Type I Supernova

Q.19) The difference occurs in physical terms. In type ii supernovae, collapse of a massive star takes place. While Type ia supernovae is caused by a white dwarf star that accretes mass enough to surpass the Chandrasekhar limit resulting in a collapse into the neutron star. (DTU 10ED Page: 411 and 414)

The main idea for paragraphs 6-8 in When Stars Explode is how stars do explode. Here are some details: according to the text,“But these nuclear reactions do not make as much energy as hydrogen did. Within a few million years, the star has nothing left." The text also said “So the star's center collapses, scrunching itself into a small, dense object. Meanwhile, the star's outer layer shoots into space at millions of miles per hour. The star has exploded!"

After its core hydrogen is depleted, a red main sequence star will go supernova after its red giant phase.

The larger a star, the shorter their lifespan is, and they explode as supernovae, blasting out powerful shockwaves that create a chain-reaction that spews throughout the galaxy. Within just a few million years, the galaxy is forming stars up to hundreds of times more than a normal galaxy would. When all of the gas available is used up in about ten million years, the galaxy calms down and the period

At some point in the future when the hydrogen runs out, at that point the star will start to collapse itself under its own weight. It get denser, hotter until the point where it starts to use the helium atoms themselves as the fuel for the fusion. As the star begins to fuse helium, it creates more energy and that causes the outer layers of the star to start to expand. One day our sun will grow so large that it will swallow up the inner planets of our solar system. It will become a red giant, for the sun this will be the beginning of the end. Then they explode and become a supernova or for some biggggggggggeeeeerrr stars it would be a hypernova, which is waaaayyy stronger than a supernova; supernovas are some of the most beautiful sights in the universe. Lucky for us, our sun is too small to even explode and become a supernova. These explosion of stars are so powerful that it can outshine the whole galaxy during its explosion. For the

The only stars that are within the ten light year radius are Proxima Centauri,Proxima Centauri,Luhman 16,WISE 0855−0714,Wolf 359,Lalande 21185,Sirius,Luyten 726-8, and Ross 154 with are all way too small to create a supernova. In fact the closest star that could create a supernova is Betelgeuse which is 430 light years away all it will do is shine a little brighter for a couple weeks.

Similar to when nuclear fission occurs, the nucleus of an atom splits into smaller parts. In Supernova, by Jeffrey C. Hall (2004), he states that a Type I supernova is the explosion of a dead star that consists mainly of the element, Carbon. In a Type II supernova,

Cassiopeia A Supernova – A Supernova is a star that has exploded and increases in brightness because it’s mass is now ejected.

What is left after the huge explosion is another dwarf star, a neutron star, or the fierce black hole. A neutron star is about the size of a city like Los Angeles, but has the mass of about two suns. This means it is incredibly dense and has an unbelievable gravitational pull, almost 2 billion times that on earth. In fact, this pull is so strong that it bends radiation and allows astronomers to see the back of the star. They also spin up to 48 thousand times per minute due to the energy from the supernova.

A vampire star is a star which ‘steals’ energy or matter from other stars. For this, the star has to be located very close to another star. This can be for example a compact double star, or stars that cross each other’s tracks (this occurs especially in clusters). If one or both stars contain enough matter, the mass transfer or collision can result into a type Ia supernova (supernova: the explosion of a star). A type Ia supernova takes place when a white dwarf gets blown to bits by an explosion caused by another star.

After a time, the hydrogen runs out almost completely, and it collapses. New reactions begin to take place in the core and these reactions cause the star to expand rapidly. As the stars begin to deplete their new fuel, they switch to others. New elements are formed in the cores of stars but they become too heavy. The star has reached its end growth. When it reaches the end, a tremendous amount of energy is released and it begins to shed its outer layers, the gravity is too weak hold onto them anymore. Once the layers are removed, in the stars place is a fiery core called a planetary nebula. Eventually, the core runs out of fuel and it collapses. This star is now in a very dense state, and is called a white dwarf. Eventually, the white dwarf cools until it no longer shines. This dead star is called a brown dwarf.More massive stars, however, have more violent ways of dying. Some stars turn it into a supergiant. Supergiant stars are extremely bright, and are extremely large. Supergiant stars cores, can collapse violently and suddenly. This collapse causes a tremendous explosion, called a

The first way a supernova happens is in a binary solar system, meaning that there’re two stars orbiting around the same point. One of the stars, which is a carbon-oxygen white dwarf,

Supernovas are the explosion of a star when it reaches the end of its life. There are two ways a star can go supernova. The first way or a Type I supernova occurs in the Binary system which is when two stars orbit the same point. The two stars are a white dwarf and a red giant. A white dwarf is a small dense star that is around the size of a planet and a red giant is a star at its last stages of life. If these two stars are close enough, matter will be transferred to the white dwarf from the red giant. When the star’s core reaches its limit of matter, a thermonuclear detonation will occur leaving nothing behind unless there were leftover elements in the white dwarf or there were elements made in the supernova explosion. One of the elements made in the explosion is radioactive nickel.

When the star actually starts to run out of nuclear fuel some of the mass flows into the star's core. When the core becomes too heavy it cannot take its own gravitational force. Which causes the core to collapse, and as it collapses it results in a giant supernova. Many people worry that the sun will become into a supernova. That has no chance of happening because the sun does not have enough mass to become a supernova.

Main sequence stars like our own sun enduring in a state of nuclear fusion during which they will produce energy for billions of years by replacing hydrogen to helium. Stars change over billions of years. When their main sequence phase ends they pass through other states of existence according to their size and other characteristics. The larger a star's mass, the shorter its lifespan is. As stars move toward the end of their lives, much of their hydrogen will be converted to helium. Helium sinks to the star's core and raises the star's temperature—causing its outer shell to expand. These large, puffy stars are known as Red Giants. The red giant phase is actually a prelude to a star shedding its outer layers and becoming a small, dense body called a White Dwarf. White dwarfs cool down for billions and billions of years, until they finally go dark and produce no energy at all. Once this happens, scientists have yet to observe, such stars become known as Black Dwarfs. A few stars avoid this evolutionary path and instead go out with a bang, exploding as Supernovae. These violent explosions leave behind a small core that will then turn into something called a Neutron Star or even, if the remainder is large enough, it is then turned into something called a Black Hole.