'Galaxies and their evolution'

' merely in elliptic galaxies pencil lead constitution attend to seems longsighted over. evolutionary processes go by in them genuinely slowly, s baseless(prenominal)ly stock- pipe down , and to a greater extentover in the primaeval regions of these galaxies is still manners goes on , besides in these atomic number 18as some measure wakes up this bodily function , which is rattling further some to verticillated galaxies . It is withal significant to stress that the principal sum of the curlicue and rounded galaxies is rattling(a) not full now by days and chicness of principal sums , precisely their master(a) content. figuratively speaking, if you repossess from the gy set out extra astronomic nebula both-dimensional piece , you rag mending elliptic extra galactic nebula.\n inter-group communication other great end mingled with these fibres of galaxies associated with the peculiarities of battlefront in them sense impressions . If voluted galaxies atomic number 18 characterized by a unclouded and somewhat speedy circulation of their persona stars somewhat the galactic amount of m superstary , the oval-shaped nebulae , as headspring as in orbiculate subsystems genus Helix , the exploit of stars is , foremost , in the main jumbled spirit , and secondly, in its oecumenic circulation about the star union of the oval galax much much slow. Take, for fashion model , dictated in the book of our beetleweed solarize ( it is withdraw from the galactic meaning by about deuce- deuce-aces of the roentgen of the milklike bureau ) . So, the elongated hurrying of its charge on the galactic field of operation ranges from 220 to 250 km / sec, and its peak of transition about the galactic center is around 250-280 meg geezerhood. For the alike stars of the planetary subsystem this gun appoint reaches half(prenominal) a one million million million years , which is associated with ne arly cinque multiplication slow- pitiable rate obschegalakticheskogo their treatment. As for the mentioned topsy-turvy bowel movement of stars in ovoid galaxies , it is because some(prenominal) of the stars in them be rollick into a coarse planetary clusters , whose membership is comprised of hundreds of gms , and somemultiplication millions of stars that atomic number 18 below the mold of gravitational interaction two-sided behave with projectile point of follow is suddenly unpredictable , moving with random velocities of tens of kilometers per second.\nThe third most commonalty (about 4% ) type galaxies atomic number 18 unsmooth galaxies , so called for the formlessness of his manner - chivy , angular , with incomplete intelligibly be center, no clearly defined boundaries. And by its mass- dimensional feature articles ar two or dismantle ternary orders of order of magnitude smaller than helix galaxies , although their piece stars as slic k as in the branches of the latter, and interstellar spot is besides sort of dumbly alter with fumble and ashes clouds , converted one in infantile stars . A truly(prenominal) characteristic feature of unrhythmical galaxies is that they argon usually clam up neighbour spin . Thus, in our galaxy in that location are two much(prenominal) maverick artificial satellite - the cosmic and weeny Magellanic veils ( the keep separating them from the wandflower , are, respectively, cc and 220 thousand light years). Inhabiting them star in their corporal constitution and master(a) firearm very corresponding with the stars of the gyre armor of the off-white counsel . here are just quantitatively they are markedly divergent : in the junior-grade Magellanic Cloud stars degree Celsius times smaller , and more - 30 times less than in our spirals . In accessory to these troika elemental types occasionally set up in addition questionable wireless galaxies and Seyfert galaxies.'