Two years ago, astronomers with the help of the SOLAR Orbiter spacecraft found tiny jets near the southern pole of the sun, which could launch a solar wind. Now scientists used even more data of this apparatus and confirmed that these jets exist in all dark spots in the atmosphere of the Sun and they are indeed a source of not only fast, but also slow solar wind. The study is published in the journal Astronomy \u0026 Astrophysics, writes Phys.

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The solar wind is the endless stream of electrically charged particles, which are plasma made of hydrogen and helium. The solar wind, which constantly releases the sun, permeates the entire solar system and its effect can be felt on Earth. But, despite decades of research, its origin remained poorly studied. Still.

Solar wind is fast and slow. It has long been known that the fast sunny wind comes out of dark spots in the atmosphere of the sun known as coronal holes. In these holes, the line of the magnetic field of the Sun does not return back to our star, but stretch far into the solar system. Charged particles can flow along these magnetic field lines and create a solar wind. But it was not clear to the end exactly how exactly the particles initially fly out of the sun.

Astronomers used all the available data of the SOLAR Orbiter spacecraft and found more tiny jets inside the coronal holes near the equator of the sun. These jets can be seen in the video in the form of bundles similar to the hair that occurs for a short time and throw out charged particles at a speed of about 100 km/s.

During a thorough analysis of a large volume of data about the sun wind and the magnetic field of the Sun, astronomers were able to directly connect the sun wind with these jets directly. Scientists were surprised when they found that tiny jets are a source of not only fast, but also slow solar wind. At least the study shows that part of the slow solar wind also comes from tiny jets in coronal holes.

The fact that the same process controls both fast and slow solar winds, was a surprise to astronomers. Now astronomers intend to get even more data to better understand how these tiny jets launch a sun wind.

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