What is the star life cycle?
The star begins as a cloud of interstellar gas, mostly made of hydrogen. Finally, small density differentials begin to create gravitational wells, attract other particles closer and condense them. Over time, this compaction process creates a spherical -shaped central cloud, orbiting gas on the edges and creates what is called an acrevní disk.
A critical step in the birth of a star is to create density levels sufficient to start hydrogen fusion. The merger combines atomic cores lighter than in iron and releases energy in this process. The first atoms that fuse in a condensed star-cloud are probably atoms deutria, isotope of hydrogen with one neutron. Despite their lack of conventional hydrogen, they require lower temperature and pressure to insurance, and therefore would probably start first. Fusing atomic cores is difficult to achieve because of electrostatic resistance caused by electron shells Boatoma.
after deutrium in a star cloud is lit and behindIt is only a matter of time to release the amazing amount of energy, until the surrounding hydrogen begins to join and the heavenly body becomes a real star. With a core of several tens of millions of degrees or higher, infant stars are often the best bodies for bright years around.
The vast majority of the atoms from which our bodies are made was synthesized by the fusion of atomic cores in a process called star nucleosynthesis. Most atoms except hydrogen are created in this way.
Another future and the life of the star depends on its matter. Most stars spend most of their lives on what is called the main sequence, and combines light cores in energy reactions. When they begin to join all their hydrogen, the stars begin to lose energy. For stars about 0.4 times the weight of our sun or below, it causes gravitational collapse. The star turns into a homogeneous red dwarf and will never combine elements again.
For stars 0.4 times the weight of our sun up to about ten times Helium begins to aggregate at the core of the star as the fusion process continues. Helium doesn't move easily, so it just hangs. Its greater density causes hydrogen to be very strongly pushed into the layers above it, accelerates the fusion of the remaining hydrogen and the star is 1,000 to 10,000 times brighter. This produces a red giant, with a radius of a similar distance in which the ground orbits the sun. After the red giant spent his fuel, he collapses forcibly. The shear force that faces is released by a huge amount of energy and causes supernova explosion. Supernovs are some of the most energetic phenomena in space, which is a suitable end to the majestic life of the star.