相约星期六

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。    Condolences have continued to pour in following the passing of veteran producer M Saravanan, widely known as AVM Saravanan of AVM Studios. Revered as a doyen of Tamil cinema, Saravanan breathed his last on Thursday at the age of eighty-six due to age related ailments. His death has left a profound void in an industry he helped shape for decades.A Studio Mourns Its Guiding PresenceFrom morning, AVM Studios saw a steady flow of celebrities arriving to pay their final respects. His mortal remains were placed on the premises, a place synonymous with cinematic milestones, and one that now also holds the weight of collective grief and gratitude. Tamil Nadu Chief Minister MK Stalin, veteran actor Sivakumar, Suriya, Rajinikanth, Vishal, and directors Vasanth and Parthiban were among those who placed garlands and offered condolences to his family.A visibly moved Sivakumar revisited the earliest chapter of his journey, recalling the moment Saravanan gave him the name by which the world would come to know him. “Saravanan introduced me to cinema in 1965 and changed my name to Sivakumar. To remember him and his good deed, I kept his name for my son Suriya as Saravanan,” he said. He also remembered a heartbreak from his early years, when a significant portion of his scene was cut from a film. “I remember crying in front of Manikkam theatre when my 500-foot-scene (in reels) was cut off from a film. AVM Saravanan consoled me, encouraged me to continue pushing through and said I would soon get a great role in films.”Actor Vishal joined the long line of voices honouring the producer’s influence. He recalled that AVM Studios had been a part of every phase of his life in cinema. “I remember meeting you as a kid, as an assistant director, as an actor, as a producer ever since I entered AVM studios which was a learning ground for me to be what I am today in the film industry.” Reflecting on Saravanan’s influence on the profession itself, he added, “Every producer used to look up to you for your sincerity and your dedication. I always wanted you and your production house to continue making great films but today we have lost another great film personality in Indian film industry. Your memories will always linger in our minds and your films will always be a learning ground for aspiring filmmakers.”          தமிழ்த் திரையுலகின் முதுபெரும் ஆளுமைகளில் ஒருவரும் வரலாற்றுப் புகழ்மிக்க AVM நிறுவனத்தின் முகமாகவும் திகழ்ந்த ஏவி.எம். சரவணன் அவர்கள் மறைவெய்திய செய்தியறிந்து மிகவும் வருந்தினேன். தமிழ்த்திரையுலகின் பாதையைத் தீர்மானித்து உருவாக்கியதில் ஏவி.எம். நிறுவனத்தின் பங்கு எவ்வளவு… pic.twitter.com/pzB90zbDYU     — M.K.Stalin - தமிழ்நாட்டை தலைகுனிய விடமாட்டேன் (@mkstalin) December 4, 2025     Filmmaker Parthiban shared his own heartfelt tribute, calling Saravanan the embodiment of humility and discipline. “Even when he folds his hands, when we look at him, we become humble and fearful looking at him. Until his name is here in the Earth, we won't lose the respect we have for him.” Connecting him to the legacy of AV Meiyappan, he said, “He is considered as a God for artists like us. Saravanan is also like that for us.” Parthiban recalled writing to him shortly after the release of Murattu Kaalai in 1980, believing Meiyappan’s spirit could finally rest with pride. He added that while the void Saravanan leaves cannot be replaced, he has spoken to the family about ensuring the AVM legacy continues through new productions.A Legacy Remembered by the Artists He RaisedThe Tamil film fraternity woke up on Thursday to the news of his passing, prompting tributes from all corners. Chief Minister MK Stalin shared a message on his official X handle, writing, “I was deeply saddened to hear about the passing of AVM Saravanan, one of the senior-most stalwarts of Tamil cinema and the iconic face of the historic AVM Studios. Just as AVM played a monumental role in shaping the direction of Tamil cinema, Mr Saravanan’s contribution to shaping the direction of AVM itself was equally immense.”Rajinikanth, who has a long association with the AVM banner, visited the studio and later addressed the media. Reflecting on their collaborations, he said, “He loved me a lot and was a well-wisher of mine. He stood by me when I went through difficult times. I have acted in nine films in AVM. All nine films emerged as big hits. It won't be an exaggeration if I say that the main reason for them becoming hits was Saravanan sir.” He described him as “a true example of a gentleman,” recalling his characteristic white attire and pure-hearted nature. Rajinikanth also noted how often Saravanan referred to his father affectionately as “Appachi.”          உங்கள் பெயர் சொல்லும் பிள்ளைகளில் ஒருவனின் அஞ்சலி : pic.twitter.com/XWNx731BJc     — Kamal Haasan (@ikamalhaasan) December 4, 2025     Kamal Haasan, whose association with AVM goes back to his childhood role in Kalathur Kannamma, shared a video message remembering the bond he shared with the producer. “The relationship I had with Thiru. AVM Saravanan is like the bond I shared with my brothers, Chandra Haasan and Charuhasan,” he said. He spoke of his early uncertainty about how to address the elders at the studio, and how, as he grew older, he understood the depth of respect they deserved. “Those confusions went away after I crossed 20 because I realised then that I should hold them with the same level of respect that I showed my father.” He ended by saying he shared in the grief of Saravanan’s family, especially MS Guhan.A Farewell Etched in Film HistoryFrom actors who found their names through him to superstars whose biggest hits arose from his banner, Saravanan’s imprint runs deep through Tamil cinema. AVM Studios continues to stand as a physical symbol of his legacy, but the true monument to his life lies in the careers he nurtured, the values he upheld, and the generations he shaped through quiet conviction.Also Read: PHOTOS: Shah Rukh Khan and Kajol Inaugurate DDLJ-inspired Statue in Leicester。他们发现黑洞可以残酷地吞噬恒星。目前，首次探测到“恒星吞没事件”。

B | 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。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。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。目前科学界有两种关于超大质量黑洞诞生的理论。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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