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How are supernovas made?
star explosions
What is the reason behind the occurrence of supernovas?
Supernovas occur when a massive star runs out of fuel and collapses under its own gravity, causing a powerful explosion that releases a huge amount of energy and creates new elements.
Why are supernovas called supernovas?
They are not. A supernova is an explosion of a star. Blue stars usually end their lives in such explosions.
What does a neutron star form?
A neutron star is what is left behind from some supernovas, which occur when a massive star explodes.
Why are blue stars called supernovas?
They are not. A supernova is an explosion of a star. Blue stars usually end their lives in such explosions.
What happens when massive stars collapse?
The collapses star gets squeezed by collapses gas and turns into a black hole.
Where did copper form?
Copper can only form in supernova explosions, when a dead star collapses to become either a neutron star or a black hole.
When a stars core collapses does a giant explosion happen?
Yes, if the star is massive enough when the core collapses a supernova explosion happens.
What is the difference between an average star and a massive star?
Massive stars are brighter, they burn up faster, and they die younger, usually in very energetic explosions.
How are pulsars related to supernovas?
Pulsars are formed during a supernova event when a massive star explodes, leaving behind a dense core called a neutron star. As this neutron star rotates rapidly, it emits beams of radiation that we detect as pulses, hence the name "pulsars." So, pulsars are directly related to the remnants of supernova explosions.
Why do supernovas not appear on the HR diagram?
A supernova is a star saying "The End". The H-R diagram shows they different types of stars by spectral class, color, etc. It was never intended to show the ending of stars. On most H-R diagrams, you will find at the top, or occasionally top right, a place for "Supergiants". Some of those stars will eventually become supernovas. To be absolutely clear: A supernova isn't a type of star - it is the "end" of a type of star.
How are novas and supernovas different?
A nova occurs when a white dwarf or neutron star in a binary star system collects enough hydrogen from its partner star's wind and/or flares to trigger fusion. The entire collected hydrogen atmosphere around the star suddenly undergoes fusion and converting to helium very much like in an enormous yield fusion bomb. This will repeat over and over again, as long as the partner star can supply hydrogen.A supernova occurs when a high mass star dies and becomes a neutron star. As the core collapses because fusion burns out and radiation pressure can no longer hold it up, then degenerate electron pressure can not hold it up, the electrons are forced into the nucleus and combine with protons to form neutrons, the strong force causes the nuclei to merge into one ball of neutrons: a neutron star. The surface of the neutron star is very hard and as additional matter from the original star continues to fall in and merge into the neutron star, a "traffic jam" occurs and the shockwave resulting from this reflects off the super hard surface of the neutron star, driving the supernova explosion. Suddenly everything falling in is now rushing out. This can only occur once.
