High Mass Stars Flashcard

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What is a supernova?

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A supernova is a powerful and luminous explosion that occurs at the end of a star's life cycle, resulting in the star's dramatic increase in brightness and the expulsion of its outer layers.

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What is the Crab Nebula?

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The Crab Nebula is the remnant of a supernova explosion that was observed in 1054 AD. It is located in the constellation Taurus and is one of the most studied astronomical objects.

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What happens to a star like the Sun in its later stages?

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In its later stages, a star like the Sun expands into a red giant, eventually shedding its outer layers and leaving behind a white dwarf.

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What is gravitational collapse?

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Gravitational collapse is the process by which a star's core collapses under its own gravity, leading to a supernova explosion.

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What is the fate of a high mass star after a supernova?

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After a supernova, a high mass star may leave behind a neutron star or black hole, depending on its remaining mass.

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What is a neutron star?

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A neutron star is the remnants of a supernova explosion, composed almost entirely of neutrons, and is incredibly dense.

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What is a black hole?

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A black hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it, often formed from the remnants of a massive star.

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What is the speed of gas ejected in a supernova explosion?

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The speed of gas ejected in a supernova explosion can reach up to 10% of the speed of light.

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What is the significance of supernovae in the universe?

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Supernovae play a crucial role in the universe by dispersing elements into space, contributing to the formation of new stars and planets.

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What is the difference between a Type I and Type II supernova?

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Type I supernovae occur in binary systems where a white dwarf accumulates matter from a companion star, while Type II supernovae result from the core collapse of massive stars.