What are the different types of supernova?
Supernova is a violent explosion that occurs as a phase of development in some stars. Supernova lasts from a few weeks to months and during this time it can release more energy than the sun would emit more than 10 billion years. Supernovs are able to overshadow their host galaxies. In the galaxy of the size of the Milky Way, supernova occurs about once every fifty years.
If the supernova appeared 26 light -years from the ground, it would blow half of our ozone layer. Some paleontologists blame the nearby supernova of Ordovician-Silurian extinction, which occurred approximately 444 million years ago, during which 60% of ocean life died. The brightest supernum in human history was watched by people throughout Eurasia in 1006, with the most detailed remarks from China. With the brightness between a quarter and half of the full moon, this supernova was so clear that it plunged shadows.
The supernova type I occurs when the white dwarf of carbon oxygen, the stellar rest of the size of the Earth remains of millions of years of burning hydrogen and helium, increases sufficient weight to cross it over the Chandrasekhar limit, 1,44 solar materials for the non-rotation star. Above this limit, electron shells in atoms form a dwarf can no longer bounce and the star collapses. The stellar object containing the mass of the sun in the space equal to the ground will even shrink until the necessary temperature and density for ignition of the carbon are achieved. Within a few seconds, the main percentage of carbon in the star star is connected into oxygen, magnesium and neon and releases energy equivalent to 10
29 TNT megatons. This is enough to blow the star by approximately 3% of the speed of light.
Supernova is also referred to as a supernova core. It happens when a supergiant star more than nine solar masses connect elements in its core up to iron, cOJ no longer provides clean energy gain through merger. There is no nuclear chain reaction without the production of clean energy and the iron core accumulates until the above Chandrasekhar limit reaches the above. At this point, it collapses and creates a neutron star, an object that contains the weight of the sun to an area of about 30 km (18.6 miles) across - the size of a large city. Most of the star outside the core also begins with a collapse, but reflects against the super dense matters of a neutron star, quickly combines all the remaining light cores and creates an explosion of a similar scale as a supernova type I.
Because supernova type I have a relatively predictable energy release, they are sometimes used as standard candles in astronomy for distance measurement. Because their absolutely known size is known, the relationship between absolute and obvious size can be used to determine the distance of supernova.