088425
收藏Mendeley Data2024-01-31 更新2024-06-27 收录
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Our team has discovered the first ultra-hot NeptunedoublePoint LTT 9779b. This exoplanet is located just 0.017 au from its G7V host star comma in the middle of the so-called Neptunian desert comma and its survival under presumably intense X-ray irradiation is a mystery. All previous evidence points to close-in Neptunes being stripped of their gaseous envelopes and being reduced to hot rocky cores. We propose to observe the host star with XMM-Newton in order to determine the present X-ray irradiation. If the star is found to have normal coronal activity comma we will be forced to consider novel evolutionary scenarios for this system.
创建时间：
2024-01-31
