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The Milky Way, the barred spiral galaxy that carries life on Earth, is dotted with 400 billion stars, a large number of nebulae, star clusters, various interstellar gases, and interstellar dust in the vast Milky WayLooking at the Milky Way from the earth, it is like a silver-white river in the sky, so ancient people used the Milky Way as the background to compile a lot of poignant and touching love stories, and the well-known "Cowherd and Weaver Girl" is one of them. In the Milky Way, there is a massive black hole and many aging stars, surrounded by new and relatively young stars, such as the solar system.
In recent years, as scientists continue to explore, it has been found that the Milky Way has always been expanding and growing, and it has grown by 50% compared to when scientists first began to observe it. There are many bright spots in the Milky Way that we can't detect with the naked eye, even through astronomical telescopes, these bright spots are two blurred spots in the eyes of scientists, and in the Milky Way, a blurred spot passes through the center of the Milky Way, what is this?
According to scientists, the so-called Milky Way Center Bright Spot is the dust belt in the Milky Way. It is not because of the location of the earth that we cannot see the bright spots of the Milky Way with the naked eye, this is because the solar system has a very serious shielding effect on the Milky Way, so even if we observe the Milky Way with an astronomical telescope, it is difficult to see the bright spots in the central region of the Milky Way. Therefore, when they first started to study the Milky Way, many scientists thought that there was a sun at the center of the Milky Way, but with the progress of science and technology, through computer simulation and modeling, they really figured out what it was.
Scientists have discovered that the core of the Milky Way is a star cluster, and through the probe's return of the forehead**, we see that the center of the Milky Way is composed of many stars, and the solar system is almost 260 million light-years away from the center of the Milky Way. According to data analysis, the core of the Milky Way is an oval shape, accounting for about 20% of the total mass of the entire Milky Way, and many stars are revolving around it.
And in the very center of this cluster, there is also a celestial body obscured by the dust belt, according to the analysis of scientists, this celestial body is likely to be a supermassive black hole, and when it swallows matter, it caused a large number of X-ray bursts, so it will be detected by the X-ray band of the detector, but some scientists believe that the central object may also be a neutron star or a white dwarf, because they themselves have a lot of radiation, but compared to the X-ray intensity detected so far, There is still a big difference.
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There is no exact conclusion yet, and further research is needed.
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At the moment, people have not received the right information, and all kinds of people are just speculating.
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The closest celestial body to Earth is Mars, which is our neighbor and has many similarities to Mars. A mysterious bright spot has appeared at the center of the Milky Way, and the scientific community is arguing.
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There is still no specific explanation of what those bright spots are.
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This one is unknown, this one still needs to be studied by scientists, and the mysteries of the universe are endless.
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It is still uncertain, the scientific community has been debating, there is no conclusive conclusion, leave it to time to prove.
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We don't know about this, so the scientific community is still debating it.
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That mysterious speck at the center of the Milky Way is just a special planet.
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The reason why the center of the Milky Way is bright: because there are many stars in the center of the Milky Way. According to scientists' estimates, about 90% of the stars are concentrated in the center of the Milky Way, about 200,000 light-years away.
In the solar system, one sun is enough to illuminate the entire galaxy, and when millions, tens of millions, or even hundreds of millions of star systems are gathered at the center of the Milky Way, the brightness of the center of the Milky Way is very high.
There are about 42 million stars in light-years around the center of the Milky Way, which is 72 million times more dense than stars near the solar system. With so many stars clustered around the Milky Way, it naturally makes it appear very bright.
The origin of the nuclear sphere at the center of the Milky Way:
1. One theory is that at the same time as the formation of the Milky Way 13 billion years ago, the structure of the nuclear sphere was also created, so the existing nuclear sphere should all be old stars with similar motion.
2. Another theory is that the nuclear sphere did not appear at the same time as the Milky Way, but only after the latter produced the first generation of stars in the process of slow evolution. According to the second theory, it is speculated that there may also be relatively young stars in the nucleus now, and there is a difference in the motion of the old stars.
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Black hole. When a black hole devours material near it, it emits energy in the form of light, and the presence of the black hole is detected by detecting this light energy. The centers of nascent galaxies and quasars are usually extremely bright, and it is the black hole at the center that is devouring the surrounding matter, emitting a lot of energy.
By chance, an asteroid approaches the black hole, which pulls it over and tears it to pieces, so that these bright flares can be seen.
As the black hole gets older, the engulfing rate slows down, "eating" less and becoming darker. "We're looking at what happens to black holes when they get old. Joy Nelson, a postdoctoral fellow at the MIT Covli Institute for Astrophysics and Space Research, said, "Black holes are not like young quasars, but they are still active.
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Mankind's understanding of the universe is a gradual process. Gradually, they recognized the Milky Way and discovered a very bright region in its center. The center of the Milky Way is bright because the stars there are dense, and the huge number of stars will surely shine brightly together.
Thanks to advanced observation techniques, we have been able to clearly see what the stars of the Milky Way look like. Its shape looks like an oval disc, and its central area is very bright. At first, scientists thought it was strange.
They tried to observe the Milky Way in different bands and found that the different bands did not affect its brightness, and the central region was still bright.
1. Scientists are exploring the cause of luminescence in the central region of the Milky WayIt is found that the distribution of stars in the Milky Way region is uneven, and their density has a lot to do with the distance from the center of the star. The density of stars near the center of the Milky Way is relatively high. The brightness of the center of the Milky Way can be observed because of the dense distribution of stars in that region.
Human beings used to believe that the earth was the center of the universe, and the sun, moon, and stars all revolved around the earth. Later, mankind gradually discovered that the Earth is just a planet that revolves around the sun.
Second, scientists further found that the center of the Milky Way is too dense with starsAs a result, it is very difficult for life to exist there. Because of all kinds of harmful radiation, it is difficult to sustain life. Scientists have also discovered that there is a special celestial body at the center of the Milky Way, and its name is Sagittarius A.
Later, mankind discovered that the sun is just an ordinary star in the universe, and together with hundreds of billions of stars, it forms a huge galaxy called the Milky Way.
3. Sagittarius A has a strong gravitational pull, but it is relatively small. Scientists compared it with other celestial bodies and concluded that it was most likely a black hole. Subsequent scientists continued to observe it and found that some of its features were indeed consistent with black holes.
The black hole devours the surrounding stars, which radiate outward after being swallowed. The reason why the center of the Milky Way can be seen sparkling is most likely because these stars are being swallowed by black holes. This speculation has been recognized by many scientists and is a relatively reliable conclusion.
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Because there are many stars in the center of the Milky Way, the density of stars is very large, so we will be very bright when we see it from a distance.
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There are many stars in the center of the Milky Way, and they are denser, which is why they look so bright.
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I think there may be stars, because stars emit light, and the luminous area of stars is quite large.
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The brightest part of the center of the Milky Way is not a star, because the disk of the Milky Way is at least 100,000 light-years in diameter, and the brightest part is obviously light-year, much larger than a star with a diameter of at most a few billion kilometers (about one or two light-hours). In fact, there are very dense stars in the galactic center, and they appear very bright when they come together.
In the Milky Way, the closer you are to the galactic center, the higher the density of stars; And the closer to the edge of the silver disk, the lower the stellar density. The solar system is about 10,000 light-years away from the galactic center, and there are only about 10,000 stars on average in each cubic light-year of space near the Sun (equivalent to a sidereal cubic parsec). In globular clusters with a higher stellar density, their star density is about 2 cubic light-years, which is equivalent to 500 times the vicinity of the Sun.
And within the light-year space around the galactic center, there are up to 42 million stars, which means that the star density there is as high as 10,000 cubic light-years, which is equivalent to 72 million times that near the Sun.
Due to the large number of stars gathered near the galactic center, it appears very bright. There, on average, there is a star every 1,000 astronomical units (equivalent to 6 light days). If the Earth were near the galactic center, we would see a million stars brighter than Sirius, and the entire night sky would be about 200 times brighter than it would be at the time of the Full Moon.
However, due to the large amount of interstellar dust, we cannot see the bright silver heart on Earth. But infrared rays with longer wavelengths are more likely to pass through interstellar dust, so in the ** of the infrared band, the silver core appears very bright.
In addition, there is a supermassive black hole with a mass equivalent to 4.3 million suns, Sagittarius A*, in the deepest part of the galactic center, and some stars orbit it because of the gravitational constraints of this black hole.
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At the center of the Milky Way is the Silver Heart. The galactic center is the intersection of the Milky Way's axis of rotation and the galactic plane, the center of the galactic core, and the center of the Milky Way. The Silver Heart is located in the direction of Sagittarius.
This region is mainly made up of a large number of stars. The mass of the silver core is about 4 million times the mass of the sun. Some people think that the galactic core region is a massive dense nucleus, perhaps a massive black hole.
By the way, a word about the silver core. The silver core is a slightly convex part of the Milky Way**. It is a very bright spherical body, about 20,000 light-years in diameter and 10,000 light-years thick.
This region is made up of a high density of stars and interstellar matter, the main of which are old red stars that are about 10 billion years old. The activity of the silver core is very intense.
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The center of the Milky Way is the galactic center, and the center of the Milky Way is the black hole, and there are at least two or more, a large and a small one, and there are many supergiant stars in the vicinity of the black hole, which are the brightest stars that make us see not a black hole from the naked eye, but a cluster of light. German astronomers confirmed the number of black holes in 2008, so that the stars next to the black holes can continue to orbit, albeit chaotically (still caused by black holes).
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The radio telescope found that there is a strong radio source at the center of the Milky Way, which is named Sagittarius A. The center of this radio source is particularly small, and the maximum is no larger than Jupiter's orbit around the Sun. It has been suggested that if the radius of the central nucleus of the Milky Way is no larger than a parsec, i.e., no more than light-years, it means that it is likely to be the center of a massive compact object, most likely a black hole.
If the radius of the central nucleus is a parsec, that is, about 2 light-years, then if it is not a black hole, it would be a very massive mass of matter, containing the mass of 2 million suns. Based on the observations of astronomical satellites in 1987 and 1988, Japanese scientists believe that there was a massive celestial body or a large number of supernovae in the galactic center.
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At the center of the Milky Way is a massive supermassive black hole, which is why it looks like it's shining. We all know that the Milky Way galaxy can be described as the wave bay and home that human beings rely on for survival. Since the birth of the Milky Way, it has a history of at least 9 billion years, and human civilization and even the earth, of course, are just a small drop in the ocean.
According to model data provided by NASA in 2015, there are at least 50 extraterrestrial civilizations in the Milky Way. Moreover, two-thirds of them, the level of science and technology may far crush human beings: these "neighbors" around us also show that human beings are not isolated islands of civilization in the universe.
The diameter of the Milky Way is about 100,000 light-years, so it can be called vast and immense. However, from the outside, the center of the Milky Way galaxy has a huge source of light; Moreover, as you may know, the Earth revolves around the Sun, and the Solar System is part of an infinite number of small galaxies that revolve around the Milky Way.
And the Milky Way itself is revolving with this "light source" as the core. What is it sacred? In the twentieth century, Wayne, a professor in the Department of Astronomy at Columbia University in the United States, found the answer by interfering with the Hubble telescope with a large laser: this is a black hole.
That's right, it's this black hole that emits a lot of light outward; Doesn't that sound like a bit of a "fantasy"? And, to date, it is one of the largest and most massive supermassive "Kerr black holes" we have observed, with angular momentum expanding to an almost immeasurable degree.
In the black hole theory constructed by Mr. Stephen Hawking, a black hole converts engulfed matter into a radiant energy, which is then emitted around the accretion disk; Therefore, this black hole looks like a "light bulb", illuminating every corner of the Milky Way.
It has been named the "galactic black hole" and has been observed to be at least four million times more massive than the Sun.
It is possible that some stars gathered together, and this one is worth exploring.
This is the orbit of the star at the center of the Milky Way, and the red color is the gas cloud, and the observations of the past two years show that the gas cloud is rotating around a point. By working with these persistent orbits to calculate the position of the central black hole, which is not a black hole, it is a huge object with an invisible mass, and the mass of the central black hole can be deduced from the mass of about 4 million suns based on the radius, velocity, and mass of the star around which it orbits. So it's basically determined that the center of the Milky Way is a supermassive black hole. >>>More
Astronomers recently observed a huge black hole at the center of the Milky Way, which is estimated to be the second largest black hole in the Milky Way. The findings have been published in the latest issue of the journal Astronomy and Astrophysics. >>>More
What is the secret of the giant black hole at the center of the Milky Way?
At the center of the Milky Way is the Silver Heart. The galactic center is the intersection of the Milky Way's axis of rotation and the galactic plane, the center of the galactic core, and the center of the Milky Way. The Silver Heart is located in the direction of Sagittarius. >>>More