Top Student

"Wow, Lou Song, you still know this?"

"Well, I also like astronomy."

Lou Song usually focuses on mathematics, but even in the competition of physics, it is difficult for most students majoring in physics to compare with Lou Song.

At this time, although everyone felt that Xu You's point of view was a bit unbelievable.

But at least for now, it makes sense in theory.

"Well, let's do some calculations now. If this Planet-X is really a black hole, what is its radius?"

After speaking, Xu You quickly took out a pen and paper and started to calculate.

Only then did everyone understand that this was another "question-fighting" competition, and they all quickly took out their paper and started to calculate.

Although Xu You did not specify any specific conditions.

But in fact, everyone has ideas about this question that Xu You temporarily asked.

First of all, everyone has calculated the quality of Planet-X before, which is equivalent to a known condition.

The main problem now is to calculate the density of the black hole.

Some people might think that the density of black holes is infinite.

But if we analyze according to the definition of a black hole, when light approaches a black hole, even light cannot escape from the black hole.

That would define an event horizon for the black hole—the boundary at which the escape velocity is greater than the speed of light.

Through these conditions, the calculated event horizon radius is the Schwarzschild radius of the black hole.

Once these are identified, the problem becomes very clear.

Soon, Xu You calculated the density of the black hole based on these conditions, and under this assumption, the radius of Planet-X.

Although Lou Song started a little slower than Xu You, but with the advantage of calculation speed, he finally completed the calculation almost at the same time as Xu You.

Lin Shi and Luo Wenkun didn't slow down too much this time, and they both completed their calculations not long after.

When the four of them had finished their calculations, they compared the final results together.

Seeing the consistent result, everyone knows that each other's calculations are correct.

"Based on this assumption, the radius of Planet-X is only about 4.5cm. A celestial body the size of a fist is really unimaginable."

Like Luo Wenkun, everyone has already thought that through this assumption, the calculated radius of Planet-X must be very small.

But I didn't expect it to be so small.

An object the size of a fist has ten times the mass of the Earth.

This is indeed somewhat beyond the cognition of ordinary people.

"It's been calculated, but how do we prove whether this theory is correct or not? We can't say that constructing such a possible theoretical model is considered to be the completion of this project."

Xu You seems to have been prepared for this question.

"As Lou Song said just now, it is theoretically possible for a special kind of black hole such as primordial black hole to exist. Primordial black hole was born in the early universe environment, some very dense matter, squeezed by the powerful energy of the Big Bang , it is possible to form such a primary black hole. Compared with ordinary black holes, primary black holes are very stable."

"So, there might really be a black hole in the solar system?"

"Yes, there is indeed such a possibility. Moreover, the primordial black hole may also be related to dark matter. If the primordial black hole is confirmed, it can also explain many problems that cannot be explained by current theories."

Hearing what Xu You said, everyone felt that this theory, which sounded a little unbelievable before, was still possible.

"There may be black holes in the solar system? Outrageous, outrageous!" Luo Wenkun complained.

Xu You's new theory not only gives everyone a new direction, but also makes them realize that this topic is not just about finding Planet-X.

Even more unsolved mysteries of astronomy will be solved.

After calming down, everyone began to think about the next question.

"So, how do we prove that Planet-X is a black hole?"

Originally, it was very difficult to discover a black hole.

Not to mention, it is such a black hole with a radius of only 4.5cm.

Xu You thought for a while and continued:

"It's difficult to prove, but it's not impossible. You know, comets approaching a black hole will be absorbed by the black hole. During this process, the comet will interact with the hot gas accumulated in the area, and some radiation signals will appear , that is, accretion flares. If we can find flares in the solar system, then the hypothesis that Planet-X is a black hole has sufficient evidence."

Hearing Xu You's analysis, Luo Wenkun couldn't help saying excitedly:

"Fuck, Xu You, how did your brain come up with these theories? I really want to cut your brain open to see what kind of structure it is inside."

"It's not that exaggerated. Everyone's brains are similar, but I read more books."

These days, Xu You still maintains the habit of dragging his suitcase to the library every two days, and returns with a full load every time.

After all, such a large loan amount cannot be wasted.

And these days, Xu You also read a lot of materials and documents related to astrophysics.

This new theory is not just a momentary inspiration, but a spark of inspiration after a large amount of knowledge has been accumulated.

"Although we can't record any data by ourselves, the amount of data provided by Mr. Huang is sufficient. As long as we can analyze the clues of the flare from these data, then our theory will have a high certainty."

"However, since these data have already been analyzed by others, can we analyze anything new from them?" Lin Shi asked.

"Don't worry about this, because the amount of data recorded by the observatory is very large. Faced with such a large amount of data, those scientific researchers also analyze it from certain dimensions, and it is impossible to fully analyze the information in the data. As long as the method is appropriate , it is entirely possible for us to discover some new information."

After hearing what Xu You said, everyone had a clear direction.

Immediately, under the leadership of Xu You, everyone started a new round of work.

Lou Song is good at modeling, so based on Xu You's new theory, he simulated the position and trajectory of the possible flares emitted by Planet-X.

Xu You, Lin Shi and Luo Wenkun are in charge of data processing and analysis, looking for some clues in these data.

This kind of work seems to be very simple, but in actual implementation, it is actually very complicated and requires a lot of energy.

Although in theory, even if the volume of Planet-X is really very small, it will not affect its absorption of comets entering the gravitational range.

But because the theoretical orbit length of Planet-X is very large, the area that needs to be focused on is also very large.

Not to mention, the trajectory curve of Planet-X is only a simulation, and there may be certain errors in the real situation.