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发表于 2020-3-31 21:16:58
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2002.7.29（与年份无关 主要是日子）
Trumpler 14
川普勒14
Called Trumpler 14, this cluster of stars is located 8,000 light-years away in a huge star-forming region known as the Carina Nebula. The cluster is only 500,000 years old and has one of the highest concentrations of bright, massive stars in the entire Milky Way.
这个星团被称为川普勒14，距离我们8000光年，位于一个巨大的恒星形成区域，称为船底座星云。该星团只有50万年的历史，是整个银河系中最集中的明亮大质量恒星之一。
Young Star Cluster Trumpler 14 from Hubble
来自哈勃的年轻星团传令14
Image Credit: NASA, ESA, and J. Maíz Apellániz (IoAoA Spain); Acknowledgment: N. Smith (U. Arizona)
图片来源：美国航天局、欧洲航天局和J.Maíz Apellaniz（西班牙伊奥阿瓦）；鸣谢：N.Smith（亚利桑那大学）
Explanation: Why does star cluster Trumpler 14 have so many bright stars? Because it is so young. Many cluster stars have formed only in the past 5 million years and are so hot they emit detectable X-rays. In older star clusters, most stars this young have already died — typically exploding in a supernova — leaving behind stars that are fainter and redder. Trumpler 14 spans about 40 light years and lies about 9,000 light years away on the edge of the famous Carina Nebula. A discerning eye can spot two unusual objects in this detailed 2006 image of Trumpler 14 by the Hubble Space Telescope. First, a dark cloud just left of center may be a planetary system trying to form before being destroyed by the energetic winds of Trumpler 14’s massive stars. Second is the arc at the bottom left, which one hypothesis holds is the supersonic shock wave of a fast star ejected 100,000 years ago from a completely different star cluster.
说明：为什么星团的川普勒14有这么多明亮的星星？因为它太年轻了。许多星团只是在过去的500万年中才形成，它们非常热，会发射出可探测到的X射线。在较老的星团中，大多数年轻的恒星已经死亡——典型的是在超新星中爆炸——留下的是更暗更红的恒星。川普勒14号跨度约40光年，位于著名的船底座星云的边缘，距离我们约9000光年。在这张由哈勃太空望远镜拍摄的2006年川普勒14号的详细照片中，敏锐的眼睛可以发现两个不寻常的物体。首先，刚刚离开中心的一片乌云可能是一个行星系统，试图在被川普勒14的大质量恒星的能量风摧毁之前形成。第二是左下角的弧线，其中一个假设认为，那就是距今10万年的一颗快速恒星从一个完全不同的星团中射出的超音速冲击波。 |
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