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IF 12.9 1区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Nature Astronomy Pub Date : 2025-04-11 DOI:10.1038/s41550-025-02481-2

引用次数: 0

摘要

仙女座星系周围环绕着一群矮星系，它们的排列方式非常不对称。对宇宙学模拟的分析表明，这种程度的不对称只出现在 0.3% 的类似星系中，因此仙女座星系在当前的宇宙学范式中是一个引人注目的异常点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Andromeda’s lopsided galaxy system challenges standard cosmology

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Andromeda’s lopsided galaxy system challenges standard cosmology

The Andromeda galaxy is surrounded by a constellation of dwarf galaxies that are arranged in a highly lopsided manner. Analysis of cosmological simulations reveals that this degree of asymmetry is found in only 0.3% of similar systems, painting Andromeda as a striking outlier in the current cosmological paradigm.

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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.