恒星吃掉行星
(原标题: Star Eats Planet)
2023-06-06
浏览次数: 12
这是我们所知的世界末日。具体来说，类似太阳的恒星ZTF SLRN-2020被看到正在吞噬自己的一颗行星。尽管许多行星最终会因旋转进入其中心恒星而死亡，但在2020年的事件中，有一颗类似木星的行星，这是第一次直接看到它。这颗名为ZTF SLRN-2020的恒星距离太阳约1.2万光年，位于天鹰座方向。在这次事件的特色动画插图中，当气体行星沿着吸引恒星的边缘掠过时，它的大气层第一次被拍到被剥离。行星上的一些气体被吸收到恒星的大气层中，而其他气体则被驱逐到太空中。在视频的最后，这颗行星被完全吞没并落入恒星的中心，导致恒星的外层大气短暂膨胀、升温并变亮。大约80亿年后的某一天，地球可能会旋转着撞向太阳。
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It’s the end of a world as we know it. Specifically, the Sun-like star ZTF SLRN-2020 was seen eating one of its own planets. Although many a planet eventually dies by spiraling into their central star, the 2020 event, involving a Jupiter-like planet, was the first time it was seen directly. The star ZTF SLRN-2020 lies about 12,000 light years from the Sun toward the constellation of the Eagle (Aquila). In the featured animated illustration of the incident, the gas planet's atmosphere is first pictured being stripped away as it skims along the outskirts of the attracting star. Some of the planet's gas is absorbed into the star's atmosphere, while other gas is expelled into space. By the video's end, the planet is completely engulfed and falls into the star's center, causing the star's outer atmosphere to briefly expand, heat up, and brighten. One day, about eight billion years from now, planet Earth may spiral into our Sun.