谜团：早期宇宙中的小红点
(原标题: Mystery: Little Red Dots in the Early Universe)
2025-12-24
浏览次数: 1504
这些小红点（lrd）是什么？没有人知道。去年，詹姆斯·韦伯太空望远镜在早期宇宙中发现了数百个lrd。尽管lrd非常微弱，但现在在为其他目的进行的深度观测中经常可以识别出lrd。关于lrd是什么以及它们的重要性，一场广泛的辩论正在激烈进行。可能的起源假设包括气体和尘埃云内的超大质量黑洞，年轻尘埃变红的星系中恒星形成的爆发，以及暗物质驱动的气体云。高亮的图片显示了六个几乎没有特征的lrd，它们被列入了发现它们的JWST项目，以及z，一个被称为宇宙红移的距离指示器。此外，我们正在附近的宇宙中进行搜索，试图找到以前的lrd今天可能是什么样子。
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What are these little red dots (LRDs)? Nobody knows. Discovered only last year, hundreds of LRDs have now been found by the James Webb Space Telescope in the early universe. Although extremely faint, LRDs are now frequently identified in deep observations made for other purposes. A wide-ranging debate is raging about what LRDs may be and what importance they may have. Possible origin hypotheses include accreting supermassive black holes inside clouds of gas and dust, bursts of star formation in young dust-reddened galaxies, and dark matter powered gas clouds. The highlighted images show six nearly featureless LRDs listed under the JWST program that found them, and z, a distance indicator called cosmological redshift. Additionally, searches are underway in our nearby universe to try to find whatever previous LRDs might have become today.