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A stars usual and preferred fuel is hydrogen. For most of it's life it will be fusing hydrogen and releasing energy in the process and making larger nuclei. Once it has used up the hydrogen, it will then burn more of the heavier elements such as the helium that it had produced during it's main sequence. Depending on the stars mass, it will go through various phases of fusing heavier nuclei, with burn phases becoming progressively shorter. The dynamics involved mean that the star may expand to a red giant or red supergiant during these phases, if it's mass is sufficient.
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When a red super giant runs out of fuel at its core what forms?
When a red supergiant runs out of fuel at its core, it undergoes gravitational collapse, leading to the formation of a dense core primarily composed of iron. As the core collapses, it can no longer support itself against gravitational forces, resulting in a dramatic supernova explosion. This explosion can leave behind either a neutron star or a black hole, depending on the mass of the original star.
Which progression do astronomers expect our sun to follow as it runs out of fuel?
When the sun runs out of fuel it is expected to turn into a red supergiant engulfing earth. Then it is supposed to shrink into a white dwarf.
Which star expands due to fusion?
As a star ages and runs out of fuel in its core, it can expand in size as it transitions into a red giant. During this phase, fusion reactions occur in the outer layers of the star, causing it to expand and cool. This expansion happens when the star exhausts its hydrogen fuel and begins fusing helium in its core.
What is a star with an iron core?
A star with an iron core is typically a red supergiant star that has exhausted its nuclear fuel and is in the final stages of its life cycle. The iron core forms when the star's fusion processes can no longer generate enough energy to counteract gravitational collapse, leading to a supernova explosion.
What phase do stars end their main sequence as?
red supergiant
What is formed when a red supergiant runs out of fuel at its core?
black hole
When a red super giant runs out of fuel at its core what is formed?
When a red supergiant runs out of fuel at its core, it can no longer sustain nuclear fusion, leading to the core's collapse under gravity. This collapse results in the formation of a neutron star or, if the mass is sufficient, a black hole. The outer layers of the star are expelled in a supernova explosion, enriching the surrounding space with heavy elements.
When a red super giant runs out of fuel at its core what forms?
When a red supergiant runs out of fuel at its core, it undergoes gravitational collapse, leading to the formation of a dense core primarily composed of iron. As the core collapses, it can no longer support itself against gravitational forces, resulting in a dramatic supernova explosion. This explosion can leave behind either a neutron star or a black hole, depending on the mass of the original star.
Does a red supergiant have the hottest core?
No, a red supergiant does not have the hottest core. Instead, blue supergiant stars have the hottest cores, with temperatures reaching up to tens of thousands of degrees Kelvin. Red supergiants have cooler cores in comparison.
Which progression do astronomers expect our sun to follow as it runs out of fuel?
When the sun runs out of fuel it is expected to turn into a red supergiant engulfing earth. Then it is supposed to shrink into a white dwarf.
Why does a red super giant have the hottest core?
A red supergiant has the hottest core because it has exhausted its nuclear fuel in the core, causing the core to contract and heat up due to gravitational compression. This increased temperature is what leads the outer layers of the star to expand and cool, giving the star its red color.
Which star expands due to fusion?
As a star ages and runs out of fuel in its core, it can expand in size as it transitions into a red giant. During this phase, fusion reactions occur in the outer layers of the star, causing it to expand and cool. This expansion happens when the star exhausts its hydrogen fuel and begins fusing helium in its core.
What will happen to sun when it runs out of fuel if it had 10 times as much mass?
If the sun had 10 times its current mass, it would burn through its fuel faster and evolve into a red supergiant star. When it runs out of fuel, it may go through a supernova explosion, leaving behind a dense core called a neutron star or potentially collapsing into a black hole.
What is a huge star that begins to use the gases in its core?
When a star exhausts its core hydrogen fuel, it begins to fuse heavier elements like helium, carbon, and oxygen. This fusion process generates more energy in the core and causes the star to expand and become a huge star. This stage is known as a red giant or supergiant.
What is the fourth stage of a star?
the fourth stage of a star is "supergiant" and its also the hottest stage
When a star begins to fun out of fuel what two types of stars can it become?
When a star runs out of fuel, it can evolve into a red giant or a white dwarf, depending on its mass. Low to medium-mass stars (like our Sun) will expand and become red giants. High-mass stars will undergo a supernova explosion, leaving behind a dense core known as a white dwarf.
How is the red-giant formed?
A red giant forms when a star runs out of hydrogen fuel at its core and starts fusing hydrogen in a shell around the core the core. This causes the star to expand and cool.
