What is Solar Wind? What is the solar wind

The solar wind refers to the stream of charged particles of supersonic plasma ejected from the upper atmosphere of the Sun, also known as the "stellar wind".

Everyone must have studied physics in junior high school, and one of them is called "solar wind", so what exactly is it? Is it really the wind of the sun? Let me tell you about it!

01 The solar wind is a continuous, high-velocity stream of charged particles from the sun, which is not composed of molecules, but is composed of protons and electrons.

02 The density of the solar wind is very thin and insignificant compared to the density of the wind on Earth. They are usually composed of only a few dozen particles and are active in the interplanetary space near the Earth, but you don't think it is small, its wind speed is tens of thousands of times that of the Earth's wind speed, and it can reach more than 800 kilometers per second at its most violent.

03 When the solar wind erupts from the coronal hole, it quickly blows away with the sun's magnetic field trapped in it. The solar wind can blow at least the entire solar system. When the solar wind reaches the vicinity of the Earth, it interacts with the Earth's dipole magnetic field and blows the magnetic field lines of the Earth's magnetic field backwards.

The solar wind is a continuous stream of plasma that comes from the sun and moves at supersonic speeds. The solar wind is formed when a stream of atomic particles rushes out of the corona. The solar wind produces aurora when it encounters a planet's magnetic field, and it also causes the comet's tail to face out of the sun.

The solar wind is a continuous stream of plasma that comes from the sun and moves at a speed of 200-800 kms. Although this substance is different from the air on the earth in that it is not composed of gas molecules, but is composed of simpler elementary particles that are one level smaller than atoms, such as protons and electrons, the effect of their flow is very similar to that of air flow, so it is called the solar wind.

There are two types of solar wind: one that radiates out continuously, with a lower velocity and less particle content, is called the "continuous solar wind"; The other is radiated during solar activity, with a higher velocity and a higher particle content, and this solar wind is called "disturbed solar wind".

When it arrives on the Earth, it often causes large magnetic storms and strong auroras, as well as ionospheric disturbances. The existence of the solar wind provides us with the convenience of studying the sun and the relationship between the sun and the earth.

What is the solar wind, explained as follows:

Solar wind, an astronomical term, refers to a stream of charged particles from supersonic plasma ejected from the Sun's upper atmosphere. In the absence of the Sun, this stream of charged particles is also often referred to as a "stellar wind." The solar wind is a continuous stream of charged particles from the sun and moving at a speed of 200-800 kms.

Although this substance is different from the air on the earth in that it is not composed of gas molecules, but is composed of simpler elementary particles that are one level smaller than atoms, such as protons and electrons, the effect of their flow is very similar to that of air flow, so it is called the solar wind. In March 2012, the strongest solar storm in five years erupted on the morning of the 7th, affecting wireless communications.

The density of the solar wind is very thin and insignificant compared to the density of the wind on Earth. In general, in interplanetary space near the Earth, there are a few to dozens of particles per cubic centimeter, while the density of the wind on Earth is 268.7 billion molecules per cubic centimeter.

However, although the solar wind is very thin, it blows far more violently than the wind on earth. On Earth, the wind speed of a Category 12 typhoon is more than 10 meters per second, while the wind speed of the solar wind is often maintained at 350 450 kilometers per second near the Earth [1], which is tens of thousands of times the wind speed of the Earth, and can reach more than 800 kilometers per second at its most violent.