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Let’s return to the process of star formation in the halo and in the elliptical galaxy. Under the influence of «black hole» and its «accretion disk», the gas from space is sucked into the center of the galaxy, packed into a star and «thrown» into space. After some period of time, these processes are repeated. Stars, «thrown» into space are forming spheres or ellipsoids. In the center of these spheres and ellipsoids there is a «black hole» and its «accretion disk». «Discarded» stars are moving in different directions, forming an expanding sphere or an ellipsoid around the center of the galaxy. These stars, with its heliosphere, are a barrier to the penetration of gas from outer space to the center of the galaxy, into its «black hole». While getting distant from the center of the galaxy, the distance between the stars in the isophotes is increasing. Stellar wind heats the gas inside the galaxy, which is also an obstacle for the penetration of gas from outer space to the center of the galaxy. The gas located inside the galaxy continues to gather at its center, packing into stars and being ejected into space. The vacuum increases inside the galaxy depending on the parameters of the gas space, since the heliosphere of the stars and the hot gas inside the galaxy, are a barrier to the penetration of cold gas from the space. Expansion of the areas (isophot) of the stars, the increase of the vacuum inside the galaxy, and the increase in the galaxy itself, allows the penetration of gas from the space inside the galaxy. There is gas suction from the outer space into the center of the galaxy, to its «black hole». Since the galaxy is elliptical, because of the movement of stars, the borders expanding beyond the internal borders of the vacuum volume. The stars of the galaxy, moving in the vacuum borders, are no longer an obstacle for the movement of gas from the space in the center of the galaxy. With their radiation, they can heat the cold gas from outer space, pre-preparing it for packaging into a star. In outer space, around the vacuum inside the galaxy a formation of «outer cyclone» takes place. This «cosmic cyclone» can be viewed as an «accretion disk» around the volume of the vacuum contained within the galaxy. The motion of the gas and the dynamic processes inside the «outer cyclone» lead to birth of stars inside the gas stream, which have formed a disc and sleeves of the galaxy. Since the volume of an elliptical galaxy is wider than its internal vacuum volume, therefore, the formation of lens and spiral galaxies occurs inside the elliptical galaxy.

Illustration № R-10.6 is a diagram of an elliptical galaxy. In the center of the galaxy we have the «black hole» and the «accretion disk». They suck gas, pack it in the stars and «throw» the stars into the outer space. A volume of vacuum is created around the «black hole» and its «accretion disk» – an «interior» (vacuum) volume of the galaxy. «Internal» volume passes into the «external» volume of the galaxy. The gas moves more freely there, its pressure is higher than in the «internal vacuum» volume.  

 – Perhaps the increase the size of the «black hole» and its «accretion disk» also has an impact on the parameters and the formation of the disc and sleeves in the galaxy.
How does happens the suction of gas, we don’t know. Perhaps it’s not fixed and occurs not on a constant speed, as the saturation of the «accretion disk» around a black hole, the suction process may be slow down, and possibly accelerating, which could lead to a synthesis. But even if a decrease in suction power takes place, the gas from outer space continues to move on inertia. Perhaps this movement the electromagnetic field of the «accretion disk» and the galaxy disk must be considered as well. Because when the parameters of the field self-induction currents are being created, they are aimed at maintaining the parameters of the field. The change of the speed and the saturation of «accretion disk» lead to a change in the electric field. Consequently, inside the gas flow of the «accretion disk» and inside the galaxy disk there are processes that must begin. These processes are aimed at maintaining the movement of the «accretion disk» and the galaxy disk. But this is only a hypothesis, which must be checked.
When the «black hole» and its «accretion disk» are saturated with gas, there is a nuclear explosion, or a series of explosions, during which stars are born and released from the center of the galaxy. During this time, the process of gas suction in the center of the galaxy stops, but the movement of gas to the center, in the galactic disk, and outer space surrounding the galaxy continues by inertia. This movement of gas runs into a powerful dynamic shock wave, born from the explosion in the center of the galaxy and sealing the gas may occur in the disk and sleeves of the galaxy. This is probably the reason for the birth of stars in the disk and sleeves of galaxies. Perhaps the formation of stars occurs in the motion of gas flows. The cause of star formation in the flow of gas and the galactic disks is still unknown, but the facts is that there is star formation in the bulk, where the «black hole» is placed, and in the gas streams of the disks and sleeves of the galaxy. Consequently, we can conclude: The stars are formed in two ways, as a result of dynamic processes in the space around the «black hole» and in the dense gas flows of space.
To simulate the processes taking place in galaxies, it is necessary to bear in mind that the cause of all of the processes that takes place in it, is the existence of a black hole in its center. The events that take place inside and with the «black hole» are the cause of the evolution of galaxies. That means, the lens and spiral galaxies are spinning from the center, where the «black hole» and its «accretion disk» are placed.
Perhaps, if to connect the stars of the same ages, isophotes in the disk and the sleeves of the spiral galaxies, it is possible to trace the changes and evolution of the galaxy itself and its disc and sleeves, over the life period of the galaxy.
We have analyzed three types of galaxies – elliptical, lens and spiral.
There is one form that left unexplained – the wrong galaxy.

– Irregular galaxies     

Irregular galaxies have a matted form and contain up to 50% of the gas from the mass of the galaxy. The formation of such galaxies should be considered in each case individually, because each irregular galaxy has its own history and characteristics of formation. 

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