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Like planets in the solar system, exoplanets form, evolve, and interact with their host stars in many ways. Exoplanets form out of protostellar disks, which contain positive ions (H \({ }^+\) , H \({ }_2^++\) , and H \({ }_3^+\) ) and other radicals produced when molecules in the disk are photo-dissociated by stellar UV and X-ray photons and then charge-exchanged by protons in the stellar wind. These positive ions become the formation seeds of complex molecules including simple organics.

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Why Are Host Stars Important for Understanding Exoplanet Atmospheres?

  • 章节

  • 发表日期：

    2025年

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  • Jeffrey Linsky

摘要

Like planets in the solar system, exoplanets form, evolve, and interact with their host stars in many ways. Exoplanets form out of protostellar disks, which contain positive ions (H \({ }^+\) , H \({ }_2^++\) , and H \({ }_3^+\) ) and other radicals produced when molecules in the disk are photo-dissociated by stellar UV and X-ray photons and then charge-exchanged by protons in the stellar wind. These positive ions become the formation seeds of complex molecules including simple organics.