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黑洞撕碎行星！万年罕见的“宇宙大屠杀”被拍到了
2019-09-28 13:04
【文/观察者网 徐蕾】
黑洞撕裂行星，这上万年才发生一次的“宇宙大屠杀”，有生之年，竟然被我们见到了。
据美国哥伦比亚广播公司（CBS）当地时间9月27日报道，美国国家航空航天局（NASA）用最新的望远镜捕捉到了罕见的“宇宙大屠杀”：一个黑洞猛烈地撕碎了一颗和太阳差不多大小的恒星。
该现象是研究人员在今年1月捕捉到的，研究结果于9月26日发表在《天体物理学杂志》（The Astrophysical Journal）上。
NASA称，天文学家认为这个超大质量黑洞的质量约为太阳质量的600万倍，位于约3.75亿光年之外的星系，该星系与银河系大小相似。而被吞噬的行星则与太阳大小类似。
行星先是从远处而来，不断接近黑洞：
随后，表面看似平静无波的黑洞散发出巨大的威力，将行星吸附在其周围，撕碎成粉末：
图源：NASA
这一现象被称为“潮汐破坏事件”（tidal disruption event），恒星必须非常靠近黑洞才能发生，因此十分罕见。研究人员表示，在银河系大小的星系中，这种宇宙事件每1万到10万年发生一次。由于宇宙中有数十亿个星系，科学家们多年来已经观测到大约40次这样的“宇宙大屠杀”，只不过，想要捕捉画面很难，这次观测结果是“迄今为止对这一现象最详细的观察”。
俄亥俄州立大学天文学教授克里斯·科查内克（Chris Kochanek）惊叹道，能在视线范围内发生这样的事件是多么幸运。他这样比喻此事的罕见程度：“想象一下，你站在市中心的一座摩天大楼顶上，你从楼顶扔下一颗石头，你想让它从井盖的洞里掉下去。这比那更难。”
在微博，网友们也热烈讨论起了这有生之年……
这个比喻给满分，不怕你骄傲：
很多网友都在感叹人类的渺小，直到小编发现这条评论↓
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The black hole shreds the planet! The rare "Cosmic Massacre" was photographed.
2019-09-28 13:04
[Text / Observer Network Xu Lei]
The black hole rips the planet, the "cosmic massacre" that only happened once in 10,000 years. It was actually seen by us in our lifetime.
According to a report by CBS on September 27, the National Aeronautics and Space Administration (NASA) captured the rare "cosmic massacre" with the latest telescope: a black hole violently shredded a sun The size of the star.
The phenomenon was captured by researchers in January this year, and the results were published in the Astrophysical Journal on September 26.
According to NASA, astronomers believe that the mass of this supermassive black hole is about 6 million times the mass of the sun, and is located in a galaxy about 375 million light years away. The galaxy is similar in size to the Milky Way. The planets that are swallowed are similar in size to the sun.
The planet first comes from a distance and keeps approaching the black hole:
Subsequently, the seemingly calm, waveless black hole exudes tremendous power, absorbing the planet around it and shredding it into powder:
Source: NASA
This phenomenon is known as the "tidal disruption event", and stars must be very close to the black hole to occur, so it is very rare. The researchers say that in the Milky Way-sized galaxies, this cosmic event occurs every 10,000 to 100,000 years. Because there are billions of galaxies in the universe, scientists have observed about 40 such "cosmic massacres" over the years. However, it is difficult to capture images. This observation is "this phenomenon has been done so far. The most detailed observation."
Chris Kochanek, a professor of astronomy at Ohio State University, exclaimed how lucky it was to be able to see such an event within sight. He likened the rareness of the matter: "Imagine you are standing on top of a skyscraper in the city center, you throw a stone from the top of the building, you want it to fall from the hole in the manhole. This is better than That is even harder."
On Weibo, netizens also enthusiastically discussed this life...
This metaphor gives full marks, not afraid of your pride:
Many netizens are lamenting the smallness of human beings until Xiaobian discovers this comment↓
Weibo screenshot
