I really don't want to lie down and win

"..."

"You don't know English?" Professor Yuan asked.

"meeting."

"Level four." Xu Mang said awkwardly.

Professor Yuan was at a loss for words for a while, thought for a while, and said, "Just pretend to understand."

Xu Mang nodded, pretending to be serious.

unfortunately,

After persisting for a few minutes, Xu Mang was dying, but because of his face, he couldn't sleep, and gradually went to extremes in waking up and dozing off.

suddenly,

The atmosphere in the venue became a little frenzied. Everyone was applauding. Xu Mang didn't know what happened, so he started applauding too.

"Professor Yuan?"

"What happened?" Xu Mang asked curiously while applauding, "An earthquake?"

Professor Yuan: "???"

This...

Is this really a special guest who came to participate in the Black Hole Academic Exchange Conference?

Not for tourism?

"NASA has revealed evidence of the possibility of a black hole at the beginning of the universe, a black hole 13 million years after the big bang, which is a big step forward from the previous black hole [-] billion years after the big bang." Professor Yuan explained.

Then,

Xu Mang saw the legendary early black hole on the big screen, which was actually a pixel.

Although he couldn't understand some technical terms, Xu Mang roughly figured out what it was through his own understanding of black holes. This should not be a black hole, but a kind of extremely bright celestial body called a quasar, which is also called a star-like object.

It is generally believed that quasars are active galactic nuclei. According to the theoretical model of active galactic nuclei, there is a supermassive black hole at the core of a galaxy.

of course,

Xu Mang's understanding of this type of celestial body was only so far.

"Professor Yuan?"

"This should be a quasar, right?" Xu Mang asked curiously, "But according to the data, this type of star is too dim."

"do not know."

"The staff of NASA are also a little confused about this. They only detected three roentgen ray photons." Professor Yuan said: "These three roentgen ray photons have high energy. This hidden celestial body."

Xu Mang: °ー°〃

With so few roentgen ray sources, the presence of QPO cannot be detected at all...

at this time,

Xu Mang had an unrealistic and bold idea, would the source of the piano ray be covered by the gas?

......

Chapter 344 Academic feast (3/3, add more for Chun Chun)

The reason why Xu Mang thinks it is an unrealistic idea is because quasars are the result of the rapid growth and expansion of supermassive black holes in space. Most of them grow by absorbing stellar matter. As the black hole rapidly absorbs a large amount of gas and dust, and the area around them begins to emit intense radiation.

This should be the source of the roentgen ray source, but... as the black hole gets bigger and bigger, then the bright spot of the quasar will get brighter and brighter, if according to NASA, it was formed only 8.5 million years after the big bang, it should Almost all sucked.

unless...

This gas cloud is like no other.

"Professor Yuan?"

"Do you have any unique understanding of gas clouds?" Xu Mang asked cautiously.

"Gas cloud?"

"This is a very complicated thing." Professor Yuan said, "Do you want to understand it briefly, or do you want to understand it systematically?"

Xu Mang hurriedly said, "Behind."

"Then you have dinner, come to my room, and I will tell you about the contents of the gas cloud." Professor Yuan said.

Xu Mang froze for a moment, thought for a long time, and whispered, "Okay."

"???"

what's the situation?

Why do you have the same expression as a thief.

"Xu Mang?"

"Did you find anything?" Professor Yuan asked.

"Ok!"

"I think...the reason why only three roentgen ray photon energies were detected is because..." Xu Mang said with a smile, "Because I'm so handsome."

"..."

"You're still hiding it, kid." Professor Yuan said with a smile, "Do you think the gas cloud covers the source of Roentgen rays?"

"what?"

"You also know?" Xu Mang asked with a confused face, "I thought I was the only one who knew."

"We've already studied it."

"It's not just us, scientists all over the world have studied it." Professor Yuan said: "A long time ago, a scientific research team made a gas accretion model of a supermassive black hole in a large galaxy. From this model, it was analyzed that, The gas cloud cannot hide the quasar."

What the hell!

Buddies are excited in vain.

Xu Mang said helplessly, "Then I won't come at night."