What role does star formation play in the evolution of galaxies in the Milky Way?

During star formation, it not only attracts dust and gas, but also releases a shock wave of energy, which transports other nearby matter into the galaxy, thus promoting the formation and growth of the entire galaxy.

Every galaxy has never stopped evolving since it was formed, and the formation of stars is also driving the change of galaxies, so stars have the most important position in the Milky Way, although they are the most basic.

In fact, we can understand it this way, the Milky Way is a house, and the stars are the foundation of this house and the structure of the house. When there is any change in the stars, then the Milky Way will also change with the change of stars, and it can be said that stars play a vital role in the evolution of the Milky Way.

The star is the simplest and most important part of the Milky Way, just like the central magnet in the magnetic field, when it moves, the entire magnetic field will change, and the star moves, then the whole galaxy will change with its motion.

When every galaxy is formed, it evolves slowly, and when the galaxy is formed, it also evolves continuously, in fact, the star promotes the evolution of the galaxy when it is formed. Therefore, stars are actually unchanging, and they play an important role in the whole process.

The evolution of stars is mainly divided into four periods, namely juvenile, prime, recession and death. Stars are actually macroclouds at the beginning, and in the initial stage, they are obscured by dense nebulae gas and dust, which are difficult to observe, and are called Bock spheroids. After that, the central temperature of the spherical object will be particularly high, allowing the star to begin to emit light on its own, reaching a static equilibrium.

Over time, the stars enter the middle age of the stars, forming red giants and supergiants. In recessions, stars die and may become neutron stars or black holes.

During the red giant phase, the matter inside the planet no longer undergoes thermonuclear reactions, but because the pressure on the core of the outer shell increases, it will cause other shape changes. Physics connects the internal motion of stars and the production of energy, and a change in one factor causes a change in the whole. The gas is in motion, and this movement continues under the influence of gravity, and the first stars are formed.

In the middle stage, there will be a nuclear reaction inside, and after one reaction will be completed, another reaction will begin, until all the fuel is exhausted. In the final fateful stage, perseverance still collapses or erupts under the influence of gravity, which may cause some to become nebula gas, and another part to become various other celestial objects, such as white dwarfs.

The material of most stars is gaseous, and the effect of heat conduction is not very large, so the interior is very hot. In the final stage of evolution, a small feather can cause a change in gravity, shrink stars, and cause giant molecular clouds to collide constantly. At this time, it is possible to start a non-stop explosion, causing some high-speed material to be thrown out of the star.

After that, the megamolecular cloud fragments will be broken down into smaller pieces and will drift through the universe. So the life of a star actually has a program, it seems to be very short, and the evolution time is very long, much more than the lifespan of humans.

Massive stars undergo several great changes in the process of collapsing, which is what we call a supernova explosion.

Planets are born in nebulae, and cosmic dust attracts each other under the action of gravity, gathers, and the heat generated by extrusion gradually accumulates, and finally ignites the gathered matter, and the glorious life of the star is born.

1.The first stage is the birth of stars (juvenile years);

2.The second stage is the Lunar Week (the prime of life), in which most of the stars in the universe are located; When a star becomes a red giant, it enters the third stage;

3.Eventually, the star enters an explosive phase, slowly collapsing and dying out.

It is divided into 4 periods. These 4 periods are the main sequence phase, the star phase, the red giant phase, and the white dwarf phase.

The hydrogen inside the star is depleted, and the outer shell without the support of nuclear fusion is squeezed inward under the strong gravitational force, and the helium produced by nuclear fusion is accumulating, and the helium gathered together finally fuses, and the decrease in temperature makes the star color red, and the energy of helium fusion extrapolates the outer layer of the star to form a red (super)giant.

There are many galaxies in the universe, but the Milky Way is specifically the galaxy in which we are located, so there is only one. There may be many galaxies in the universe that are similar to the Milky Way, but there can be no galaxy that is exactly the same as the Milky Way. Even if there were, it wouldn't be called the Milky Way, because the Milky Way is just the name that humans have given themselves to the galaxy in which they live.

The formation of the Milky Way In the universe, a galaxy with a galactic nucleus will engulf each other if it catches up with another galaxy with a galactic nucleus, and if the two have similar velocities, they will swallow each other and form a more galaxies. If the nuclei of these two galaxies meet, they will orbit each other to form a more massive rotating nucleus.

There are at least 100 billion galaxies in the universe, indicating that Hexi is very large, and there are many galaxies. It will be affected by the environment, it will be affected by temperature factors, it will be affected by mass factors, it will also be affected by parallel universes, and it will also be affected by black holes.

In the universe, there is only one Milky Way, but there are trillions of galaxies like the Milky Way. The formation of a river system in the universe speeds up a galaxy with a galactic nucleus, and when it catches up with another galaxy with a galactic nucleus, if the two are moving at a similar speed, they will engulf each other, forming a more galaxy. If the nuclei of these two galaxies meet, they will orbit each other to form a more massive rotating nucleus.

There are countless such galaxies in the universe, and the formation of the Milky Way is related to gravity, and the reasons for its formation are relatively complex.

A system of about 200 billion stars.

According to the data, the Milky Way has a mass of about one trillion solar masses, and there are about 200 billion star systems in the Milky Way, and the Sun is only an insignificant star among them. With a diameter of about 200,000 light-years and hundreds of millions of star systems, the Sun is one of the intermediate-mass yellow dwarfs, which were formed about 4.5 billion years ago and have an estimated lifespan of about 5.5 billion years, and then further evolved into red giants and finally white dwarfs. <>

The stars of the Milky Way are in an inhomogeneous state, oblate spherical in shape, and are composed of four cantilevers, the Sun is located on the cantilever of Orion, about 10,000 light-years away from the galactic center, which is a huge black hole equivalent to 4 million times the mass of the sun. The sun is located in the Milky Way, and it is impossible to see the whole picture of the Milky Way, and at night when there is no light pollution, the Milky Way can be seen in the night sky alternating between light and dark, which is the cross-section of the Milky Way. <>

In the Northern Hemisphere, there are about 3,000 stars visible throughout the year, the farthest is about 7,000 light years, and the seamount is about 7,500 light years above the ground. Most of the stars in the Milky Way are either low brightness or too far away to be seen by the naked eye, and only through telescopes can we see stars that we cannot see with the naked eye; For example, the absolute magnitude of the Sun is only a single magnitude, and it is almost impossible to see with the naked eye at a distance of about 60 light-years.

In 2019, scientists used Hubble's data to make a preliminary estimate of the mass of the Milky Way, speculating that the mass of the Milky Way is about a trillion solar masses, and there are about 200 billion stars, which are allocated to the whole world, and there are about 30 per person. In a system of about 200 billion stars, and their complex forms operate, some independently form a single star system, such as the Sun; Some form a binary star system, such as the Polaris, Daling V and other binary star systems; There are also star concentrating systems, such as the constellation Centauri, which has seven stars.

There are about 200 billion stars in the Milky Way, some of which form independent single-star systems, some binary star systems, and some cluster-star systems.

Although there is only one star in the solar system, there are hundreds of billions of galaxies in the Milky Way. According to scientists' calculations, the mass of the Milky Way is about a trillion times that of the solar system, and there are hundreds of billions of star systems.

According to the existing model, there are about 200 billion stars in the Milky Way. These stars, along with their planetary systems, and nebulae that permeate space, form a disk-like structure with a diameter of 10 to 200,000 light-years and a thickness of about 2,000 light-years.