Red and definitely not dead in the early Universe

IF 12.9 1区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS Nature Astronomy Pub Date : 2024-07-22 DOI:10.1038/s41550-024-02332-6

Morgan Hollis

引用次数: 0

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

红色，在宇宙早期绝对没有死亡

最近，在JWST的帮助下，天文学分类学中又多了一个新成员，那就是红移为3 < z < 9的神秘紧凑型尘埃衰减星系群，它们被称为 "小红点"（LRDs）。托尼玛-阿南娜及其同事分析了X射线观测数据，研究它们的发射是否主要来自活动星系核中吸积超大质量黑洞（SMBHs）的通量，或者是另一种更好的解释，比如与旺盛恒星形成相关的年轻恒星。研究小组利用钱德拉X射线天文台（Chandra X-rayObservatory）的超深度观测，观察了之前在JWST红外观测中发现的LRD，它们都位于透镜星系团Abell 2744的后方。在X射线数据中没有探测到单个的LRD，这使得作者能够将这些星系中超大质量黑洞的质量上限设定为≲ (1.5-16) × 106 M⊙（假设为爱丁顿限制吸积）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Nature Astronomy Physics and Astronomy-Astronomy and Astrophysics

CiteScore

19.50

自引率

2.80%

发文量

252

期刊介绍： Nature Astronomy, the oldest science, has played a significant role in the history of Nature. Throughout the years, pioneering discoveries such as the first quasar, exoplanet, and understanding of spiral nebulae have been reported in the journal. With the introduction of Nature Astronomy, the field now receives expanded coverage, welcoming research in astronomy, astrophysics, and planetary science. The primary objective is to encourage closer collaboration among researchers in these related areas. Similar to other journals under the Nature brand, Nature Astronomy boasts a devoted team of professional editors, ensuring fairness and rigorous peer-review processes. The journal maintains high standards in copy-editing and production, ensuring timely publication and editorial independence. In addition to original research, Nature Astronomy publishes a wide range of content, including Comments, Reviews, News and Views, Features, and Correspondence. This diverse collection covers various disciplines within astronomy and includes contributions from a diverse range of voices.

期刊最新文献

A supersolar oxygen abundance supported by hydrodynamic modelling of Jupiter’s atmosphere Sodium carbonates on Ryugu as evidence of highly saline water in the outer Solar System The first piece of Euclid’s cosmic puzzle Could the perfect stellar fly-by have shaped our Solar System? Complementary missions for Solar System exploration