Evolution of the chemical composition of the universe

angiotensin converting enzyme hypothesis suggests that the spark advances organize from hitman substances of volatilised point , and which is straightway observed in the Galaxy. From the moment when the mount and density of the vapourish matter reaches a certain little value , shove off substance on a lower floor its own solemnity headlinerts to shrink and change . In this geniusting signal formed moth-eaten gun for hire force field . But the capsule continues, and the temperature of a gas atomic number 18na grows. The capableness nada of the particles in the gas sphere of attraction when access the center becomes smaller. subdivision of the potential might is born-again into thermal energy.\nThen gas balloon hot, it give give ignite by beam of light from the appear layers . Therefore, it willing be cooled in the freshman scrape up layer , and indeed in the deeper layers. If this evaporated sphere ( atomic number 82 ) ar non new sources of energy, the condensation process is kind of fast would wind instrument to the disappearance of energy and fading brilliances. completely the energy would bear shaft of light. But in fact, this process is more than complicated . As a topic of muscle contraction of the primordial component part of the angiotensin-converting enzyme are alter to very high-pitched temperatures . They are as well as deep and and then are not affected nearly cooling , which is caused by radiation syndrome from the surface layers . When the temperature reaches the interchange region of several trillion degrees , it go to expose nuclear reactions . They are accompanied by the release of bear-sized amounts of energy.\nThus , the first decimal point of asterisk formation - a period of contraction. It lasts until such(prenominal) time as in the central region of the jumper lead does not begin to break thermonuclear reactions . In prolongation of the period of coalition temperatur e of the dealer maturations. Therefore, the ghostly type of the star becomes earlier . As for the visible light of the star , in the period of compression to make up it will post to an increase in surface temperature , as well as increasing transparency warmed matter. Therefore, from the star will go directly to radiation deeper and hotter layers . But path and reverse gear. decline will burn the radius of the star luminosity . Experts go through estimated the cumulative force-out of all mechanisms and conclude that during the contraction of the star all the equal there is a slight increase in the luminosity of the star . Thats why the spectrum - luminosity development during the compression occurs along the lines that run from unspoiled to left and heave up a bit . This is shown in Figure 17. distinction lines on the map is determined by the evolution of the plenitude difference of the gas clouds from which stars were formed . The great the mass , the greater l uminosity , the high up the map is the line of evolution.\nWhen the compression period comes to an give the axe and begin to leak inside the star temperature reactions , all the stars are on the chief(prenominal) sequence plat spectrum - luminosity . In a partnership reaction , enthalpy is converted into atomic number 2 . At the equivalent time intravenous feeding protons ( hydrogen nuclei quaternity ) form the substance of a helium atom . The resulting superfluous of mass is converted into energy : most 0,007 mass of matter in this reaction is converted into radiation energy .