I really don't want to lie down and win

Thinking back to the question,

How to use pure mathematics to prove that the wobbling accretion disk really exists in the universe?

in fact,

This problem is not difficult at all, you only need to know the angular momentum of the neutron star, but the current value is unknown, once you know the angular momentum, and calculate the gravitational difference between the star and the neutron star, you can know whether it is in the neutron star. swing.

In general, it is spherical or axisymmetric.

If this asymmetry exists,

Another major earthquake is about to occur in the field of astrophysics.

"Hey?"

"Brother Chuanxiao...can you help me find out about the angular momentum value of the neutron star in the MAXI J1621501 binary star system?" Xu Mang asked, "I need an approximate value."

"this..."

"Our equipment won't work." Brother Chuan Xiao said seriously: "ESA's equipment may do this, but they won't be so boring."

"Oh..."

Xu Mang thought for a while, and said seriously, "Then I'll push it myself, calculate this value, and let them observe it by themselves."

words fell,

Hang up.

Then,

Xu Mang began to add an unknown angular momentum to it based on the content of the ridiculous neutron star swinging accretion disk, and deduced the calculation process from scratch. After an hour and a half of continuous calculation and verification, Xu Mang probably came up with a value.

Not accurate enough, but barely usable.

however,

Xu Mang also wanted to try it out. Based on the concept of wobbling accretion disks, Xu Mang felt that there was another phenomenon in the universe, the wobble jets of black holes, and the accretion disks of black holes were in an asymmetric structure.

Not to mention,

In the ESA database, Xu Mang found an observation data theory from 30 years ago, which is the data of the black hole in the V404 binary star system. At that time, the black hole ejected a large amount of high-energy matter and radiation.

Afterwards, Xu Mang found a paper by a certain ESA intern, which contained the data that the black hole had been dormant for 26 years and started to erupt again.

And Xu Mang noticed in his thesis that the behavior of the light source was intermittent and continuous.

For this,

Xu Mang thought this was the swinging jet of the black hole.

In order to verify his idea, Xu Mang established a corresponding black hole ejection model similar to before. The black hole is devouring the companion star, sucking matter into its accretion disk, and then some matter in the disk is ejected.

For some reason, the black hole is misaligned with its own accretion disk, causing the disk interior to wobble like a spinning top that is decelerating, ejecting energetic ions in different directions as it changes direction.

Subsequently,

It was the demonstration of Xu Mang's mathematical ability, which took him an hour.

"knock off!"

"That's it." Xu Mang looked at his two papers, didn't bother to revise them, and directly posted them on the website of the Princeton Astrophysics Association in the name of XY Laboratory.

...

ESA,

ESA.

This is an official organization dedicated to exploring space. However, recently many people in this organization have focused on NASA. An expert in the field of neutron stars recently got into a fight with an unknown laboratory.

This incident became a topic of discussion after dinner.

among them,

Professor Chester and Professor Carter, who also studied neutron stars, were the ones who paid the most attention to this matter, but they didn't make a sound, they just waited quietly. Unfortunately, the XY laboratory seemed to have disappeared.

"Ugh..."

"What a pity!"

in the lounge,

Professor Carter drank his coffee and said to his colleague Chester, "This XY laboratory seems to have disappeared, but the viewpoint is very novel and bold."

"Ok!"

"It's a bold and interesting point of view, but it lacks some basis and evidence." Chester laughed: "Whose laboratory do you mean this XY laboratory?"

"do not know."

"I always feel that this laboratory is very mysterious." Carter said seriously: "Maybe someone is doing a spoof, there is no such laboratory at all."

At this time,

Another colleague rushed to find the two.

"quick!"

"XY Laboratory published two papers!" The colleague said hastily.

"???"

"???"

This...

It was mentioned just now, and this happened?

With the help of an intern's laptop, Carter logged on to the website of the Princeton Astrophysical Society and soon found two papers from XY Laboratory.

No-nonsense neutron star wobbles accretion disk

black hole wobble jet

what's the situation?

How come black holes are involved?