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In what ways is the evolution of a massive star similar to the evolution of the sun?
Wiki User
∙ 14y ago
Gravity is what causes dust to gather to make stars and planets. ANswer All stars start out as swirling clouds of elements (mainly hydrogen and helium), called nebulae. This occurs whether a small star like the sun or a very massive star like Betelgeuse or Sirius is formed. In the core of little spherical pockets (protostars which become the stars eventually), nucleosynthesis begins. This occurs in all stars, converting hydrogen to helium and all elements up to iron (atomic number 26). Once nucleosynthesis commences, protostars become known as stars. But, as Marcus Chown is so fond of 'subtleties' in his book Quantum Theory cannot hurt you, here is a subtlety to understand here. Stars, however large or small, have great weight crushing the star into a tiny pinprick by gravity. Obviously the larger the star the greater the weight and the more massive the crushing force. There is a balance however; the heat generated from nucleosynthesis keeps the star rotund and noncollapsing. But with the greater crushing force of the larger stars, heat has to be generated all the faster. So stars, start off similar from nebulae, whether large or small like the sun. But their mass determines their fates in the end.
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∙ 14y ago
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In what ways is the evolution of massive star similar to the evolution of the sun and in what ways is it diff?
Stellar evolutionAll stars develop in a similar way.The sun is an average sized star, much smaller than the really massive stars.Stars form from spinning nebulae, through friction pressure builds up and through the increasing density of the hydrogen and helium gases within the centre of these spinning clouds, the gases are pushed gravitationally into a sphere called a protostar.The density at each sphere's centre increases until the hydrogen atoms are really near to one another and their wavefunctions overlap, tunnelling them into heavier nuclei, like helium. This releases heat.Stars' heat is an outward pressure, counteracting the inward pressure of the star's bulk's mass. Gravity attempts to squish the star thoroughly, the heat 'inflates' it.Obviously the gravity sucking the star into nothing is much greater for a massive star than for a miserable little star like the sun.Thus the heat of a massive star must be greater. The massive star's mass crushes down harder than the smaller star's mass. This keeps the density in the core of the massive star greater than the density of the core of the little starlet.Thus the atoms are closer in the core of the big star and so their wavefunctions overlap more, more nucleosynthesis occurs and more vicious heat is released.This counteracts the squashing and the squishing of the star's mass.Small stars, alas, cannot do this.So, the H atoms are closer in a larger star, so they are converted to He faster.Unfortunately this means that the star runs out of hydrogen faster than the smaller stars, paradoxically.One would think that a large bag of potatoes would be consumed slower than a miniscule bag!Not so, a large sun swallows its whalesworth of H whole while a tiny star nibbles away ineffably slowly at its peanutsworth of H.The stars, of all sizes fill up with He and lose H.Since the nucleosynthesis is over, the heat cannot be released any more and so cannot battle the overdominationally crushingnesses of the star's obese bulk.The star crunches down on itself, which increases the density of the core to such an extreme as to fear disobeying the Pauli exclusion principle.To cut an extremely several million year long story short isSmall stars have their outer layers waft off, swelling the star into a red giant.The electrons force themselves apart by the Pauli exclusion principle, with such dramaticness as to increase the sizes of stars terrifyingly. When the star is very large indeed, it may swallow a few planets its solar system.Then the outer layers drift away leaving a lonely white dwarf behind.Massive stars on the other hand run away with their collapse and thus Pauli exclusion effects more dramatically, cataclysmically exploding as the electron fly away from one another.After a cracking explosion in the silence of space's vaccuum which you wouldn't hear, the core, which remains unhappily from a small star, crushes itself even further.The core responds (maybe, this is my hypothesis) from the effect of Newton's third law of motion, so crushes futher, so much further that the Pauli exclusion cannot exist by the useless little electrons anymore (they're tiring now?), but the job of the Pauli exclusion has to be reacquainted to a different particle, the neutron. When neutrons take over, the core becomes termed a neutron star.If it, as a white dwarf briefly earlier, was 3 times more massive than our sun, it will crush itself past the stage of neutron star to that of black hole.Spacetime is stretched around a black hole, so time slows down. Black holes are the end of everything, but at least you'll know, having watched a massive star's demise into a black hole that is about to swallow you, that at least the end of a massive star is at least more exciting than that of a miserably sized star.information sourcesHawking, S. W. 1988 : a Brief History of Time
Is the lifespan of small stars are much slower or faster than a massive star?
Yes we can say, life span of small stars are slower than bigger one because in the small star the nuclear fusion takes place at the moderate rate but massive stars require large amount of energy and therefore nuclear fusion consume all it's fuel in short Time As compare to small stars also mechanism of nuclear fusion in both case followed by different ways
The lifetime of a star depends on its?
The life of a star depends on the amount of hydrogen a star has left. Simple answer the larger the star the shorter the life span for example: stars like our Sun can be expected to live 8-12 billion years a more massive star like Beetlegeuse can expect to live 100-400 million years and the most massive stars like S. Doradus and VY Canis Majoris can expect to live just a few million years. The larger the star the more fuel it consumes. Due to contrary belief not all stars burn hydrogen some stars burn helium others burn carbon some even burn oxygen this is all based off the core temperature the hotter the core the more elements it can burn
Is there evidence that there are other planets orbiting other stars?
Yes, there is. There is evidence of over 300 "exo-planets", planets that are orbiting other stars. Because the pull of gravity goes both ways, it can be said that a sun orbits the planet in addition to the planet orbiting the sun. Because suns are much more massive than planets, the motion of the planet in its orbit is far greater than the motion of the star, but the stars DO "wiggle" a bit. This "wiggle" is sometimes detectable, especially if the planet is itself quite massive - like a "super-Jupiter". And sometimes, the planet passing in front of the star blocks a teeny bit of the starlight, causing the star to appear to be slightly less bright.
When a stars nuclear energy runs out it dies A star can die in many ways A is one way a star might die and it can trigger the beginning of a new star's life cycle?
Supernova
What are the four ways evolution?
These four factors can effect ways evolution occur: 1.) Mutation 2.) Selection3.) Gene Flow4.) Genetic Drift
What are five ways in which organisms are similar?
What are the five ways in which organisms are similar?
What are some simple ways to prove evolution wrong?
Evolution is not incorrect. Science believes that creatioism is wrong.
What is exhibit parallel and divergent and convergent evolution?
Parallel evolution: two (or more) species or genera that evolve in similar ways over time. Divergent evolution: two or more closely related species or genera that evolve to become quite different from one another. Convergent evolution: two or more unrelated and dissimilar species or genera that evolve to become similar to one another, for example penguins (birds that used to fly), dolphins (mammals that used to walk on land) and fish (animals that were always swimming)
How does observed evolutionary change support the scientific theory of evolution?
The theory predicts that evolution will happen and in certain ways. The observed evolution makes this prediction correct. It also defines evolution as happening, and as such is perfect evidence in support of it.
Are stars classified by how hot they are?
Of course, you can classify them in different ways. One important way to classify them is their mass; it is basically their mass that defines the star's evolution. But you can also classify them according to their temperature, radius, age, metallicity, etc.
What anime would you like I like Lucky star Please Teacher Please Twins and Mai Hime.?
Try School Rumble it's very funny and in many ways similar to lucky star and well hope you check it out and enjoy it!!!!!
What are gases in Jupiter's atmosphere?
Mainly hydrogen and helium, with trace amounts of ammonia, hydrogen sulfide, methane, and water. In many ways the atmosphere of Jupiter is similar to the atmosphere of a star.
In what ways was Darwin an important scientist?
he discovered natural selection and the theory of evolution
In what ways is the evolution of massive star similar to the evolution of the sun and in what ways is it diff?
Stellar evolutionAll stars develop in a similar way.The sun is an average sized star, much smaller than the really massive stars.Stars form from spinning nebulae, through friction pressure builds up and through the increasing density of the hydrogen and helium gases within the centre of these spinning clouds, the gases are pushed gravitationally into a sphere called a protostar.The density at each sphere's centre increases until the hydrogen atoms are really near to one another and their wavefunctions overlap, tunnelling them into heavier nuclei, like helium. This releases heat.Stars' heat is an outward pressure, counteracting the inward pressure of the star's bulk's mass. Gravity attempts to squish the star thoroughly, the heat 'inflates' it.Obviously the gravity sucking the star into nothing is much greater for a massive star than for a miserable little star like the sun.Thus the heat of a massive star must be greater. The massive star's mass crushes down harder than the smaller star's mass. This keeps the density in the core of the massive star greater than the density of the core of the little starlet.Thus the atoms are closer in the core of the big star and so their wavefunctions overlap more, more nucleosynthesis occurs and more vicious heat is released.This counteracts the squashing and the squishing of the star's mass.Small stars, alas, cannot do this.So, the H atoms are closer in a larger star, so they are converted to He faster.Unfortunately this means that the star runs out of hydrogen faster than the smaller stars, paradoxically.One would think that a large bag of potatoes would be consumed slower than a miniscule bag!Not so, a large sun swallows its whalesworth of H whole while a tiny star nibbles away ineffably slowly at its peanutsworth of H.The stars, of all sizes fill up with He and lose H.Since the nucleosynthesis is over, the heat cannot be released any more and so cannot battle the overdominationally crushingnesses of the star's obese bulk.The star crunches down on itself, which increases the density of the core to such an extreme as to fear disobeying the Pauli exclusion principle.To cut an extremely several million year long story short isSmall stars have their outer layers waft off, swelling the star into a red giant.The electrons force themselves apart by the Pauli exclusion principle, with such dramaticness as to increase the sizes of stars terrifyingly. When the star is very large indeed, it may swallow a few planets its solar system.Then the outer layers drift away leaving a lonely white dwarf behind.Massive stars on the other hand run away with their collapse and thus Pauli exclusion effects more dramatically, cataclysmically exploding as the electron fly away from one another.After a cracking explosion in the silence of space's vaccuum which you wouldn't hear, the core, which remains unhappily from a small star, crushes itself even further.The core responds (maybe, this is my hypothesis) from the effect of Newton's third law of motion, so crushes futher, so much further that the Pauli exclusion cannot exist by the useless little electrons anymore (they're tiring now?), but the job of the Pauli exclusion has to be reacquainted to a different particle, the neutron. When neutrons take over, the core becomes termed a neutron star.If it, as a white dwarf briefly earlier, was 3 times more massive than our sun, it will crush itself past the stage of neutron star to that of black hole.Spacetime is stretched around a black hole, so time slows down. Black holes are the end of everything, but at least you'll know, having watched a massive star's demise into a black hole that is about to swallow you, that at least the end of a massive star is at least more exciting than that of a miserably sized star.information sourcesHawking, S. W. 1988 : a Brief History of Time
What are three ways we determine a star?
It isn't clear what you want to determine about the star.
Does the existence of intermediate forms support or not support the theory of evolution?
Intermediate forms are predicted by evolutionary science in several ways. Their presence supports the theory of evolution.
