Super Battleship Reborn

Xiao Yu knows that the dangerous areas in the universe are quite deterrent to any civilization. Xiao Yu once heard from Lucca II that a certain dangerous area in the galaxy caused the Guardian civilization to lose a considerable number of spaceships, and he never heard that the Guardian civilization divided it into an extremely dangerous area. What else did you do.

In other words, for that dangerous area, the guardian civilization is powerless.

The neutron war star manufacturing technology of the sweeper civilization was also obtained from an extremely dangerous area. Come to think of it, the Sweeper civilization must have paid a heavy price for obtaining this technology.

Xiao Yu also reached a dangerous area once, which was a moderately dangerous area in the Eagle Nebula. It was there that Xiao Yu met the powerful alien creature that could survive on the white dwarf. That strange beast, in its heyday, undoubtedly reached level six. In other words, even the guardian civilization would find it quite difficult to face this guy.

So Xiao Yu believes that an extremely dangerous area should be enough to make Guardian Civilization give up hunting him. After all, I am only a fifth-level civilization, so I shouldn't let a sixth-level civilization risk my life to chase after me, right?

In front of Xiao Yu, a white dwarf and a neutron star are rotating quietly. Xiao Yu at this moment is 40 billion kilometers away from the neutron star. This distance is the limit that curvature navigation can reach. If you move forward, you will be affected by the gravitational force of the neutron star, which may cause accidents in curvature navigation. So Xiao Yu got out of the state of curvature navigation, and was advancing rapidly at a speed of 170,000 kilometers per second in a conventional navigation method.

Three hours later, Xiao Yu advanced a distance of 1.8 billion kilometers. At this moment, in the rear, the fleet of guardian civilization appeared. Xiao Yu knows that the guardian civilization that has mastered space technology has the ability to sail within the galaxy regardless of the influence of gravity, but the fleet of the guardian civilization did not move forward. It seems that there is an invisible barrier ahead, keeping them there. This fact made Xiao Yu feel a little more relaxed.

They should be afraid of this extremely dangerous area... Xiao Yu thought secretly.

Shenzhou civilization, there is a level five extremely dangerous area ahead. If you don't want your race to perish, you'd better come back now. If you can belong to our Guardian Alliance, we will consider not destroying you. At this time, Xiao Yu receives a message from Guardian Civilization.

Xiao Yu simply ignored it, but still maintained his own speed and drove forward.

The guardian civilization has not caught up. In the virtual meeting room, Xiao Yu said quietly, It seems that the guardian civilization is not willing to enter such a dangerous place. Then, we are safe for the time being.

I don't know why, but I always have a bad feeling. Luka II said with some worry, It seems that something bad will happen in the next moment. This feeling is very bad, very bad .”

After all, this is a level five extremely dangerous area. It is impossible without danger. Xiao Yu replied, No matter what danger there is, just face it bravely. Maybe there are some existences here that can help us Bring hope.

Having said that, the mood of these scientists and Xiao Yu is not relaxed at all.

Hundreds of the most eminent scientists are all in virtual conference rooms, ready to respond to emergencies. All Xiao Yu's spaceships are ready to deal with any danger at this moment.

The routine voyage is still going on, and the distance between Xiao Yu and the target is getting closer and closer. Finally, after three days,

Xiao Yu reached the planet and stopped.

The radiation here is very strong. The distance between these two planets and their host star, the white dwarf, is only 30 million and 100 million kilometers. At such a distance, if there is no spaceship as a shield, the radiation energy of a white dwarf is enough. kill any creature.

The distance between the white dwarf and the neutron star is only a billion kilometers. At such a short distance, the powerful radiation energy of that neutron star can easily reach here. The visible light here is very weak, but in the invisible light band, it is not too much to say that these two planets are being roasted.

This is the first time in more than 10,000 years that Xiao Yu has observed a neutron star so closely. A neutron star is an even more extreme object than a white dwarf. It is small in size but massive in mass. A typical neutron star has a diameter of only about ten kilometers, but its mass can reach nearly twice the mass of the sun. This means extremely terrifying density.

There is no doubt about the power of the neutron star, such a small thing that is not even as large as the mountain range above the earth, but it has extremely powerful energy.

The Crab Nebula originated from one of the most famous supernova explosion events in history, which was probably in the Song Dynasty of China. This time the supernova explosion made another moon appear in the sky, which can be clearly seen even in the daytime. The star that caused the culprit of this incident was blown to pieces in that incident, and its bones have expanded to eleven light-years in size. At the center of this vast nebula lies a neutron star.

This neutron star is a pulsar, and its radius is only about ten kilometers, but its intense radiation illuminates the surrounding space of eleven light years. Surrounding this neutron star is the gas ejected by the exploding star. The radiation of this neutron star reacts with these gases to emit brilliant visible light.

A small thing with a radius of ten kilometers can illuminate a space of more than ten light years, which shows the power of neutron stars.

Compared to neutron stars, white dwarfs are typically the size of Earth, 0.6 times the mass of the sun. Extreme objects such as neutron stars and white dwarfs have a very weird property, that is, the greater the mass, the smaller the volume. The volume of a neutron star is much smaller than that of a white dwarf, so its mass is also much larger than that of a white dwarf.

This is a magnetar. Xiao Yu said, It has an extremely strong magnetic field, but it is not a pulsar.

There are also many types of neutron stars, pulsars and magnetars are all types of neutron stars. Magnetars, as the name suggests, some neutron stars have extremely strong magnetic fields for some unknown reasons, so they are called magnetars.

The magnetic field of a magnetar is very strong. According to data estimates, if a human being stands thousands of kilometers away from a magnetar, all the iron elements in the human body will be attracted by the magnetar. Walk. Compared with Magneto, the Magneto shot in the movie is just an insignificant little ant.

Yes, it's a magnetar. Luca No. 3 nodded and agreed with Xiao Yu's statement, and then Luca No. 2 continued: Master, have you found it? This neutron star is weird, it spins too slowly.

Neutron stars are invisible in visible light. Because the temperature of a neutron star is too high, according to the principle of black body radiation, the light emitted by it will be X-rays and gamma rays. In other words, even if a human being stands in front of a neutron star, he cannot see the existence of the neutron star. It's just that in this star system, there are all kinds of radiation everywhere, which shows the power of this neutron star all the time. By measuring this radiation, Xiao Yu can easily obtain various data about this neutron star.

Xiao Yu had long noticed that this neutron star rotated too slowly, and tried to explain it, but Xiao Yu found that he could not give any reasonable explanation for this phenomenon in his existing theory.

The neutron star spins extremely slowly, about once every three days. This phenomenon is very strange.

The rotation of stars appears because of the control of the principle of conservation of angular momentum. At the stage when the interstellar dust forms the original star, due to the gravity collapse, the interstellar dust gathers to the center and also brings the power of rotation, which is the same no matter for the planet or the star. Therefore, everything in the visible universe is rotating.

Huge stars have rotation. After going through the supernova explosion stage, part of the mass is ejected, and the other part of the mass collapses into a neutron star or a white dwarf. After that, its volume is reduced by tens of millions of times, but its angular momentum does not change much. , since most of its mass is preserved.

The volume shrinks and the mass remains the same, because of the principle of conservation of angular momentum, its rotation must be accelerated. Therefore, the rotation speed of a neutron star is terrifying, and can even reach the millisecond level, that is, it rotates hundreds of times per second. Among all the neutron stars observed by Xiao Yu, the one with the slowest rotation has a rotation speed of about fifteen minutes. Compared with the earth, this rotation speed is fast enough.

However, the rotation speed of this neutron star is even as slow as three days.

Such a neutron star is almost impossible to exist. The reason is very simple. The rapid rotation brings about a very high centrifugal force. Under the action of such a strong centrifugal force, this neutron star can maintain its gravitational balance and put itself in a In a stable state, the centrifugal force brought about by one rotation in three days is minimal, and it is impossible for it to counteract its own strong gravity and stabilize itself. This is a contradiction.

However, although there is no way to explain this phenomenon, Xiao Yu did not find it incredible. This is a level five extremely dangerous area. In such a place, there is a strange neutron star. Isn't this a normal thing? (To be continued.)