爱的被告

天文学家发现一个围绕红矮星运行的“棉花糖”世界_我的网站

A |     在他们的观测中，天文学家注意到，这个“棉花糖”世界，正如许多人所认为的那样，似乎比我们之前探测到的任何其他气态巨行星的密度都要低得多。此外，它与它所环绕的红矮星的距离很近，这引起了关于该行星形成的更多问题。卡内基科学研究所地球和行星实验室的研究员Shubham Kanodia在NOIRLab共享的新闻稿中说：“传统上认为红矮星周围的巨行星很难形成。    China will step up efforts to strengthen ecological conservation during the 2026-2030 period as it continues to pursue green modernization, according to a recently issued development plan.
The plan, jointly issued by the Ministry of Ecology and Environment, the Ministry of Natural Resources and other departments, said China aims to steadily improve the quality of its ecosystems, enhance ecosystem diversity, stability and resilience, and better safeguard the country's ecological security.
The plan also sets specific targets for the period, including keeping the proportion of land area covered by protected areas at no less than 18 percent of the country's total land area and raising the Ecological Quality Index (EQI) to 86.5. It also calls for increasing the soil and water conservation rate to above 74 percent and raising the forest coverage rate to 25.8 percent.
It also outlines tasks to further optimize the ecological spatial configuration, advance ecosystem protection and restoration, and comprehensively strengthen biodiversity conservation.
China has continued to strengthen ecological conservation and environmental protection. The country's landmark Ecological and Environmental Code, set to take effect this Saturday, marks another major step in these efforts, providing stronger legal support for sustainable and environmentally friendly development.
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B | 天文学家已经开始称这是一个‘棉花糖’世界，原因是这个气态巨行星具有与棉花糖相似的密度。

C | ”但是，这个气气态巨行星究竟是如何变成如此低的密度的，这让科学家们感到困惑。然而，他们已经为这个“棉花糖”世界的密度提出了至少一个可能的原因。而这个理由可能与该行星的岩石核心有关。

D | 据信，气态巨行星开始时是巨大的岩石核心，质量是地球的10倍。

E | 从那里，它们迅速拉入大量邻近的气体，形成我们今天所知道的“巨无霸”。其他的气态巨行星，如木星，甚至可能因吞噬其他行星而长到如此大。这颗被称为TOI-3757 b的行星有可能在其核心内有较低的重元素丰度，因此岩质核心形成得更慢，推迟了气体吸积的开始。

F | 未来对这个“棉花糖”世界的观察（也许用詹姆斯-韦伯太空望远镜）可以告诉我们更多关于它的大气和密度的信息。研究人员在《天文学杂志》上发表了一篇关于该行星的论文。

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Published on:16:56:31