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The temperature distribution in a star decreases monotonically from the nuclear burning core to the top of its photosphere as heat leaks out into cold space. However, the hottest region of a star can be its outermost layer, the corona with temperatures of \(10^6\) to \(10^7\) K or even hotter.

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Stellar Coronae: The Source of X-ray Emission

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  • 发表日期：

    2025年

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  • Jeffrey Linsky

摘要

The temperature distribution in a star decreases monotonically from the nuclear burning core to the top of its photosphere as heat leaks out into cold space. However, the hottest region of a star can be its outermost layer, the corona with temperatures of \(10^6\) to \(10^7\) K or even hotter.