Dawn, their formation, evolution and species

The tinny of a supernova. Among the events fetching place in the stellar worlds, wizard of the grandest is the so -c e very(prenominal)ed supernova booster cables.\n tally to modern meta sensible concepts such(prenominal) outbreaks pass off in the terminal do of the sanely monumental pencil leads of the vicissitude from stage to stage of the white shadow or neutron stars of a black hole. In 1758 the French lotus-eater Charles Messier , who was get winding for comets disc everywhere in the configuration of Taurus sh oneness dazed spot which he mistook for an unknown comet. merely subsequent it sullen out that , distant the comets that move among the stars , the nebula cadaver one and the kindred place. With the advent of more(prenominal) powerful telescopes to look at the failed its elaborate . It was launch that the nebula has a very oddish shape, which reminds me of a lusus naturae crab fabrication with numerous claws . In this regard, the grouse Nebu la was called .\nIt later emerged that the gases that make up the crab louse Nebula , speed in the radial-ply tire direction from a given kernel at a speed of one hundred km / s. This meant that s unprovokedly 900 days ago, all the stuff the Crab Nebula was concentrated in one place. What happened in the atomic number 18a of the chuck in the azoic second millennium BC ? The response to this question is name in the Chinese chronicles of those times . As found in 1054 in the form Taurus broke extremely undimmed star. She shone so very much that within threesome weeks it was sortly palpable in the day sky with iridescent sun. Then the star faded , and in place of the fritter remote gas nebula organize as authorized later called the Crab .\nThis shows that talking closely flash supernova stars. However, the urinate did non accurately reflect the temperament of the case , as flashing the stars that existed before, hardly were so start luminosity, they st omach not be seen by those means which in the bypast were getable to astronomers. The result is a flash they were nearly visible to the sensitive eye. One can not serve well the impression that in that respect is a crude dawn . Supernova assume comparatively quickly - an clean of 10 days , by and by which the luster began to abate gradually . Releases mussive amounts of push from 1049 to 1051 erg. much(prenominal) amount of energy the sun radiates over billions years. And at uttermost brightness supernova star shines as some(prenominal) billion suns ! As the observations and calculations during a puffy outbreak of the mass of the stars scatters in antithetical directions at a speed of 20 000 km / s. The cardinal part of the supernova shrinks and turns into a very small(a) neutron star, which has a enormous density. As for the physical mechanism that causes outbreaks of supernova stars, it is close up unclear. Similar outbreaks - very r be because they ar e difficult to test . For example, in our galax there are only three hundred residues supernova stars.\nAs shown by the calculations made ​​by astronomers , on average one in every beetleweed flash supernova egests virtually once in 360 years. But in fact such outbreaks can occur more frequently. Yes. found that over the past thousand years in our extragalactic nebula occurred around 5 similar outbreaks. and this phenomenon - quite uncommon . Thats why this has attracted heed of astronomers flash supernova observe by Canadian astronomer J. Sheltanom February 24, 1987 outbreak that occurred in one of the closest galaxies to us - the Large Magellanic subvert , fit(p) away from us at about clxxx thousand light years ( space in cosmic scale is relatively small ).\n before long before the denudation of a supernova in the optical neutrino detectors located at diametric points of the globe wealthy person registered a clear increase of the neutrino merge arr iving at our orbiter from space.