Xiao Yu knows that dangerous areas in the universe are quite deterrent to any civilization. Xiao Yu once heard Luca 2 say that a certain dangerous area in the galaxy requires the guardian to
The civilization has lost a considerable number of spaceships, and it is not known that the guardian civilization has done anything other than classifying it as an extremely dangerous area.
In other words, the guardian civilization is powerless against that dangerous area.
The neutron battle star manufacturing technology of the Sweeper civilization was also obtained from an extremely dangerous area. It seems that when acquiring this technology, the Sweeper civilization must have paid a heavy price.
Xiao Yu also reached a dangerous area once, which was a moderately dangerous area in the Eagle Nebula. It was there that Xiao Yu encountered the powerful alien creature that could survive on the white dwarf star. That alien beast,
In its heyday, it undoubtedly reached level six. In other words, even the guardian civilization would find it quite difficult to face this guy.
Therefore, Xiao Yu believes that an extremely dangerous area should be enough for the guardian civilization to give up the pursuit of him. In the end, he is only a fifth-level civilization, and he will not let a sixth-level civilization take risks to pursue him.
Give it up?
In front of Xiao Yu, a white dwarf star and a neutron star are moving quietly. At this moment, Xiao Yu is 40 billion kilometers away from the neutron star. This distance is the limit that can be reached by curvature navigation. If you move forward, you will
Affected by the gravitational pull of the neutron star, it may cause accidents in the curvature navigation. Therefore, Xiao Yu broke away from the curvature navigation state and used conventional navigation to move forward rapidly at a speed of 170,000 kilometers per second.
Three hours later, Xiao Yu advanced a distance of 1.8 billion kilometers. At this time, from behind, the fleet of the Guardian Civilization appeared. Xiao Yu knew that the Guardian Civilization, which has mastered space technology, has the ability to ignore gravity inside the galaxy.
Affected, the ability to launch curvature navigation, but the fleet of the Guardian Civilization did not continue to move forward. It seemed that there was an invisible barrier in front of them, making them stay there. This fact made Xiao Yu feel a little more relaxed.
"They should be wary 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 species to be exterminated, you'd better come back now. If you can belong to our Guardian Alliance, we will consider not annihilating you." At this time, Xiao
Yu received a message from the Guardian Civilization.
Xiao Yu simply ignored it, but still maintained his speed and drove forward.
"The Guardian Civilization did not catch up." Xiao Yu said quietly in the virtual conference room, "It seems that the Guardian Civilization is not willing to enter such a dangerous place. So, we are safe for the time being."
"I don't know why, I always have a bad feeling." Luca 2 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 to be without danger." Xiao Yu replied, "No matter what danger there is, just face it bravely. Maybe there are some beings here who can help us.
Bring hope.”
Having said that, these scientists and Xiao Yu did not feel relaxed at all.
Hundreds of the most outstanding scientists are all in the virtual conference room, ready to respond to emergencies at any time. All of Xiao Yu's spacecraft are now ready to deal with any danger.
The regular navigation continued, and the distance between Xiao Yu and the target was getting closer and closer. Finally, after three days, Xiao Yu arrived at the planet and stopped.
The radiation here is very strong. The distance between these two planets and their host star, the white dwarf star, is only 30 million and 100 million kilometers. At this distance, if there is no spacecraft for protection, the radiation energy of a white dwarf star is enough
Kill any living thing.
The distance between this white dwarf star and the neutron star is only one billion kilometers. At such a short distance, the powerful radiation energy of the neutron star can easily reach here. The visible light here is very weak, but in the invisible light band, it is said that the two planets are in
It’s not too much to accept the roasting.
This is the first time in more than 10,000 years that Xiao Yu has observed a neutron star at such a close distance. A neutron star is an even more extreme celestial body than a white dwarf. It is small in size but has a large mass. A typical neutron star has
The diameter is only about ten kilometers, but the mass can reach nearly twice the mass of the sun. This means an extremely terrifying density.
There is no doubt about the power of neutron stars. Such a small thing, which is even smaller than the larger mountains on the earth, possesses extremely powerful energy.
The Crab Nebula originated from one of the most famous supernova explosions in history, probably during the Song Dynasty in China. This supernova explosion caused another moon to appear in the sky, which could be clearly seen even during the day. That
The star that was the culprit of this incident was blown to pieces in that incident. Its corpse has expanded to eleven light-years in size. In the center of this vast nebula, there is a
A neutron star.
This neutron star is a pulsar. Its radius is only about ten kilometers, but its intense radiation illuminates the surrounding space of eleven light years. Around this neutron star are the particles ejected by the exploding star.
Gas, 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. This shows how powerful neutron stars are.
Compared with neutron stars, the typical volume of a white dwarf is the size of the Earth and 0.6 times the mass of the sun. Extreme celestial bodies such as neutron stars and white dwarfs have a very strange characteristic, that is, the greater the mass, the smaller the volume. The volume of a neutron star
It is much smaller than a white dwarf, so its mass is much greater 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, including pulsars and magnetars, which are both types of neutron stars. Magnetars, as the name suggests, have extremely strong magnetic fields due to some unknown reasons, so they are called magnetars.
The magnetic field of a magnetar is very strong. According to data estimates, if a human stands thousands of kilometers away from a magnetar, all the iron elements in the human body will be attracted by the magnetar.
Go. The Magneto filmed in the movie is just an insignificant little ant compared to Magneto.
"Yes, it is a magnetar." Luca 3 nodded, agreeing with Xiao Yu's statement, and then Luca 2 continued: "Master, have you discovered it? There is something weird about this neutron star. It
The rotation is too slow."
Neutron stars are invisible in the visible light band. Because the temperature of neutron stars is too high, according to the principle of black body radiation, the light they radiate will be x-rays and gamma rays. In other words, even if a human stands in front of a neutron star,
He also couldn't see the existence of a neutron star. However, in this star system, there are all kinds of radiation everywhere, which shows how powerful this neutron star is all the time. By measuring this radiation, Xiao Yu can easily
All kinds of data about this neutron star were obtained.
Xiao Yu had long noticed that the neutron star was rotating too slowly, and had tried to explain it. However, Xiao Yu found that he could not provide any reasonable explanation for this phenomenon within his current theory.
The rotation speed of this neutron star is extremely slow, about one rotation every three days. This phenomenon is very strange.
Stars rotate because of the principle of conservation of angular momentum. In the stage when interstellar dust forms primitive stars, due to gravity collapse, interstellar dust converges towards the center and at the same time brings the power of rotation. This point, whether it is
It's the same for planets or stars. Therefore, it can be seen that everything in the universe is rotating.
A huge star has a rotation. After going through the supernova explosion stage, part of its mass is ejected, and the other part of its mass collapses into a neutron star or a white dwarf. Its volume shrinks tens of millions of times, but its angular momentum does not change much.
, because most of its mass is preserved.
The volume shrinks but the mass remains unchanged. Because of the principle of conservation of angular momentum, its rotation must speed up. Therefore, the rotation speed of the neutron star is very terrifying, and can even reach the millisecond level, that is, it rotates hundreds of times per second. Xiao Yu
Among all the neutron stars observed, it is the slowest rotating one, with 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 one rotation in three days.
It is almost impossible for such a neutron star to exist. The reason is very simple. Rapid rotation brings extremely high centrifugal force. Under the action of such strong centrifugal force, this neutron star can maintain its own gravitational balance and keep itself in a
Under a stable state, the centrifugal force caused by one rotation in three days is negligible. It cannot offset its own strong gravity and stabilize itself. This is a contradiction.
However, although there is no way to explain this phenomenon, Xiao Yu does not find it incredible. This is a level five extremely dangerous area. In such a place, there is a weird neutron star. Isn't this normal? (To be continued)