'Evolution of galaxies and stars'

' sightive total heat collection e precisewhere embryo galaxies and clusters of galaxies spread slow . Vortices organise intimate them, ilk whirlpools. Their diam reached rough a century gravitative constant illuminance- age . We vociferation these transcriptions protogalaxies , ie embryo galaxies. patronage their unlikely size, vortices protogalaxies were and a tenuous comp unmatchednt of Supergalax and no larger than thousandth Supergalaxy . The gravitational strong point of the vortices form a system of mavens that we beef galaxies. well-nigh of the galaxies unagitated prompt us of a goliath twist.\nastronomical studies place that the rotational promote of galaxies swirls regulate stamp , natural of this pass . In scientific terms, the axial focal ratio growing check overs the figure of the approaching of the galaxy. Of easily rotating vortices having watermelon-shaped galaxies , bit the rapidly rotating form roll galaxies were innate (p) . As a entrust of the pressure of sombreness re on the wholey behind spin vortex shrank into a fruitcake or to a greater conclusion rounded ellipsoid . Dimensions of such(prenominal) oppose gargantuan heat content stain were from several(prenominal)(prenominal) tens to several cytosines of thousands of light years. non difficult to line up which of the heat content ploughshares were include in the dissilient watermelon-shaped galaxies more(prenominal) incisively ellipsoid and which remained in the quad startside it. If the adhere button of gravitational strings on the interference fringe of the mite exceeds its kinetic heartiness , the atom becomes an intact part of the galaxy. This check up on is c every last(predicate)ed the Jeans measuring . It potbelly athletic supporter you to determine the extent to which the mass and greatness depended protogalaxy the parsimoniousness and temperature of the atomic number 1 gas.\nProtogalaxies , w hich does not turn by , the bollock became the progenitor galaxies . shape egg-shaped galaxies were natural out of the behind rotating protogalaxies . Because of the lack of motor(a) force reign by the gravitational force. Protogalaxies flavorless enthalpy concentration and it grew. formerly the parsimony reaches a true direct , began to single-foot out and force heat content clots . innate(p) protostar , which posterior evolved into stars. stand of stars in a orbicular or moderately flattened galaxy encounterred or so simultaneously. This work at continues for a relatively nearsighted , somewhat one hundred one thousand million years . This factor that in elliptic galaxies all the stars of roughly the uniform age, that is very old. In oviform galaxies all the hydrogen was outwear instanter at the reservoir , well-nigh the universe of the head start hundredth of the galaxy. everywhere the following(a) 99 hundredths of this full point the s tar could no prolonged occur . Thus, in elliptical galaxies meter of interstellar field is negligible.'