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A | 外星人再次刷屏幕…昨天,媒体报道说,科学家发表了一篇论文说“在宇宙深处已经探测到神秘的无线电信号”,人们开始讨论宇宙深处的神秘信号是否应该得到响应。

Zhou Jiang, a researcher at the Sichuan Academy of Social Sciences, has a favorite book: White Deer Tableland or Bai Lu Yuan by renowned writer Chen Zhongshi.
As vice president of the Regional Science Association of China (RSAC), Zhou told the Global Times that a lifetime of reading has profoundly shaped the way he sees and understands the world. It ultimately led him to a career in research and academia, where he teaches and pursues scholarly work.
Since earning his PhD in economics in 2000, he has devoted himself to the study of regional science and economics, a field that demands a constant crossing of disciplinary boundaries, drawing on the fields of geography, sociology, history, and ecology among others.
"Reading has kept alive my sense of curiosity and taught me to ask questions with patience and persistence: Where do disparities in regional development come from? How do policies affect different groups in society? And how can a region pursue both efficiency and equity so that development is not merely effective, but also imbued with a greater sense of humanity and warmth?" Zhou noted.
Founded in 1991, RSAC is a national academic society dedicated to advancing domestic and international academic exchange and cooperation, providing consulting services on spatial planning, urbanization, and regional development, and offering intellectual support for China's modernization drive.
The 57-year-old researcher noted that reading has empowered him in two distinct ways.
"The first is discernment. When confronted with a complex issue, I try not to settle for a simple conclusion. Instead, I make an effort to understand its broader context, how it has unfolded, and the perspectives of the different people involved," he said.
"The second is a sense of inner steadiness. Setbacks are an inevitable part of both life and work. Good books remind us that hardship is never ours alone to bear; countless people before us have faced circumstances more difficult than our own, made difficult choices, and found the strength to carry on. Reading cannot solve every problem for us, but it can help us remain calm when challenges arise, giving us the clarity and resilience that allow us not to panic or give up too easily," he said.
Historical depth
Each time Zhou returns to the White Deer Tableland, he finds something different in its pages.
"When I first read it as a young person, I was drawn primarily to the characters and the twists and turns of their lives. Later, as I began researching regional economics, I found myself paying closer attention to the changes in the land, the countryside, families and social order presented in the story. Now, approaching 60, I have come to appreciate more deeply the choices the characters make, the constraints they face, and the quiet perseverance they show amid the sweeping currents of their times," he said.
White Deer Tableland uses Bai Lu village in Northwest China's Shaanxi Province as a microcosm, tracing the feuds and intertwined fortunes of three generations of the Bai (literally meaning white) and Lu families. Through their stories, it captures more than half a century of sweeping historical change, from the final years of the Qing Dynasty (1644-1911) to the 1970s and 1980s. The novel won the Mao Dun Literature Prize, one of China's top literature awards, in 1997.
Zhou prefers literary works with historical depth and a keen eye for social change.
Regional economics may appear to be concerned with the spatial distribution of industries, population and resources, but at its heart, it is about how people live on a particular piece of land, and why some places flourish while others decline, he noted.
In this sense, literature and history are more than pastimes beyond professional research. They often help him understand the historical context, cultural traditions and social mentality that lie behind economic data, he said.
When reading novels, Zhou said that he often pays close attention to the relationship between people and the places they inhabit: How the land shapes the local character, how transportation transforms a region, and how shifts in industry reshape families and villages. Such details may not offer a direct conclusion, but they broaden a researcher's perspective. They also serve as a reminder that research should look beyond growth rates and statistical indicators to consider the sense of fulfillment experienced by ordinary people and the dignity of human beings.
Understanding ourselves
Once, while tidying his study, he came across a book filled with notes he had scribbled in his early years. Among them was a question that particularly caught his attention: "In the face of sweeping changes in the times and profound social transformation, what can a person truly determine for himself?"
Looking at those words he had written in his youth was like coming face to face with the person he had been decades ago.
Reading is not simply the act of understanding a book; it is also a record of a person's own growth, he said. The same book can reveal something entirely different when read at different stages of life.
When we are young, we turn to books in search of answers; but when we become seasoned, we read more to understand life, to understand others, and ultimately, to better understand ourselves, Zhou said.
In this era of fragmented information, AI can help people access information quickly, organize materials, and gain a basic understanding of unfamiliar fields. Yet deep reading, Zhou said, allows people to see how a conclusion is reached — what evidence supports it, where its boundaries lie, and what alternative interpretations it may invite.
What truly shapes a person, after all, is not how much information they have browsed, but the words that have made them pause and reflect - and the words that have remained with them for many years, he added.
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B | 外星人来了吗?你转发信息时有“不回应”吗?但事实上,你理解这篇论文吗?根据1月9日在《自然》杂志上发表的两篇论文,加拿大不列颠哥伦比亚省的加拿大氢强度测绘实验(CHIME)射电望远镜在短短两个月内探测到多达13次新的快速射电爆发(FRB)事件。其中七个新发现的快速无线电风暴的频率接近400兆赫,这是迄今为止探测到的最低频率的频响。

C | 此外,一个FRB信号被重复,历史上只有一个FRB病例被重复。

D | 这次,特别的一点是信号已经重复了六次,这确实是一个值得注意的新发现。13快速无线风暴动画草图NRAO外展/T.Jarrett(IPAC/Caltech);B.Saxton,NRAO/AUI/NSF Highlight!本文所提及的FRB发现的主要意义在于,FRB的发现次数仅为60次以上。

E | 在13个新发现的FRB事件中,有的频率较低,有的是重复信号,相当于新类型信号的发现。它丰富了我们的快速无线电突发事件数据库,帮助我们了解FRB的性质。到目前为止,论文的结论是。要想出版这样一篇顶级的论文,就需要新的发现。如果只找到FRB事件,就不可能发表自然论文。本文的发现是基于对这些相对低频和重复信号的发现,没有任何与外星人有关的声明。所以关于宇宙深处这个神秘的无线电信号探测事件最有趣的事情是:这些信号是从哪里来的?我们不知道!在完全理解FRB之前,所有的可能性都存在。

F | 当然,外星人并非不可能,但可能性有多大?每时每刻,宇宙中各种天体都会发出各种电磁辐射。除了无线电波和微波,还有能量更高的辐射类型,如X射线和伽马辐射。宇宙中有一种神秘的现象,它发生得很快,放射出很高的能量,很快就消失了。它被称为“快速无线电爆发”(frbs),持续时间很短,通常只有几毫秒。

G | 这是一种银河系外的无线电波,其物理起源尚不清楚。它可以释放相当于太阳一整天释放的能量,因此它可以在数十亿光年之外。以上已经观察到,但它们的具体生产机制仍存在争议。有些人甚至认为这是外星人发出的信号。我们如何检测这些神秘的信号?你可以看到这段视频来说明为什么我们的理解如此模糊,主要是因为缺乏数据。自从2007年天文学家首次发现FRB以来,人类只记录了大约60次这样的事件。但近年来,相关案件数量迅速增加。探测到的FRB1121102是唯一一次观测到的重复性快速无线电风暴。此外,过去快速风暴记录的最低无线电频率是700兆赫。根据自然科学,在一篇论文中,CHIME/FRB合作项目报告了加拿大氢强度测绘实验(CHIME)仪器最近检测到的13次快速无线风暴,其中至少7次的频率为400兆赫(目前记录的最低频率)。妗FRB 180814.J0422 73位置。在另一篇论文中,CHIME/FRB合作项目最近检测到的13次快速无线电风暴的动态谱中,CHIME/FRB合作项目指出,在新检测到的快速无线电风暴中,一次名为FRB 180814.J0422 73的快速无线电风暴将反复爆发,只是第二次。作者报告了6次检测到的重复性疫情,这些疫情似乎来自同一地点。据估计,这些喷发起源于距地球15亿光年的地方,大约是另一次重复性风暴FRB1121102的一半。作者指出了两次重复的风暴之间的一些相似之处,或表明它们具有相似的辐射机制或传播效应。FRB 180814.J0422 73快速无线爆发的射频和时间图。

H | 当然,科学家并不完全不知道这些问题。例如,它们的起源以前被认为是来自遥远宇宙中的超新星爆炸,或者说是超大质量黑洞。

I | 英属哥伦比亚大学天体物理学家、钟声望远镜科学组成员英格丽德·斯泰尔斯说:“直到最近,我们只记录了一次FRB信号的重复。

J | ”他说:“随着更多的重复和源数据的出现,我们将有机会加深对这个宇宙的了解。是的,比如他们是从哪里来的?它们发生的原因是什么?哈佛-史密森天体物理中心的资深科学家阿维-勒布并未直接参与这项研究,但他对这项研究发表了评论,并表示,目前我们不能排除“人工起源”的可能性,例如来自外星航天器的脉冲信号,因为科学家观察到的FRB事件的数据是OT非常大,那么FRB事件的起源是什么?不可能给出明确而科学的解释。说到这一点,我们会立即联想到“三体”中的“不答,不答”。事实上,我们不能排除这是外星人发送给我们的信号。与刘慈新有媒体联系。他认为这种无线电波应该得到认真的响应。但许多类似的无线电波已被证明是自然现象,而不是外星生命。刘慈新还说,如果是他自己的,他可能暂时不回复,等待更多的信息收集后再做决定。

K | 无论如何,这些新发现的信号将帮助科学家更接近问题的最终真相。换言之,这是第二种情况的frb信号,它本身可以排除许多现有的遗传理论。

L | 这些重建的信号来自夜空中的同一点,估计距离地球约15亿光年,在几个月内重复6次。事实上,这种重复本身已经排除了一些灾难,例如超新星爆炸,因为恒星死亡时的最后一次爆炸只发生一次。此外,加拿大团队的新发现表明,frbs可能比以前想象的更常见,但我们目前的技术在检测方面可能仍然存在一些缺陷。另一个事实是,多达七个信号的频率只有400兆赫,这是历史上已知的最低频率,但这也是蜂鸣器可以检测到的最低频率限制。

M | 这意味着,如果频率较低的FRB通过地球,我们实际上无法探测到它们。

N | 欧盟国家天文台研究员陈雪莉说,这是加拿大编钟望远镜的一个重要新发现。中国团队开发的天震望远镜阵列与钟声非常相似。它具有很大的视场,非常适合搜索这种偶然信号。奇美尔成功地发现了许多FRB,这证明了这种望远镜的价值。在几年前发现第一个frb后,我们提出了开发frb数字处理终端进行frb搜索的希望。去年,在国家天文台前期研究基金的支持下,启动了一个小型实验系统。

o | 现在硬件已经生产出来了。预计今年上半年将安装在天基望远镜上。

p | 陈雪莉还说:“至于公众的强烈兴趣,可能是关注它是否是外星人发出的信号。这种可能性很小。这更有可能是一种自然现象。对以往发现的一次重复性风暴的爆炸规律进行了统计分析,发现其与地震规律相似。因此,我们假设它可能是由中子星的恒星冲击引起的。

q | 这一新发现的重复风暴将有助于我们进一步分析这一现象并检验我们的理论。这一发现的另一个亮点是,他们在较低的频率发现了frb,这是由诸如mwa和lofar等低频望远镜搜索到的,但没有被发现,因此一些人怀疑这种辐射只发生在较高的频率,这为其辐射机制提供了线索。但这一发现表明,这不一定是真的。由于嵌合体的观测频率仍高于Lofar和Mwa,所以这个问题还没有完全解决,但这表明FRB仍有很多研究。

r | 综上所述,科学家对探测宇宙深处神秘的无线电信号非常科学、专业和谨慎。目前,本文发表的观测资料甚至都不是证据。外星人的可能性应该是科学理论中最后一个。不管我们是否想回答外星人的问题,我们都不需要先考虑它,等待更多的观测数据,期待科学。家里真的能找到神秘宇宙信号的原因。

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Published on:10:45:37








