A population of red candidate massive galaxies ∼600 Myr after the Big Bang
A population of red candidate massive galaxies ∼600 Myr after the Big Bang
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DOI：
10.1038/s41586-023-05786-2
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发表时间：
2023-02-22
期刊：
影响因子：
64.8
通讯作者：
Wang, Bingjie
中科院分区：
文献类型：
--
作者：
Labbe, Ivo;van Dokkum, Pieter;Wang, Bingjie
银河系的恒星质量高达大约10（11）个太阳质量，已经被确定（1-3）到红移z大约为6，大约在大爆炸后10亿年。要在更早的时间找到大质量星系是很困难的，因为精确估算质量所需的巴耳末破裂区红移到了2.5 μ m以上的波长。在这里，我们利用詹姆斯韦伯太空望远镜早期发布的观测1-5 μ m的覆盖范围，在宇宙历史的第一个大约7.5亿年中寻找本质上的红色星系。在调查区域，我们发现六个候选的大质量星系（恒星质量超过10（10）太阳质量）在7.4
Galaxies with stellar masses as high as roughly 10(11) solar masses have been identified(1-3) out to redshifts z of roughly 6, around 1 billion years after the Big Bang. It has been difficult to find massive galaxies at even earlier times, as the Balmer break region, which is needed for accurate mass estimates, is redshifted to wavelengths beyond 2.5 mu m. Here we make use of the 1-5 mu m coverage of the James Webb Space Telescope early release observations to search for intrinsically red galaxies in the first roughly 750 million years of cosmic history. In the survey area, we find six candidate massive galaxies (stellar mass more than 10(10) solar masses) at 7.4