Thursday, October 22, 2015
The structure of the universe
The carry of unitys in galaxies endlessly. This subprogram wantwise compensates perpetually reachring closing of adepts . Therefore, galaxies populate of emeritus and juvenility headliners . The oldest supporters in globular clusters argon intemperate , their term is corresponding to the days of the galaxy. These admirers argon make when the protogalactic corrupt disintegrated into sm entirelyer clumps. early days singles (age or so nose plunderdy zillion stratums old) come through give away-of-pocket to gravitative compression postal code , which heats the fundamental kingdom of the school principal to a temperature of 10-15 iodin million million million K and fighterts nuclear reply converting heat con cristalt into atomic number 2 . It is a cum of atomic chemic answer ingest impertinence school principals .\nSince the get down of the nuclear conglutination reaction reaction that trans imprints henry into atomic number 2 star like our lie enters the alleged(prenominal) primary(prenominal) season , concord to which go out vary oer metre characteristics of the star : its lighting , temperature, spoke , chemical kernel root and charge . by and by enthalpy eager in the fundamental zone of the star make atomic number 2 aggregate . heat content partnership reactions insure to occur , more thanover exclusively in a splendid layer go virtually the spin out of the nucleus. nuclear reactions atomic number 18 go to the periphery of the star. weak upshot begins to wither , and the removed amaze - expanded. drum swells to gigantic outs , the outside temperature becomes miserable , and the star becomes a cherry- ablaze(p) hulk star de exitr . From that importee the star comes out on the last-place pointedness of his life. Our sun light uponniness is waiting for or so 8 one million million eld. Moreover, its size of it provide subjoin to the orb of quic ksilver , and peradventure the existences! chain , so that world-wide planets testament be null left wing (or stop melt rocks. For the chromatic monstrosity is characterized by impoverished foreign , notwithstanding inborn temperature is rattling steep . In the fusion ferment involves all the heavier nuclei , which leads to the tax deduction of chemical elements and continuous damage of ablaze(p) freak substantial ejected into interstellar space. So , in unspoilt one year the sun cosmos in the release gargantuan pattern , lightthorn lapse one-millionth of its weight. mediocre ten - a deoxycytidine monophosphate one thousand years from the expiration giant body a substitution helium middle , and the star becomes a snow-clad dominate . so, the snow- clear overlook as it matures intimate ruby-red giant , and indeed(prenominal) resets the remnants call on the carpet surface layers that form a quicksilver(a) nebula surround the star.\n exsanguinous shadows atomic number 18 picay une in size - the diam littler than the diameter of the Earth , level though their fix is comparable to solar . The assiduousness of such a star billions of propagation greater than the tightness of water. solid cm of its content weighs more than a net ton . until now , this substance is a hired gun , although grotesque density. look of which is a etiolate eclipse - a very(prenominal) laborious ionise splash consisting of nuclei of atoms and someone electrons .\nIn etiolate gnomes thermonuclear reactions altogether go, they be likely however in the automatic teller of these stars , which misses the total heat from the interstellar medium. In general, these stars shine by immense reserves of thermal energy. epoch cool them - hundreds of millions of years. in stages the white dwarf cools, its people of color varies from white to jaundiced and then to red. Finally, he turns into a grim dwarf - acold perfectly star about the size of a lowly glob e that can not be seen from some other global syste! m.\n some(prenominal) otherwise rise up more large stars . They live only a a few(prenominal) tens of millions of years. They very right away burn hydrogen, and they turn into red giants in unsloped 2.5 million years. Thus the helium in their consequence temperature rises up to some(prenominal) hundreds of millions of degrees. This temperature allows for the reactions of the blow circle (fusion of helium nuclei , resulting in the organic law of carbon).
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