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为什么超大质量黑洞如此之大？他们疯狂地吞食星星。_我的网站

A | 北京时间1月16日，据外媒报道，天文学家对超大质量黑洞的形成有了新的认识。    (ECNS) -- The 34th Guangzhou Expo, underway in Guangzhou, Guangdong Province, put sci-tech innovations and mountain-region specialties on display Saturday, serving as a platform for east-west cooperation that links the Greater Bay Area with Zunyi in Guizhou Province and the Three Gorges Reservoir Area in Chongqing.        At the Tianhe venue, a pair of smart glasses drew some of the largest crowds. The device uses eye tracking and vital-sign monitoring to allow contact-free interaction, and it also offers simultaneous interpretation with AI-generated voice cloning in real time.    Other exhibits included an AI-assisted system for preliminary diagnosis, designed to ease the strain on medical resources; virus-free seed potato breeding techniques aimed at securing crop yield and quality; and consumer products made from ingredients classified as both food and medicine. All were developed through collaboration among companies, universities, and research institutes, turning laboratory results into everyday applications.    Guangzhou's Tianhe District, which has placed sci-tech innovation high on its agenda, is building an innovation hub for the Greater Bay Area. Alongside the technology on show, the expo helped match products with buyers under east-west paired-assistance programs.    The Zhuhai-Zunyi session of the Guangzhou Consumption-Assistance Exhibition featured nearly 100 specialty goods from the eight Zunyi counties that receive paired support. One brand zone used displays and on-site tastings to show how a national supply-chain center for new-style tea drinks is taking shape and how Zunyi's tea industry is changing as a result.    The center, built jointly by Zhuhai and Zunyi, has doubled the added value of Zunyi tea. Official figures show the city's new-style tea drink industry reached an output value of 1.005 billion yuan (about $139 million) in 2025, up 40% year on year, with local tea farmers among the beneficiaries.        Zhuhai Agricultural Control Group has arranged talks with buyers across the Greater Bay Area to widen market access for premium farm produce from Zunyi.    In Daozhen Autonomous County, Guizhou Province, Zhuhai-Zunyi cooperation has brought in 107 million yuan in east-west paired-assistance funding, and the output value of local industry has risen sharply since 2021.     Companies and cultural tourism operators from Chongqing's Three Gorges Reservoir Area attended the expo as a delegation for the first time, a significant step for the region's signature industries in reaching the national market.    Guangzhou has supported the Three Gorges Reservoir Area through paired assistance for years. Exhibits covering both technology and cultural tourism also underlined the region's push for green development.    Officials from the Three Gorges Reservoir Area said they would build on the exhibition to deepen ties with Guangzhou and other Greater Bay Area cities, and would take part in trade fairs and promotional events in the bay area on a regular basis.    (By Helen Mo and intern Xu Wenda)                    。他们发现黑洞可以残酷地吞噬恒星。

B | 目前，首次探测到“恒星吞没事件”。2017年2月，“全空间超新星自动调查”发现了恒星吞噬现象，并将其命名为“2017bgt”。

C | 这一事件被认为是吞咽恒星事件或“潮汐崩溃事件”，因为黑洞周围的辐射比2004年观测到的要亮50倍以上。然而，在使用多个望远镜进行了广泛的观察之后，研究人员现在相信这是一种“黑洞进食”的新方法。领导这项研究的以色列特拉维夫大学的本尼·特拉赫滕布罗特博士说：“AT 2017bgt事件的突然亮起提醒我们潜在的潮汐引力。

D | 但我们很快意识到这次有点不寻常。这项研究目前发表在《自然天文学杂志》上。第一条线索是轻添加剂，这在这次潮汐事件中从未被发现。负责数据收集的Akawi博士强调，我们已经用太空望远镜和地面望远镜观测了这一事件一年多，我们所看到的与我们以前看到的完全不同。这些观察结果与特拉维夫大学的哈盖·内泽尔教授的理论预测相一致，他说：“早在20世纪80年代，我们就预言了一个吞噬周围气体的黑洞会产生轻元素。”特拉克滕勃罗特博士总结说，我们还不确定BLAC突然增加的确切原因。K孔“进料速度”。有许多方法可以加速大黑洞的快速增长，而大黑洞通常发生在较长的时间尺度上。

E | 我们想探测更多这样的事件，并通过几个共同工作的望远镜跟踪它们。来自美国、智利、波兰和英国的天文学家使用三种不同的空间望远镜，包括安装在国际空间站上的新的更好的望远镜，参与了观测和分析任务。最后，研究小组确定了另外两个最近报告的黑洞“开放事件”，这些黑洞的辐射特性与AT 2017bgt非常相似。

F | 目前科学界有两种关于超大质量黑洞诞生的理论。

G | 一个假设是，当一颗大质量恒星坍缩时，“黑洞种子”从一个质量约为太阳质量10-100倍的黑洞中发芽。然后，黑洞的种子通过与其他小黑洞合并并吸收周围的气体而长大。但它们必须以惊人的速度成长，才能达到数十亿年前在年轻宇宙中发现的超大质量黑洞的质量。最近发表的另一项研究支持这一假设，这表明至少有一些非常大的黑洞种子，其质量是太阳质量的10万倍，并且是在巨大的气体云坍塌时直接形成的。在这种情况下，黑洞的增长将开始跳跃，而且非常快。

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