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A Type II supernova results from the rapid collapse and violent explosion of a massive red supergiant star.
A star must have an initial mass of roughly at least 8 times (and no more than 40-50 times) the mass of the Sun for this type of explosion.
The star produces a massive core of iron by a series of nuclear fusion reactions.
Iron cannot be used to produce more energy and the core collapses under gravity. The energy released in this gravitational collapse is the cause of the explosion.
Also there is the presence of hydrogen in the composition of the spectrum. Finally, this type of supernova is seen only in the spiral arms of galaxies and in H II galaxies, but not in elliptical galaxies.
What else can I help you with?
What is the difference between Type I and Type II supernovae?
supernovae are classified by the lines in their spectra (which indicate which elements are present). type I supernovae have no hydrogen lines, having been caused by the explosion of a star with no hydrogen envelope. type II supernovae have hydrogen lines, indicating that the exploding progenitor star had retained a significant amount of its hydrogen before its supernova. type I supernovae are further classified based on the presence of silicon lines, which are present in type Ia supernovae but not types Ib and Ic.
What are Type II supernovae produced by?
Supernovae are classified as Type I or Type II depending upon the shape of their radioactive decay of the unstable heavy elements produced in the explosion.
What are shocks from supernovae?
Shocks from supernovae are abrupt changes in pressure and temperature caused by the explosion of a massive star. These shocks create powerful waves that propagate through the surrounding interstellar medium and can trigger the formation of new stars and influence the dynamics of gas and dust in galaxies. They also contribute to enriching the interstellar medium with heavy elements synthesized in the supernova explosion.
Why do type 2 supernovae occur in massive stars when the core reaches a critical mass of iron?
Type 2 supernovae occur in massive stars when the iron core reaches a critical mass because fusion of iron absorbs energy rather than releasing it. This causes a buildup of inert iron in the core, leading to a collapse due to lack of outward pressure to counteract gravity. The collapse triggers a powerful explosion, resulting in a Type 2 supernova.
What role did supernova play in creating the natural elements?
It is precisely the supernovae that created those elements and dispersed them into space.It is precisely the supernovae that created those elements and dispersed them into space.It is precisely the supernovae that created those elements and dispersed them into space.It is precisely the supernovae that created those elements and dispersed them into space.
What makes germanium?
All the germanium in the universe was made in supernovae explosions.
Where are supernovae?
Supernovae are massive explosions that occur when a star uses up its gas and explodes so they will only occur once a star has died.
If heavy elements are created by supernovae explosions do the atoms find each other again?
Yes given enough time
What is the difference between Type I and Type II supernovae?
supernovae are classified by the lines in their spectra (which indicate which elements are present). type I supernovae have no hydrogen lines, having been caused by the explosion of a star with no hydrogen envelope. type II supernovae have hydrogen lines, indicating that the exploding progenitor star had retained a significant amount of its hydrogen before its supernova. type I supernovae are further classified based on the presence of silicon lines, which are present in type Ia supernovae but not types Ib and Ic.
What are Type II supernovae produced by?
Supernovae are classified as Type I or Type II depending upon the shape of their radioactive decay of the unstable heavy elements produced in the explosion.
What are explosions in space called?
Explosions in space are often referred to as supernovae or space bursts. These phenomena can occur when stars reach the end of their life cycle and explode in a burst of energy, releasing shock waves and radiation into space.
What are the key differences between a type 1a supernova and a type 2 supernova?
Type 1a supernovae occur in binary star systems where one star is a white dwarf that accumulates material from its companion until it reaches a critical mass, causing a thermonuclear explosion. Type 2 supernovae happen when a massive star runs out of fuel and collapses under its own gravity, leading to a powerful explosion. The key difference is the mechanism of the explosion: type 1a is caused by thermonuclear reactions, while type 2 is due to gravitational collapse.
How are you made from stars?
Virtually any atom of element more massive than oxygen(including carbon and many more elements your body consists of) was created in supernovae explosions.
Black holes form from the remains of stars that?
"explode as supernovae". These are called Type II supernovae and sometimes a neutron star is formed, not a black hole.
How are gamma rays produced?
Gamma rays are produced by high-energy processes such as nuclear reactions, supernovae explosions, or particle interactions. These processes release immense amounts of energy, causing some of it to be emitted in the form of gamma rays, which are the most energetic type of electromagnetic radiation.
What are shocks from supernovae?
Shocks from supernovae are abrupt changes in pressure and temperature caused by the explosion of a massive star. These shocks create powerful waves that propagate through the surrounding interstellar medium and can trigger the formation of new stars and influence the dynamics of gas and dust in galaxies. They also contribute to enriching the interstellar medium with heavy elements synthesized in the supernova explosion.
Why do type 2 supernovae occur in massive stars when the core reaches a critical mass of iron?
Type 2 supernovae occur in massive stars when the iron core reaches a critical mass because fusion of iron absorbs energy rather than releasing it. This causes a buildup of inert iron in the core, leading to a collapse due to lack of outward pressure to counteract gravity. The collapse triggers a powerful explosion, resulting in a Type 2 supernova.
