Supernovae

The explosion of a supernova leaves behind either a neutron star or a black hole, depending on the mass of the original star. Neutron stars are extremely dense, composed mostly of neutrons, while black holes are regions of space with a gravitational pull so strong that nothing, not even light, can escape from them.

Fusion reactions in red supergiants and supernovae create elements heavier than iron, such as gold, silver, and uranium. These elements form during the explosive deaths of massive stars, scattering their enriched stellar material into the cosmos. This process is essential for the formation of planets, life, and the diversity of elements in the universe.

A hypernova is a more powerful and larger explosion than a supernova. It occurs when a massive star collapses and releases an immense amount of energy, much greater than that of a supernova. Hypernovae are one of the most energetic events in the universe.

When a star explodes as a supernova, it has finished it's main sequence, is in maturity and when it finally explodes it's in the stellar remnants stage.
A white dwarf star is capable of turning into a supernova if the fusion action is reignited. It can also happen when a star starts to collapse.

The Answer may be hydrogen.

Hydrogen moves to the suns core as it starts to die, or explode. hydrogen is a very flammable gas.

A star, like the sun is surrounded by heat.

this heat will ignite the hydrogen gases as it moves to the core. This ignition of the hydrogen will cause the star to expand in size and increase in temperature.

Close. A black hole is formed when a massive star runs out of fuel and collapses under its own gravity, compressing its mass into an infinitely dense point called a singularity. This collapse can occur after a supernova explosion in the case of a massive star, or through other processes such as the direct collapse of gas in the early universe for supermassive black holes.

Yes, a red giant star can undergo a supernova explosion at the end of its life cycle. This occurs when the star has exhausted its nuclear fuel and can no longer support itself against gravity, leading to a dramatic collapse and subsequent explosion.

The 1054 supernova, also known as SN 1054, is used in an equation called the light-travel time distance equation. This equation helps astronomers calculate distances to celestial objects by accounting for the time it takes light to travel from the object to Earth. The supernova is used as a standard reference for calibrating this distance measurement method.

A nova is when a star "dies", or runs out of fuel to burn and implodes, and the gravity makes it collapse in on itself. But it will effect any space objects near it like planets and asteroids. A supernova is when a huge star (usually a few times the size of our sun to 30 times the size)"dies" causing a giant implosion which will effect space objects and their gravity farther away than of any planets.

Not all stars that undergo a supernova explosion will leave behind a neutron star. Depending on the mass of the star, the remnants could be a neutron star, a black hole, or in some cases, nothing at all if the explosion completely obliterates the star.

There are somewhere around 65 billion neutrinos per second passing through every square centimeter perpendicular to the Sun.

By far the majority of those also come out the other side... baryonic matter is essentially transparent to neutrinos.

SN 1987A [See Link] was a supernova in the Tarantula Nebula in the Large Magellanic Cloud, a nearby dwarf galaxy. It occurred approximately 168,000 light years from Earth, close enough that it was visible to the naked eye. It was the closest observed supernova since SN 1604, which occurred in the Milky Way. The light from the supernova reached Earth on February 23, 1987. As the first supernova discovered in 1987, it was labeled "1987A".

The Sun is not massive enough to undergo a supernova explosion. A supernova occurs when a massive star runs out of fuel, collapses under its own gravity, and then explodes. The Sun is not massive enough to go through this process and will instead eventually evolve into a red giant and then into a white dwarf.

A black hole or a neutron star.

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.

There are several mechanisms proposed for supernova explosions. Since we have never seen one close up (which is probably just as well!) this is mostly theoretical.

As large stars (bigger than about 3 solar masses) grow old, they run low on hydrogen, the nuclear fuel that they convert into helium. It isn't really so much that the hydrogen is "used up", it's more as if it were a wood fire in a fireplace; at some point, the ashes prevent the wood from burning properly. In a star, the helium "ash" of the nuclear fire builds up to the point where it's interfering with the hydrogen fusion, and the star begins to collapse under gravity.

When the core pressure and temperature increases enough, the star begins fusing helium into carbon and oxygen, and the "ash" becomes new "fuel", and the star expands, into a red giant phase. Eventually, they cycle repeats, and the carbon and oxygen begin to interfere, and the star begins to collapse again. When the core becomes hot enough, it begins fusing carbon and oxygen into much heavier elements. As each fusion reaction occurs, it contributes less and less energy, until the fusion process begins to produce elements heavier than iron; at that point, fusion SUCKS ENERGY OUT of the star, and the star collapses abruptly. Between the gravitational collapse and the nuclear fusion, the star creates elements all the way to the transuranics, including everything lighter. We know this because our Earth, formed out of the debris from old supernova stars, contains heavy elements like gold, lead, and uranium.

The collapse of the star compresses the core of the star into either a black hole or a neutron star, depending on the mechanics of the explosion and the initial mass, and the remainder of the star's mass is blasted back into space, to become new nebulas and perhaps new solar systems.

The Benelli Supernova does not come with a damascus barrel as a factory option. However, some custom gunsmiths may offer aftermarket damascus barrel options for the Supernova.

In the explosion of a supernova, the first events involve the core of the massive star collapsing due to gravitational forces. This collapse triggers a rebound effect, causing a shockwave to form and propagate outward through the star. This shockwave eventually leads to the violent expulsion of the outer layers of the star into space.

A supernova reaction occurs in the life cycle of a massive star that has exhausted its nuclear fuel and reaches the end of its life. The core of the star collapses under gravity, causing a powerful explosion that briefly outshines an entire galaxy.

Probably not. Dark matter is not believed to concentrate well in or around masses the size of stars. But it does concentrate well around galaxies and clusters of galaxies. Most of the mass of a galaxy like ours is believed to be in a sphere of dark matter in the galaxy's spherical halo.

The only way we'll ever know if Betelgeuse has "gone supernova" is when we see it. Of course, by the time we see it, the event will actually have happened some 640 years earlier, because that's how long its light takes to reach our eyes. Despite being only about 10 million years old (young, by stellar standards,) Betelgeuse is very late in its life cycle. Astronomers estimate in has about a million years left, maximum. Of course, it may already have experienced its supernova; we just don't know yet because when we see Betelgeuse, we're seeing it as it appeared in approximately the year 1375.

Some stars explode as supernovae when they run out of the hydrogen which they depend on to stay hot. Another way is due to binaries - when a particularly large star, e.g. a red giant, attracts a smaller star due to gravitational pull, and they orbit each other. The star cannot bear the heat and explodes in a massive amount of heat and light - that is how novae happen. A supernova has a much larger effect than a mere nova, and they happen when the star collapses due to reduction of fuel before the spontaneous explosion, and thus causing it to be much larger and brighter.

Your question does not make sense. A supernova does not die. A supernova is what happens when a supergiant or a hypergiant star becomes unstable and cannot maintain stability and explodes cutting away half of it's mass. I hope this helps you.