494. 首次观测到暗物质 episode artwork

EPISODE · Nov 30, 2025 · 15 MIN

494. 首次观测到暗物质

from 知为谁 · host 知为谁

东京大学的一份新闻稿公布了新的研究成果,表明科学家可能首次直接探测到自二十世纪三十年代以来一直只能通过引力效应间接观测到的暗物质存在的证据。天文学家Tomonori Totani教授使用美国宇航局(NASA)的费米伽马射线空间望远镜数据,在银河系中心附近发现了伽马射线信号,这些信号以类光晕结构的形式延伸。这些伽马射线具有20吉电子伏特(GeV)的能量,其能谱的特征与弱相互作用重粒子(WIMPs)——一种假定的暗物质组成粒子——湮灭时所释放的预测粒子相符。Totani教授认为,如果该结论正确,这将标志着人类首次“看见”暗物质,并可能意味着发现了标准粒子物理模型以外的新粒子。不过,研究人员指出,该发现的可靠性取决于其他科学家的独立验证,以确保这些辐射并非来自其他已知的常规天文现象。内容来源:https://www.u-tokyo.ac.jp/focus/en/press/z0508_00433.html

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494. 首次观测到暗物质

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