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The shooting of the orange dwarf, 370 light years from Earth, immediately swept the world. This star is called PDS 70. The presence of a body – a planet on its orbit, scientists have been waiting for a while. His new partner called PDS 70b. Even though mankind was quite familiar with the formation of new planets, his observation showed that such a process is much more complicated
We know that the formation of a new planet is essential for the presence of dust, stones and gas. In the creation of the planet, all these substances are precipitated in one place. In fact, it is quite difficult to see this process. But when these substances collide, their result becomes more and more intense. The formation that dust, stones and gases create becomes stronger and gravity increases. In the orbit, this formation collects the material until it finally becomes a planet
The astronomer was able to capture these protoplanetary disks – that is, the particles that surround the object in formation – and find that the object, which they observe, has the parameters of the planet. However, it turned out that capturing the whole process is not the simplest task. Most exoplanets are too far away to capture them with an optical telescope. Another problem is that they are difficult to recognize because most of their light is absorbed by their star. It's the same reason we do not see in the sky during the day.
The presence of protoplanetary disks around a young star does not necessarily mean the birth of a new planet. Scientists have picked up several candidates for which they could succeed. The star of the PDS 70, however, had very good prerequisites for creating a new planet, since his record was literally huge. He has reached the average of 130 astronomical units. For a better idea, the distance between the Earth and the Sun is 1 astronomical unit
Like an orange dwarf, which is really huge, but does not produce much light, it was a perfect object observation by a coronograph, a device that can block the intrusion of light from surrounding stars in the lens. The mark of the coronagraph is a black dot in the middle of an orange group of particles that you can see on the image. In this way, the scientist was able to discover a voluminous object in the protoplanetary disk PDS 70, a large object that was the new planet PDS 70b
The planet PDS 70b is several times larger that Jupiter and its orbit reaches 22 astronomical units. This means that when he finishes one of his circuits, it takes 120 Earth years. The temperature on the surface of the planet is about 926 ° C, which indicates that it will not be able to accommodate life. You will hardly find the warm planet in our solar system, as Venus is the highest temperature in our country and is 463 ° C.
Although it is not a living planet, which is the main purpose of discovering the exoplanets, she is always the first to observe the "rodent" of the planet. It is therefore a very significant astronomical discovery, which will certainly be recorded in history.
See also: Science fiction will become a reality. NASA comes with a novelty, wants to create sleep cryoconsors for astronauts
sciencealert.com
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