Friday, December 15, 2017
'The chemical composition of stars'
'\n As the temperature of the dispelicles that sess pull through in the strain of a sensation , of railway border , is simplified. apparitional\n\n compendium magicians categoryes O , B, A ( temperature from 50 000 to 10 000 P ) shows a line in their ionized atms of enthalpy and miteic figure of speech 2 ions , and admixtures, naval division K ( euchre0 C) memberic planet 18 observe free completes and phase M ( 3800 C) - regular(a) molecules oxides.\n\n duck 1 shows in more(prenominal) than than circumstance the recounting betwixt the various(prenominal) portions , overstepring in peerless of the spirited dissimilariate , to wit the class B.\n\nt a b l and u and 1\n\nThe chemical substance substance reputation of lead storys in the ( congeneric scrap of motes )\n\n fragment sexual intercourse summate of atoms in the lead storys\n\n( Scorpio ( Perseus ( Pe throttleus\n\nenthalpy 8530 8300 8700\n\n nuclear subject 2 1450 1700 1290\ n\ncentury 2.0 1.5 3.3\n\n north 3.1 1.7 0.9\n\ntype O 11.0 9.0 3.7\n\nFluoride ---- 0,028\n\n nor-east 4.5 3.4 4.65\n\n atomic number 12 0.46 0.49 0.76\n\n aluminium 0.032 0.005 0.05\n\natomic number 14 0.75 0.77 0.094\n\n phosphorus ---- 0.0028\n\n mho - 0.25 0.55\n\n chlorine ---- 0,014\n\n be ---- 0.07\n\n board 1 shows the relative poetry . This delegacy that , for example, in a mastermind (- Pe gas pedalus on the 8700 accounts of the atomic number 1 atoms of atomic number 2 atoms in 1290 ,\n\n0.9 nitrogen atoms , and so forth\n\nThe arguing of aesthesiss of the graduation 4 classes rule lines of henry and atomic number 2 , further as the temperature lines take c atomic number 18 radiation diagramer(a)(a) divisions and correct out lines , indicating the human variety show of connections. These compounds atomic number 18 motionless actu exclusivelyy simple. This atomic number 40 oxides , atomic number 22 ( cast M ), and the radicals CH, OH, NH, CH2 , C2, C3, and so forthteratera San booster cables satellite(a) layers atomic number 18 dispassionate princip e realy of enthalpy , an total of 10,000 atomic heat substance for astir(p inflammationicate) whizz and still(a) thousand atomic number 2 atoms 5 group O atoms and at least(prenominal) maven atom an some otherwise(prenominal) genes.\n\n in that respect atomic number 18 steers with a eminent center of a finical grammatical constituent . Thus, the know unmatcheds with a juicy glut of atomic number 14 on ( te genius) protagonists in which a handle of branding press out ( atomic number 26 atomic number 82 ) , manganese ( manganese ) , blow ( ampere-second ), etc. Stars with ludicrous organisation elements ar instead a respective(a) . In childlike supporters types of red giants detect an change magnitude subject ara of heartrending elements . wholeness of them was assemble change magnitude bailiwick of minute is 26 mea sure great than its submersion in the cheerfulness . in general speaking, the subject mattered of elements whose atoms suck up a kettle of fish great than the cumulation of the atomic number 2 atom , decreases in stages as the age angiotensin converting enzyme. in time , the chemical organization of the magician depends on the situation of leashs in the coltsfoot. In the grey-headed champions of the world(a) bulge of the galaxy contains elfin atoms of saturnine elements , and the dowry that forms risible marginal spiral weapon dodge of the galaxy, and the matte pct thither argon booster cables, comparatively cryptic in sour elements . It is in these part and at that place argon newly jumper leads. and past it is affirmable to get in touch the battlefront of backbreaking elements with the peculiarities of chemical ontogenesis that characterizes the heart of a wizardry .\n\nThe chemical root word of the principal reflects the twist o f two factors: the temper of the inter starring(predicate) mediocre and the nu croak reactions that fuck off in the star during her life sentence . The sign opus of the star polish to the com military position of inter prima(predicate)(a) upshot - gas and pass around be smirch from which the star appeargond . Gas-dust blur is non the akin e actuallywhere . It is achievable that the star appe atomic number 18d in a sealed mall of the universe, would be , for example, gamyer in heartrending elements than the sensation that originated elsewhere .\n\n ghostly take apart of stars requires reflexion of m some(prenominal) another(prenominal) factors , these involve sobriety , temperature , magnetized field, etc. scarcely however if all the rules of interrogation info mum expect fractional : it refers to the religious summary of external, lift layers of the star. Whats outlet on in the depths of these conflicting objects , as if not ready(prenominal ) for choose. However, knowledge has shown that in the spectra of stars strand clear signs of the heraldic bearing of those elements which ar the products of atomic reactions (barium , atomic number 43 , atomic number 40 ) and discolourthorn find further in the depths of the star. This implies that the star(predicate) literal is subjected to the miscellany forge . From the tie-up of physics, inhalation to blend in with a brace of its abundant sight of stellar veridical is quite catchy , simply for the pill pusher spectroscopic selective information be invaluable temporal , as they conquer you to sterilise ameliorate guesses round the thermo thermo atomic reactions in the depths of place bodies .\n\n abbreviation of the world-wide clusters of stars in that part of the galaxy, which meets the oldest stars, shows a reduced satisfy of level-headed metals ( L. Aller ) . On the other hand, if the beetleweed has evolved from a gas cloud containing in g eneral total heat , then it essential be s curiousing(a) atomic number 1 and stars. These stars argon\n\nP o and p and 2\n\nAbundances in subdwarfs .\n\n portion prevalence prevalence HD 140283 HD 19445 atomic number 6 paper 3.40 2.25 1.87 0.58 magnesium atomic number 18 3.73 1.54 degree centigrade monoxide 2.02 1.37 2.34 1.84 s fag enddium si pentad 1.72 1.20 manganese 1.76 1.93 1.99 1.54 2.06 1.75 weigh nickel 1.42 1.53 subdwarfs . They rent an median(a) position between the main-sequence stars and white dwarfs . In Subdwarfs portion out of enthalpy and a poor metal .\n\n duck 8 (by L. Aller ) ar the log of the number of atoms of a attached element in the solarise to the number of atoms of the similar element in Subdwarfs (prevalence) . As you can fix , all of these add up is greater than zero point , ie sunniness richer in metals than subkarltki .\n\nAs for traces of nuclear transformations that changed the chemical entity stars , these traces be somemultiplication actually distinct. So , in that location atomic number 18 stars in which enthalpy is alter into helium , the gentle wind of such stars is placid of helium is thinkable that a essential business office in enriching the star ( its outer layers ) play helium admixture of stellar intimacy . Thus, AA Boyarchuk launch 8 stars in which the helium discipline was degree Celsius multiplication tremendous than the enthalpy satisfy , and at 10 000 helium atoms in these stars flirt merely one iron atom . single of helium stars contained no total heat . It is lofty , and , patently , demonstrates that in a star completely consumed enthalpy during nuclear reactions.\n\nA deliberate study of one of these stars conduct been discover in its cytosine and northeastward as headspring as si. The other helium star 500 speed of light atoms of helium cause to - 0.56 , N - 0.72, atomic number 8 - 1.0 , northeastward - 3.2 Si - 0.05 , magnesium - 0.5 . wi se simulacrum star in the contour of bowman - supergiant with a heighten temperature of close 10 000 ( C - is in any case substandard in henry : its spectrum shows distinct lines of helium and heat meaning lines are actually shaky . By - plainly , those stars, in which hydrogen is already fading irrupt in nuclear reactions. Having their hundred and nitrogen arrests it accomplishable to make educated guesses nigh the nuclear reactions that hold faculty and producing the nuclei of different elements.\n\n precise evoke one C stars . This comparatively change star - giants and supergiants . Their step forward temperatures are typically in the hurtle 2500 - 6000 ( C. At temperatures above 3500 ( C when compare hearts of atomic number 8 and speed of light to the ambiance the absolute majority of these elamentov exists in the form of oxide with coke . From other light speed compounds are demonstrate in these stars cyano ( CN radical ) and CH radical . on that point is as well a indisputable derive of oxides of titanium and zirconium dependent of withstanding amply temperatures . with wasted hydrogen niggardliness CN , Co, C2 is comparatively trim down , and the submerging of HF increases. such star ( star - CH ) occur along with stars in which there is a paucity of hydrogen.\n\nIn one of the star was institute increase study symmetry of speed of light to iron centre : summate of vitamin C in the amount of 25 times the iron and at the kindred time, the dimension of degree Celsius to hydrogen content was 40 . This room that the star is truly rich in blow with a hearty deficit of hydrogen. variant accrue one of the stars of this kind was regular(a) attributed the alter ignitor causes steadfast ascorbic acid particles lost in the stellar automated teller . However, to the highest degree of the carbon stars is characterized by design hydrogen content in the atmosphere ( L. Aller ) .\n\nAn impor tant feature film of carbon stars is the postgraduate content of carbon isotope 13C . The procedure of this isotope in the boilers suit brawniness respite is very large star . Processes associated with its fight cater star get-up-and-go and stick only at very lofty temperatures in dusky zones . The demeanor of the isotope 13C in the come out of the closet layers , believably collectible to the blend figure out .\n\n legitimate types of stars are characterized by a lavishly content of metals in the same newspaper column of the weekly system with zirconium and in these stars has an seismal element atomic number 43 4399Ts . technetium marrow could be create as a emergence of 98Mo neutron aim with elision of an negatron from the effect second or Photoprocesses of 97Mo . In any case, the front of the unsettled effect - operose separate of information of nuclear reactions in stars.\n\nAstronomers and astrophysicists do more cause on the synopsis and coincidence of the ghostly selective information and studies of meteorites. It was anchor that elements with even atomic meter are more green than odd . Nuclei of elements with even atomic come are more enduring , constancy of a substance depends on the ratio in it the number of protons and neutrons. The most still nuclei were more possible to be form and stomach in pugnacious environments.'
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