Great Country Academician

Chapter 131 A lively discussion in the astronomical community

After writing a thesis for two days in the dormitory, Xu Chuan wanted to attend the meeting of the Department of Astronomy on the third day, but he called Dean Qiu Chen of the Academy of Astronomy to inquire, only to find out that the meeting had been delayed for some time.

Moreover, after receiving the materials submitted by Nantah University, the Huaguo Astronomical Society took the initiative to turn this meeting from an internal meeting of the School of Astronomy and Space Science at Nantah University into a large-scale national astronomical conference. will come to the meeting.

One is to study and discuss the influence of companion stars in the hydrogen envelope of Betelgeuse on Betelgeuse, and the other is to learn the Xu-Weyl-Berry theorem to accurately calculate the parameter information of distant celestial bodies.

A calculation method that is more accurate than before is definitely worth learning for the astronomical community.

The person who invented this method is now at Nantah University. He is invited to come on stage to give a report and explanation. Everyone can listen to it. If you can understand it, talk about it, but the attitude of learning must be put on display.

As for Nantah, I would definitely be happy.

Organizing such a large-scale conference is crucial to enhancing the influence of Nantah University, whether it is for the School of Astronomy and Space Science or Nantah itself.

A week passed quickly. After writing two papers, Xu Chuan submitted the Xu-Weyl-Berry theorem to accurately calculate the parameter information of distant celestial bodies.

As for the journal to submit to, he chose neither the mathematics journal nor the astronomy journal, but the astrophysical journal "Annual Review of Astronomy and Astrophysics".

The English name of this journal is "Annual Review Of Astronomy And Astrophysics". It was founded in 1963 and is published by the publisher of Annual Reviews Inc. in the United States.

This journal has great academic influence in the astrophysical industry. It is a TOP journal, an international first-class journal, with a high degree of attention and professionalism. It requires high innovation in original articles and is difficult to pass the review.

But again, its impact factor is terribly high.

In 2016, that is, this year, its impact factor index was 34.226, which is ridiculously high.

Although the two top academic journals, "Nature" and "Science", can also have an impact factor of over 40, correspondingly, their astronomy-related sub-journals are not so exaggerated.

For example, the influence of "Nature Astronomy", a sub-journal of "Nature", is only about 10 points.

Compared with the "Annual Review of Astronomy and Astrophysics", it is a lower level.

Of course, this is also related to the wide range of papers included in "Nature", from biology to medicine, to natural materials, natural astronomy, etc., the range of papers collected is quite wide, and a variety of sub-journals have also been derived.

The Annual Review of Astronomy and Astrophysics contains only papers in astronomy and astrophysics.

In Xu Chuan's view, although the Xu-Weyl-Berry theorem's method of accurately calculating the parameter information of distant celestial bodies is derived from mathematics, its service object is not mathematics, but astrophysics.

So it is appropriate to vote for the Annual Review of Astronomy and Astrophysics.

Of course, there is no problem with submitting it to a mathematics journal, but if this paper is submitted to a mathematics journal, he will be completely crushed by mathematics in physics.

And astrophysics has something to do with physics at any rate. In order to balance it, Xu Chuan chose to submit it to the top journal of astrophysics.

Moreover, with the status of "Annual Review of Astronomy and Astrophysics" in the astrophysics community, there is no need to worry about sinking this paper.

Of course, when the paper was submitted to the "Annual Review of Astronomy and Astrophysics", Xu Chuan also dropped it on the arXiv preprint server for reference, research and communication by other scholars.

After the paper was submitted, Xu Chuan took a short break, but during his break, the paper he threw on the arXiv preprint server caused quite a stir.

As the largest, oldest and most popular preprint server in the world, arXiv has articles from many fields, such as physics, mathematics, computer science and statistics, etc., and astrophysics is naturally among them.

Whether it is a student, a professor, or a research institute or laboratory outside the academic world, perhaps the most cutting-edge knowledge in the current scientific world is necessary.

Generally speaking, there are two ways to obtain cutting-edge knowledge. One is to order journals that require knowledge.

Such as "Nature" and "Science".

But ordering these journals is not cheap. Take "Nature" as an example. It usually costs 20 yuan to read an article in Nature, which is equivalent to more than 100 yuan.

The price is not expensive, nor is it cheap. It is not a problem to buy a site license or reimburse it in most rich companies and awesome schools.

But for those individuals who are interested in scientific research or schools in those backward areas, it is very problematic.

For countries like Malawi and Central Africa, in 2016, the per capita GDP in the official data was only US$400 (read about 20 articles), how do you let others play? Should knowledge be concentrated in the hands of a few like wealth?

In addition, not only schools in these backward areas, but also schools and scientific research institutions in developed countries, with the increasing number of various scientific research literature, it is becoming more and more difficult to pay the fees incurred for subscribing to journals.

Don't say anything else, let's take Huaguo as an example.

In China, the most famous one is HowNet. Although it is not a periodical, it is even better than periodicals in terms of knowledge fees.

This is probably the pain of every college student and graduate student when writing their graduation thesis.

Nowadays, for plagiarism checking of domestic students’ graduation thesis, the characters are required to be within 60,000 characters, and the price is about 200 yuan, while the plagiarism checking system for master’s and doctoral thesis is within 200,000 characters, and the price is about 350 yuan.

This price can be said to be quite expensive.

Moreover, when a college student is writing a graduation thesis, he may check the plagiarism more than once. Sometimes, if there are too many, HowNet can search thousands of dollars from a college student once he graduates.

Not to mention master's and doctoral students and university professors.

Although paying for knowledge is a very normal thing, the fees for knowledge websites such as HowNet and academic journals are increasing day by day, which has caused many schools and scientific research institutions to be unable to keep pace with the development of academic journals.

It's as if people have always wanted the Internet to be neutral, that is, Internet service providers such as telecom operators and cable companies should treat all traffic passing through their networks equally. People also don't want money to block the dissemination of knowledge.

So the scientific community has the 'Budapest Declaration', which calls for open access to all new peer-reviewed research, across all disciplines and countries.

On this basis, preprint websites such as arXiv, BioRxiv, ChemRxiv, and The Winnower have developed rapidly and have received support from many researchers.

As the scale of these preprint websites grows larger and more and more papers and ideas are listed on them, many university professors and researchers like to browse these preprint websites.

Use it to gain new inspiration and knowledge from above, or to keep track of the progress of other people's research projects.

And these preprint websites can basically set interest or follow content tracking.

For example, in the world of physics, you can set a label for high-energy physics, particle physics, or condensed matter physics. If someone finds content related to these labels on the website, the website will push it to you as soon as possible.

No, graduate students, professors, and scientific researchers who are concerned about the astrophysics community immediately received the push from the website.

"A method to accurately calculate the parameter information of cosmic celestial bodies by using the Xu-Weyl-Berry theorem. "

The title of Xu Chuan's paper has always been simple, but this simple title has attracted the attention of most researchers who paid attention to this post.

In the scientific world, whether it is in mathematics, physics, or materials, biology, and astronomy, the emergence of computational methods is often far more difficult than the results.

In the world of astrophysics, the method of calculating the parameter information of cosmic celestial bodies has not been updated for a long time.

Whether it is the formula of universal gravitation, or the H-R diagram, photometric calculation, or the calculation of the transit time, the radial velocity method, etc., they are all things that were developed more than ten years ago or even decades ago in the last century.

These methods have been developed to the present, but there are actually quite a few flaws.

The biggest problem, of course, is that the calculated data is inaccurate.

Take Betelgeuse, one of the most popular observation targets in the astronomical world at present, so far, the definition of its mass in the astronomical community has a large deviation from ten times the mass of the sun to twenty times the mass of the sun .

Although there are reasons for the inadequacy of the observation means, the bigger problem is that the previous calculation methods can only be accurate to such a value.

Astronomers can no longer use the observed data to further calculate the data of parameter four.

Now a new approach has appeared, even if it is thrown on arXiv, a website where most of the papers and ideas are dross, it is enough to attract attention.

But when these expectant astronomers downloaded and opened the paper, they were all dumbfounded.

What is this paper about?

The calculation process in the middle is all symbols of the devil, right?

The final conclusion, are you sure it wasn't written indiscriminately?

The hobby space website forum gathers a large number of astronomy enthusiasts and astronomers here.

The paper Xu Chuan threw on arXiv has aroused heated discussions here.

[Someone read "A Method of Using the Xu-Weyl-Berry Theorem to Accurately Calculate the Parameter Information of Cosmic Objects on arXiv. "This paper? 】

[I read it, but I can't understand it at all. The mathematics in it is too profound. 】

[I seriously suspect that this is a mathematician who intentionally disgusted us. Maybe all the calculations in it are wrong, and in the end he just wrote a value on it in a decent manner. 】

[That's not true, I have read this paper, I know the author, the 18-year-old super mathematical genius who proved the Weyl-Berry conjecture in Princeton some time ago, the Xu-Weyl-Berry theorem can indeed be used to calculate celestial bodies parameters, I can guarantee this, but as you said, these calculation processes are too difficult to understand. 】

[If it is true, then we should have a more accurate calculation method in the future, but didn't he study mathematics? Why is this paper not placed under the Mathematics category? Instead, it was dropped into the astrophysical category. 】

[Maybe the object of this paper is not mathematics, but celestial bodies in the universe? 】

[But the whole paper is full of mathematical proofs and calculations. I am afraid that no one in the entire astronomical world can understand it. Wouldn't it be better to put it under the mathematical category? 】

【Who knows.】

It's cold, I'm in isolation at home...

Had two injections of vaccine, should be no big problem.

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