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Novae and X-ray Bursts: Stellar Eruptions and Outbursts
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What is a nova?
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A
A sudden brightening of a star due to a thermonuclear runaway on its surface
💡 Explanation:
A nova is a sudden brightening of a star that occurs when a white dwarf in a binary system accretes material from its companion star. The accumulated material undergoes a thermonuclear runaway, leading to a rapid increase in brightness.