational force of a neutron star is large, but it is a drop in the bucket compared to a black hole.

If it does, the neutron star will be torn apart and swallowed up inside the black hole, which can swallow up too many things at once and produce gamma rays.

Black holes will swallow neutron stars. But because neutron stars have too much energy, black holes will also **.

On January 5, 2020, astronomers detected strong fluctuations from the universe about 900 million light-years away, and the fleeting "sound" was completely different from what had been detected before, and it was caused by a huge space-time ripple - gravitational waves, which traveled from more than 900 million light-years away to the entire universe. Ten days later, astronomers heard another similar "sound", gravitational waves hitting Earth's probes again.

Prior to this, astronomers had discovered the merger of black holes with black holes and neutron stars with neutron stars, and they had been waiting and anticipating a brand new collision until the discovery of these two events. The two events, named GW200105 and GW200115 respectively after the date of discovery, were carefully analyzed and identified as a collision between a black hole and a neutron star from the extremes of deep space.

A collision 900 million years ago

GW200105 and GW200115 are similar events, but the nature of the colliding objects is slightly different, and the names of science are relatively formal, so astronomers nickname them Lenny (GW200105) and Carl (GW200115), respectively. According to the research team, Lenny is a black hole with a mass about 9 times the Sun and a neutron star with a mass about twice the Sun, and Carl is a black hole with a mass about 6 times the Sun and a neutron star with a mass about twice the Sun. The merger event occurred 900 million years ago, and gravitational waves were only recently brought to us.

When we say "collision" or "merger" here, we are not entirely sure what happens when two objects finally come together, for a long time, they circle each other, trapped by each other's gravity, and eventually, they merge together.

Lenny and Carl's discoveries have helped reveal the most extreme objects in our universe, and hopefully, one day, humanity will be able to uncover the secrets behind them.