Professor Xie's excited appearance made Ye Fei raise his vigilance again, and hurriedly controlled the armor, ready to give the old man another shot.

Professor Xie, who was contemplating the mercury star, did not notice Ye Fei's abnormal movement at all, and still kept chanting: "I have never forgotten this matter all these years, and I will hate it for life, I didn't expect it, I didn't expect that this place is so similar to the neutron galaxy......" Speaking of this, he suddenly froze, and the whole person stood on the spot like a wood carved clay sculpture.

Ye Fei was startled, thinking that it was a complication caused by high blood pressure, and he was about to inject the old man, but before the order was given, he saw that his blood pressure miraculously plummeted, and soon dropped below the safety line.

Does the drug work so quickly?

Ye Feihu glanced at the monitoring situation suspiciously, but found that the blood pressure injection had not had time to be injected, and he suddenly became messy in the wind - what is the situation? Is this blood pressure? It's up and down, it's a roller coaster, okay?

"Uh, Old Xie?" Ye Fei, who felt that Professor Xie's situation was not good, screamed tentatively.

Professor Xie, who came back to his senses, was full of dullness: "Mercury star, both neutron galaxies have mercury star!" ”

"What? What do you want to say? Ye Fei, who didn't hear clearly, looked puzzled.

"I mean, the appearance of Mercury is probably not accidental!" Professor Xie fully recovered and said word by word.

"Am I right?" Ye Fei was very surprised, "You want to say that supernova explosions will form mercury stars?" No, I've been to the Pulsar Marine, and there's no mercury there. ”

"Two of the three neutron stars form mercury stars, which is telling!" Relieved from his sluggishness, Professor Xie became excited again. "There must have been some factor that led to the creation of mercury...... If Betelgeuse swallows three planets in the process of red giantization, the third debris is the sixth or seventh planet, and generally speaking, the planets in this position are basically giant planets...... Then the third wreckage we see now is likely to be the solid core of the sixth planet! ”

"Is the solid core of the giant planet directly related to mercury?" Ye Fei's astronomical knowledge is quite passable, but when it comes to more esoteric astronomical knowledge, he will immediately be numb.

He was a soldier who fought with extraterrestrial civilizations, not an astronomer who specialized in research.

"I guess, it's highly likely!" Professor Xie's expression was solemn, but his eyes lit up.

Ye Fei's curiosity was aroused. said like a cross talk: "How do you say it? ”

"When galaxies were formed. Heavy elements usually form terrestrial planets closer to stars, while lighter elements usually form gas giants in more distant orbits, according to known rules of galaxy formation. Ninety percent of the location of the third wreck is a giant planet. And the first and second wreckage. It is also very likely that the inner core left behind by the giant planet. Professor Xie, who seemed to have discovered a new continent, said impatiently.

"The first two wrecks are also giant planets?" Ye Fei couldn't figure out why the third wreckage was halfway through and pulled on the other two wreckage.

"It's possible!" Professor Xie said. "Of course, it doesn't matter what planet left those two wrecks on, the important thing is that the time of Betelgeuse's Red Juhua is at least hundreds of thousands of years, and it is absolutely impossible for the Red Juhua to be achieved overnight, but gradually and slowly expands, gradually engulfing the planet closest to him."

Professor Xie became more and more excited: "In the process of red giantization, Betelgeuse will throw out a large amount of stellar material, and the solar wind and other stars will be unimaginably violent...... What do you think will happen? At this point, his eyes seemed to turn into two sparkling stars.

"Giant planets close to the surface of a star...... Isn't that hot Jupiter? Ye Fei smiled dumbly, "Don't look at my knowledge level is not as good as yours, but I am a person who has seen Jupiter with my own eyes." ”

"Then you know for sure what happens to Hot Jupiter!" Professor Xie instinctively guided Ye Fei's thoughts.

Originally, the professor was referring to a senior teacher who taught at a university, so Professor Xie unconsciously brought some professional habits into the conversation between the two.

Ye Fei replied without hesitation: "Heat the planet and devour the gas...... Is there also an accelerated gas loss? ”

"Pretty much the same." Professor Xie nodded approvingly, "The heat will cause the temperature of the giant planet to rise, the distance will be shortened to a certain extent, and the star will also rob the mass of the giant planet, and I think that before the star swallows the giant planet, most of the gas on the giant planet will be swallowed up by the star, or blown away in the strong solar wind, and finally only a solid core will be left." ”

"The giant planet is large and gravitational, and it must have swallowed a lot of celestial bodies in its lifetime." Speaking of this, Professor Xie pointed to the first debris on the screen, "We still don't know the internal structure of the giant planet, if the liquid inner layer of the giant planet is dense enough, then most of the material it swallows will be suspended at a certain depth in the hydrogen element ocean according to the different densities. Personally, though, I don't think it's very likely that this will happen, and all the matter will sink to the bottom of the ocean of hydrogen. ”

"All the gas is sucked away by the stars, so what does it matter if those things are suspended or sunk to the bottom?" Ye Fei asked puzzledly.

"It really doesn't matter, hehe, it's my old man who is too verbose." Professor Xie smiled and said, "Think about it, what does a giant planet that has lost all its gas look like with a solid core?" ”

"Got it, like terrestrial planets." Ye Fei replied with a wry smile.

"That's right, and it's probably bigger than terrestrial planets." Professor Xie drew a very large circle outside the image of the first debris, "The solid core moves at the edge of the star, constantly affected by high temperatures, and the substances with low melting points will continue to evaporate and dissipate, and only the substances with high melting points can remain, I think, this is the planetary debris you see." ”

"What about mercury? Mercury is a liquid metal with a boiling point of less than 100 degrees at room temperature! After talking for a long time, Ye Fei finally found an opportunity to straighten the crooked building.

"To be correct, the boiling point of mercury is more than 300 degrees." Professor Xie smiled, as if he didn't see Ye Fei's embarrassment, "Mercury Star was originally supposed to be a giant planet far away from the surface of the star, because of the distance, the gaseous material on the giant planet should not be swallowed by the star, but evaporated in large quantities due to high temperature, and it is likely that it still did not evaporate before the supernova exploded." (To be continued......)