Stars with a mass of 2.0 solar masses will go through various stages of nuclear fusion, eventually ending as a white dwarf. The star will first fuse hydrogen into helium, then helium into heavier elements, expanding into a red giant before shedding its outer layers to form a planetary nebula. The remaining core will cool and condense into a white dwarf.
Stars with a solar mass between 5 and 20 are known as "massive stars." These stars burn their nuclear fuel more rapidly than lower-mass stars, leading to shorter lifespans. They typically end their life cycles in spectacular supernova explosions, and many may leave behind neutron stars or black holes. Their strong gravitational fields also influence their surrounding environments, often triggering star formation in nearby gas clouds.
Complete Question here: For three mass stars (a) a star with a mass three times the mass of the sun, (b) a star with a mass 5 times mass of the sun and (c) a star with a mass 20 times the mass of the sun --> in each case describe the possible final state of the star after all its fuel is exhausted. --> comment on the masses, size and density of these states. --> for each of the end states, briefly describe experimental observations that allow us to find, identify, and verify the existence of object left after star has exhausted its fuel and collapsed to a final state. As an example how do we know that neuron stars exist.
Generally, the bigger the star, the bigger the result after it's death. It is important to know all of the stages after a star's death. The size of a star, I think, is called solar mass. When a star does not have a sufficient amount of fuel to keep it's temperature at a certain point, to suppress it's own gravity, it's gravity will begin to collapse in on itself, commonly known as gravitational collapse. This is where the star is going to collapse in on itself, getting rid of it's gases, but leaves a small, burning core. Only with black holes does the star completely collapse in on itself, I think. A small star, let us take our own star for example, will collapse in on itself and become a small, white dwarf. White dwarfs are small stars that burn for billions of years. I think you get a white dwarf from the death of a star that was only about 1 solar mass. You then get bigger stars which can eventually become neutron stars. This is where a bigger star only leaves neutrons basically in the core, thus making it a neutron star. Finally you get black holes. Black holes are formed by a star of about 30-40 solar masses or more. In other words, a HUGE star. The sheer size of the star means it sheds it's envelope, (outer layer basically) extremely quickly, but because the mass is so high the opposing force is not nearly as strong to counter-balance the collapse, as opposed to a white dwarf, or neutron star formation. The collapse continues and continues until it digs a hole in through itself, and with the density so high it reaches a singularity point. This is a black hole. There you have it, three rough descriptions of the stages after a star's death. I know they sound confusing, they're probably not even accurate but my knowledge on star's is pretty rusty anyway. I hope this has helped in some way.
The mass of the remaining core of a star that has exploded as a supernova. (Although some stars can collapse directly to a black hole without a supernova explosion)If the mass exceeds about 3 to 4 solar masses the degeneracy pressure of neutrons is insufficient to stop the collapse, and the object will inevitably collapse into a black hole.See related link for more information.
The sun is still converting hydrogen into helium and on up the periodic table. Basically the sun is in static equillibrium between expansion and contraction due to gravity. When a sun reaches the white dward stage it no longer has the gravitational force to undergo the fusion of hydrogen into helium ect
Stars with a solar mass between 5 and 20 are known as "massive stars." These stars burn their nuclear fuel more rapidly than lower-mass stars, leading to shorter lifespans. They typically end their life cycles in spectacular supernova explosions, and many may leave behind neutron stars or black holes. Their strong gravitational fields also influence their surrounding environments, often triggering star formation in nearby gas clouds.
Complete Question here: For three mass stars (a) a star with a mass three times the mass of the sun, (b) a star with a mass 5 times mass of the sun and (c) a star with a mass 20 times the mass of the sun --> in each case describe the possible final state of the star after all its fuel is exhausted. --> comment on the masses, size and density of these states. --> for each of the end states, briefly describe experimental observations that allow us to find, identify, and verify the existence of object left after star has exhausted its fuel and collapsed to a final state. As an example how do we know that neuron stars exist.
A Type II supernova occurs when a massive star with about 8-20 times the mass of the Sun exhausts its nuclear fuel and collapses under its own gravity. The mass required for a Type II supernova is typically around 8 solar masses.
Depending on the mass of the original star it will either end up as a neutron star (< 20 solar masses) or a black hole (> 20 solar masses).
Fusion rates go up as the star gets more massive. How much higher can be a bit complicated. In general you can compare stars to cars. Small red dwarf stars are the "economy car" of astronomy. They have small fuel reserves (they are small) but burn it very slowly, and thus will live for almost a hundred billion years. The larger a star gets, the more fuel it has, but the faster it burns through it. This means stars like our sun last around 10 billion years, and stars that are say, 20-30 times larger only live a billion years or so. The reason the fusion rate increases with stellar mass is that the internal pressure and temperature of the stars core, with all the extra mass pressing down on it, is greatly increased. This means more atoms are crammed next to eachother, and each atom is going faster. This leads to more frequent, and more powerful collisions on the atomic scale, which can lead to fusion.
the life san of stars is like if you had everyone bring in candles into the class,some would be round,some would be tall and skinney,and they all would go ot at different times.the round candles may take a lung time to go out, while tea lights may last only a short period of time.just like stars
Generally, the bigger the star, the bigger the result after it's death. It is important to know all of the stages after a star's death. The size of a star, I think, is called solar mass. When a star does not have a sufficient amount of fuel to keep it's temperature at a certain point, to suppress it's own gravity, it's gravity will begin to collapse in on itself, commonly known as gravitational collapse. This is where the star is going to collapse in on itself, getting rid of it's gases, but leaves a small, burning core. Only with black holes does the star completely collapse in on itself, I think. A small star, let us take our own star for example, will collapse in on itself and become a small, white dwarf. White dwarfs are small stars that burn for billions of years. I think you get a white dwarf from the death of a star that was only about 1 solar mass. You then get bigger stars which can eventually become neutron stars. This is where a bigger star only leaves neutrons basically in the core, thus making it a neutron star. Finally you get black holes. Black holes are formed by a star of about 30-40 solar masses or more. In other words, a HUGE star. The sheer size of the star means it sheds it's envelope, (outer layer basically) extremely quickly, but because the mass is so high the opposing force is not nearly as strong to counter-balance the collapse, as opposed to a white dwarf, or neutron star formation. The collapse continues and continues until it digs a hole in through itself, and with the density so high it reaches a singularity point. This is a black hole. There you have it, three rough descriptions of the stages after a star's death. I know they sound confusing, they're probably not even accurate but my knowledge on star's is pretty rusty anyway. I hope this has helped in some way.
Mass. E=MC2 Supernova explosions happen with the most massive of stars > 20 of our Suns.
At the end of a solar lease, typically after 20-25 years, the homeowner can choose to renew the lease, purchase the solar panels at market value, have the solar company remove the panels, or potentially extend the lease on a month-to-month basis.
It's 0.08 solar masses. That's the smallest mass for a red dwarf star. There are "brown dwarf "stars with lower masses, but they are not usually defined as "true stars" because they don't emit energy by nuclear fusion reactions.
The mass of the remaining core of a star that has exploded as a supernova. (Although some stars can collapse directly to a black hole without a supernova explosion)If the mass exceeds about 3 to 4 solar masses the degeneracy pressure of neutrons is insufficient to stop the collapse, and the object will inevitably collapse into a black hole.See related link for more information.
No, red dwarf stars are not made from supernovae. Red dwarf stars are low mass stars that form from the gravitational collapse of gas and dust in interstellar clouds. Supernovae, on the other hand, occur when massive stars reach the end of their life cycle and explode.