Zhang Heguang raised his eyebrows, spread his hands helplessly, and sighed:
"What the hell else can I do in this shitty place?"
"In the morning, I turn on the computer, get a glass of water, read literature, type code, and get scolded by the instructor."
"Then have lunch at noon, play with the cat, take a nap, watch a drama, then turn on the computer in the afternoon, get a glass of water, read literature, type code, and continue to be scolded by the instructor..."
"...."
Looking at Zhang Heguang, who had a sad expression on his face, a trace of sympathy suddenly appeared on Xu Yun's face.
Speaking of the four words astrophysics, most people may have a picture like this in their minds:
Against the vast and deep dark blue background, a huge planet is shining with dazzling light, surrounded by several other smaller stars.
The tails of those stars trailed light white tracks, forming a rotating vortex with the central planet...
But in fact.
Astrophysics is a major that involves a lot of mathematical formulas.
Most of them just read literature and push formulas every day, and then make a cup of wolfberry tea and sigh about life...
Of course.
For doctoral students like Zhang Heguang, they can participate in other large and small projects in between hard days.
So after finishing his rant, Zhang Heguang still had a grimace on his face and started counting with his fingers:
"In addition to the literature, HKUST has recently subcontracted part of the sky survey data analysis, and this job fell on me. I feel like I am almost redshifted."
"There are also some projects on MOST and HXMT, as well as black hole models, X-ray binary star systems and other studies, which are very boring anyway."
Xu Yun nodded thoughtfully.
Then he quickly glanced at Zhang Heguang and found that the other person's attention was not on him, so he pretended to be curious and asked:
"X-ray binary star system? Lao Zhang, I remember there were reports before that our solar system may also be a binary star system. Is there a star in the far distance of the solar system? Is there any progress now?"
"What progress can be made then?"
Zhang Heguang snorted disdainfully and spread his hands:
"It's just some marketing accounts setting the pace. Nemesis Star is as cool as Wu Sign right now."
"If you search on NASA, you will know that the last project team to explore the planet Nemesis was disbanded last year due to lack of funds. The project mentor is now playing guitar and singing on TikTok every day - this is true."
Xu Yun: "...?"
Good guy.
I asked myself casually, and the follow-up content is so exciting?
Perhaps his interest was aroused by Xu Yun's words, so Zhang Heguang continued to add:
"However, compared to the elusive second star in the solar system, the current research on the ninth planet is still quite popular."
Xu Yun was stunned for a moment, then quickly asked after coming back to his senses:
"How to say?"
Zhang Heguang thought for a while, put his hand into his trouser pocket and took out his mobile phone.
After a few tinkerings, he created a page and handed it to Xu Yun:
"Well, it's that Pluto killer Mike Brown. They recently discovered an asteroid with an abnormal orbit."
"Furthermore, the deflection trajectory of this asteroid is higher than the original six examples. It is difficult to explain it by pure chance, so the probability of Planet Nine is immediately raised."
Xu Yun took the phone with some subtle emotions and looked at it carefully.
as expected.
Just as Zhang Heguang said, the Mike Brown team, which has been working with Kuyinbo belt objects in recent years, announced that it has discovered an abnormal orbit of an asteroid.
Mentioned earlier.
The most critical evidence currently supporting the existence of Planet Nine is the movement trajectories of six stars: Sedna, 2004 vn112, 2007 tg422, 2010 gb174, 2012 vp113, and 2013 rfs98.
The orbits of these six asteroids have certain similarities, for example, the direction of perihelion has a tendency to gather in a certain direction, etc. Ultimately, a common source of gravity can be deduced.
But this is just pure data analysis, and there are other explanations for this situation.
Therefore, this topic has always been controversial.
The result was unexpected...
Mike Brown, the Pluto killer, actually discovered a new asteroid.
Of course.
This asteroid still cannot be regarded as substantial evidence. It can only be said that it makes Planet Nine more likely in mathematical calculations.
Xu Yun then handed the phone back to Zhang Heguang, remained silent for a moment, and asked:
"Lao Zhang, when was this discovery announced?"
Zhang Heguang took the phone, put it back in his trouser pocket after turning off the screen, and recalled:
"It's been a while, maybe... three or four months?"
When Xu Yun heard this, a trace of thought flashed in his eyes.
At this time, less than two months have passed since he returned to reality, which means that the discovery of Mike Brown's team should have nothing to do with the Halo mission.
It's just that due to professional barriers, Xu Yun had never noticed this information before.
That seems to be a pure coincidence...
On the other side, Zhang Heguang's voice was still heard:
"So in the past few months, many laboratories at home and abroad have re-researched this topic."
"For example, there are three project teams affiliated with NASA and five under the European Space Agency. Counting various observatories and universities, the number should not be too small."
"There are probably six or seven project teams here in China. Of course, the number seems to be large, but in fact the funds approved are relatively limited - in the final analysis, it is just a probability."
Xu Yun nodded in understanding.
This is a well-understood situation - because there are so many astronomical phenomena in the universe.
This chapter is not over, please click on the next page to continue reading! In the vast starry sky, there are countless examples that are more shocking than the orbital deviation of a certain asteroid.
Sights such as Tabby's Star, the Great Red Spot of Jupiter, the Eternal Light Peaks, etc. are all mysterious and shocking.
It may be possible to write an excellent paper about the anomalies of a certain star, but if you want to obtain high scientific research funding, the possibility is very low.
Then Xu Yun was silent for a moment, and continued to pose a question as if nothing had happened:
"Tsk, tsk, the ninth planet in the solar system...Old Zhang, have you got any results from your laboratory?"
Although the Astronomy Department of the University of Science and Technology of China is not well-known within the school, it is well-known in the industry.
For example, the Purple Mountain Observatory’s graduate school has been placed under the name of HKUST, and half of domestic astronomical institutions are related to HKUST.
Therefore, Xu Yun's question sounds quite normal to Zhang Heguang - it is not certain internationally, but if there is any domestic institution that is most likely to produce results in the field of Planet Nine, then HKUST is obviously the best answer.
:
"Not yet. Two phases of images have just been sent over there. The results of the part that have been released so far are not very optimistic."
Xu Yun was slightly startled:
most?"
"What's wrong?"
Seeing Xu Yun's expression, Zhang Heguang looked him up and down quickly:
"If you dare, don't blame me for beating you."
Xu Yun quickly waved his hand:
"No, no, I just haven't listened to most in a long time. Don't think too much."
Speaking of China's famous telescopes, one word may pop up in most people's minds:
Guizhou Sky Eye.
That is, a 500-meter-aperture radio telescope fast.
But in addition to fast, China also has several famous telescopes.
Most of the large-area multi-objective fiber optic spectroscopic telescopes have mixed reviews.
It was named the "Guo Shoujing Telescope" in April 2010, and its official sky survey was launched in September 2012.
It is a major scientific and technological infrastructure with extremely high investment in our country. However, after operation, it exposed a big problem:
She failed to achieve the set goal in terms of effectiveness, and the sky survey beyond the Milky Way... that is, outside the Milky Way, almost completely failed.
Because extragalactic galaxies are much dimmer than stars, the most designed magnitude is 20.5, and the actual survey magnitude can only reach 18. As mentioned before, the magnitude is very special, the lower it is, the brighter it is.
But you have to know.
Galaxies brighter than magnitude 17.7 have been completely observed by SDSS.
In other words, most new stars discovered are at most between 17.7-18.0.
As of June 2017.
So in terms of its stated goals, it was relatively unsuccessful.
But on the other hand.
If the reputation is mixed and the reputation is mixed, what happens to the reputation?
That is to say, although most of them are stretched in the extragalactic galaxy, the effect in Hanoi has reached the top in the world.
Well, it’s not only first-rate, it’s also top-notch.
He has made extremely outstanding contributions to the research on special stars, galaxy weighing, and dark matter in the solar field.
So all the time.
Most controversies never go away.
The diss side means that the universe is so vast, and the Milky Way is just a very small corner, at most the entrance to your home.
Investing so much money without seeing it outside the home is an irrefutable failure.
Those who support it believe that we originally wanted to hunt a rabbit, but we missed the rabbit and hit a pheasant. This actually makes no difference - the Milky Way is already big enough for humans, and it would be nice to be able to study the stars in it.
OK?
Most of the Department of Astronomy at HKUST has contributed a lot, so students of the Department of Astronomy at HKUST naturally have the filter of their own family.
The topic returns to reality.
Seeing that Xu Yun did not have any sarcastic expression, Zhang Heguang just nodded:
Although most's effect on extragalactic galaxies is average, there are not many that can surpass it in the Milky Way and even internationally."
"So if nothing else happens, there will still be no new discoveries about Planet Nine in the short term."
As he said something, he suddenly thought of something and half-jokingly said to Xu Yun:
"Why don't you, Lao Xu, come to my team and help me? There are tens of millions of photos that need to be analyzed."
The "photo" mentioned by Zhang Heguang is slightly different from the photo in reality. It is an observation record composed of wave bands.
The science and technology in 2022 is different from the wheat replica in 1850. In the replica, it took all the observatories around the world to collect 30,000 observation records in one year, but in 2022, it can achieve an almost infinite level.
In 2022.
The general pattern of an astronomical telescope is as follows:
Take a lot of photos, and then first remove the cosmic rays, then reduce the background, reduce the dark current, and remove the flat field, and then you can get black and white photos of the band.
Finally, the multi-band photos are given pseudo-color and then synthesized, and then you can see the photos you see online.
So don’t forget that Hubble only transmits 120g of information every week. In fact, it is all band content, and the amount after analysis is unimaginable—it’s just that most of it is useless.
Zhang and Guang's mission is to filter moving celestial bodies through these pictures.
For example, if the interval between photos is 20 minutes, then an algorithm needs to be used to screen whether there is a planet in the photo that is displacing at a speed of xx arc seconds - because stars are stationary.
What moves is either an asteroid, a large planet inside or outside the system, a comet, or...
alien.
It’s just that the scale of the universe is too large, and comets or meteorites often appear in the solar system.
Therefore, this kind of screening work is still very difficult even with the assistance of supercomputers.
Next to the observation deck.
Hearing Zhang Heguang's words, Xu Yun was stunned again.
This chapter is not finished yet, please click on the next page to continue reading the exciting content! Then he looked at Zhang Heguang seriously for a few seconds and confirmed:
"Lao Zhang, are you kidding me? - Let me tell you, my buddy is really interested in this matter."
"Are you kidding? This is not a highly confidential research."
Zhang Heguang rolled his eyes at him and explained:
"This job is to use computer computing power to analyze images. Although our department is small, we undertake many projects, so there is not much computing power left for me."
"Can you believe it like last week when I only got 5,000 cores?"
"If you are willing to help, later...forget it's too late today, let's do it tomorrow, I will add you to the group tomorrow."
"To tell you the truth, I borrowed the computers of several of my junior students... ahem, they all volunteered to help."
"High and Low is just an analysis program. It is open source to the outside world. Just go to the Academy of Sciences website and download it - not only you who are engaged in physics, but also those who are engaged in geography can participate."
Looking at Zhang Heguang who was swearing, the expression on Xu Yun's face was still calm, but his mood was vaguely subtle.
This is...
Someone brought me Maple Blossom Love when I wanted to sleep?
To know.
Today he seemed to be leading a team to visit the observatory, but his actual purpose was to find out about the planet God.
According to Xu Yun's original plan.
If the current astronomical community's research on the ninth planet in the solar system is relatively slow, then everything must be considered in the long term.
However, if its popularity is moderate recently, you can look for opportunities to get involved.
The result was unexpected...
Due to Mike Brown's new discovery, this research direction has regained popularity, and even the University of Science and Technology has participated in it.
In this way...
Xu Yun's hidden color suddenly reached its highest level.
Therefore, in just a few seconds, Xu Yun had made up his mind.
He looked at Zhang Heguang and said seriously:
"Son, take daddy with you."
...........
Note:
I am exhausted mentally and physically. Can you please support me with some monthly tickets? I am really tired...