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Second black hole image captured | 第二张黑洞照片公布

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2022-05-25 17:09 来源: ChangjiangWeekly
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  Three years after the first black hole image captured by humans was unveiled in 2019, the Event Horizon Telescope (EHT), a global network of synchronized radio observatories, released a second photo of a black hole on May 12. This time the supermassive black hole is closer to the earth, located at the center of our own Milky Way galaxy.
  3年前,事件视界望远镜(EHT)合作组织发布人类拍摄的首张黑洞照片。5月12日,第二张黑洞照片公布,而这个黑洞离我们更近,是位于我们银河系中心的超大质量黑洞。


  Second black hole photo Photo source: EHT
  The photographic work gathered more than 300 researchers from 80 research institutions around the world. They included Professor Wu Qingwen, Executive Deputy Dean of the Department of Astronomy at HUST and the only researcher from Wuhan. He has studied the theories of black holes for more than 20 years and engaged in relevant analysis in producing the two black hole images.
  拍摄工作集结了来自全球80个研究机构共300多名研究人员,华中科技大学天文系常务副主任吴庆文教授是成员之一,也是武汉唯一参与其中的科学家。他研究黑洞活动相关理论研究二十余年,在两次黑洞照片拍摄中从事相关理论分析工作。
  Wu stated that in order to achieve the telescope resolution capable of observing black holes, the EHT set up a global network of eight synchronized millimeter telescopes located in different high-altitude locations of the earth — including Mexico, the volcanic areas of Hawaii, the Sierra Nevada in Spain, the Atacama Desert in Chile, and the South Pole — and formed a virtual telescope with a diameter as long as that of the earth.
  吴庆文介绍,为了实现观测到黑洞的望远镜分辨率,EHT合作组织将分布在地球不同地方的八台毫米波望远镜联网,组成了相当于地球直径的虚拟望远镜,即视界望远镜。由于需要极高的灵敏度,这些望远镜分布在多个高海拔地区,包括夏威夷和墨西哥的火山、西班牙的内华达山脉、智利的阿塔卡马沙漠、南极点等。
  (Edited by Ye Shiyu) 

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