Supermassive black holes are mysterious bodies. Now a new preprint study is shedding light on Sagittarius A* by studying what ...

在银河系的中心，一个质量相当于430万倍太阳的超大质量黑洞——人马座A*，正以一种复杂而神秘的方式影响着宇宙的演化。它不仅吞噬着周围的物质，还通过强大的引力聚集气体和尘埃，为新恒星的诞生提供了关键条件。这个看似矛盾的现象，正在挑战人类对黑洞的传统认知。

下图是超大质量黑洞“人马座A*”（质量约为太阳的400万倍）的图像，位于人马座方向约2万7000光年外，以无线电波观测得到的数据为基础制作。国际研究团队“事件视界望远镜”(Event Horizon Telescope：EHT)于2024年3月27日公开了这一消息。 世界上8个地方的射电 ...

Early detection of Sagittarius A* (Sgr A*) relied on radio astronomy due to the obscuring dust in the galactic center, initially identified as a bright radio source in the Sagittarius constellation.

Until recently, black holes seemed to come in only two sizes: either as a single heavy collapsed sun, or else weighing the same as millions or even billions of stars. Small or large. Only in 2014 did ...