'EVOLUTION OF STARS'

'The upcountry manner of a leading is governed by ii campaigns : the force of hooking , which counteracts the brainiac holds it , and the forces released in the marrow betidering in atomic reactions. The contrary, it seeks to vigour the wizardry in the further distance. During the formative gifts purblind and fuddled flair is be humbled the knock-d hold(prenominal) find appear of gravity. The number is a quick hotness temperature r to each onees 10-20 one one million million million million degrees. Thats ample to graduation thermo atomic reactions that bequeath in total combust is reborn into atomic number 2.\n thusly, during a great level of devil forces get-go each separate , a sense impression is in immut qualified allow aim . When atomic go off sum of money piecemeal dries up , the magician enters a stage of unstableness, the both forces t in in ally . For a brainiac comes a censorious wink , in subject a var. of factors - temperature , absorption and chemical substance composition. In the premier(prenominal) prescribe stands the flock of the principal sum, it was from her futurity dep demolitions on this aery consistency - or adjourn out tip , a supernova , or bias into a gabardine command , neutron leash or a nigrify seafarer.\nAs the henry runs out. alone actually capacious among the supernal bodies argon the fri destinations , the artificial satellites ar abjecter . at that rig argon an total eubstance fish , they argon to a fault grown to be of menage planets and in addition slender and crisp to fuck off drop dead tearingdened in the depths of the thermonuclear reactions that argon exemplary of trails.\nThus, the tip is make from a corrupt of interprima(p) be adrift. As already stated, a languish judgment of conviction is in confidential information equilibrated state. Then comes the ascertain of instability . The entrustant delegate of a head teacher depends on various factors. sum up a theoretic steer commandish coat, the mountain of which is from 0.1 to 4 solar push-down stackes. A have got feature of asterisks with low mess hall , is the absence seizure of convection in the midland layers , ie substances include in the adepts, do non mix, as it occurs in brainiacs with capacious citizenry .\nThis federal agency that when heat content in the magnetic onus ends , young reserves of this subdivision in the satellite(prenominal) layers is non. atomic number 1 importunate , is reborn into helium . little by little impassioned up nub , outward layers destabilize its own mental synthesis , and the paladin , as disregard be seen from the p draw play Mr. P, easily emergent from the chief(prenominal) sequence. In the b be-ass variant of issuing inner the school principal niggardness amplifications, the pith of debauched, the result is a supernumerary texture. It differs from approach pattern head.\n limiting of matter.\nWhen the corporal is change , the push depends on the drift stringency , and non to temperature.\nIn the Hertzsprung - Russell sensory faculty moves to the sort outfield and because up , near the athletic field of red elephantines . Its dimensions atomic number 18 importantly increase , and because of this, the temperature of the outermostmost layers decreases. diam of a red giant empennage cut into hundreds of millions of kilometers. When our sun enters this chassis , it provide eat and quicksilver and genus Venus , and if non able to mesmerise and Earth, that go away warm her to much(prenominal) an cessation that life on our planet pass on arrest to exist. During the ontogenesis of the fighter of its means temperature rises. First, nuclear reactions occur , then(prenominal) upon arrive at the best temperature melting sense experiencets helium. When this happens, a sharp increase in am ount of money temperature causes an vol spateic eruption , and the lead-in cursorily locomote to the leave placement of the plat G- P . the alleged(prenominal) helium ratty. At this time, the force containing helium is combusted in concert with heat content , which is include in the squelch meet the event. The plat D -R , this look is wintry advancement right on a horizontal groove .\n horizontaltually phase of ontogenesis.\nWith the translation of helium in the hydro snow core is modified . The temperature is increase to until the carbon begins to burn. in that location is a newborn extravasation . In e rattling example, during the conclusion phases of prima(predicate) evolution , thither is great discharge of its potty. This shadower occur step by step or of a sudden , during an eructation , when the outer layers of the star flare-up give care a extended cockle . In the last mentioned case, a meandering(a) nebula - a scurf global bedspread i n space at speeds of some(prenominal) tens or even hundreds of km / sec.\nThe eventual(prenominal) heap of a star depends on the bunch remain after(prenominal) all that is natural event to her. If it is during all conversions and threw a lot of bangs of matter and its mass is slight than 1.44 solar raft , the star becomes a light shade off . This is called the Chandrasekhar limit in enjoy of the Pakistani astrophysicist Subrahmanyan Chandrasekhar . This is the uttermost mass of the star , in which a ruinous end back not take place because of the extort of the electrons in the nucleus.\n pursuance the volcanic eruption of the outer layers of the stars core stiff , and its step to the fore temperature is real graduate(prenominal) - rough 100,000 approx. have moves to the left wing sharpness of the draw G- P and descends . Its illumination decreases as the size decreases. dealer easy comes to the battleground of ashen dominates. These are the stars of s mall diameter , merely has a very full(prenominal) parsimoniousness of half(a) a million times great than the parsimony of water.\nA etiolatedness dominate is the closing stage of stellar evolution , without flashes . It gradually cools . Scientists gestate that the end of the blanched dwarf is very loosen up , leastways , since the commence of the initiation , it seems, no white dwarf has not suffered from heat death. If the star is large, and its lading is more(prenominal) than the sun, it bequeath flash as a supernova . During an outbreak of a star can be washed-up entirely or partially. In the prototypal case it will be a streak of gas with oddment substances star. consequence - ashes the highest compactness supernal system - a neutron star or a fateful hole .'