A ring in the distant Universe
NATURE ASTRONOMY（2020）
摘要
The detection of a ring galaxy at a redshift of z = 2.2, potentially a product of a past collision with a companion galaxy, provides new insights on ring formation and the evolution of disk galaxies in the early Universe.
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关键词
Astronomy and planetary science,Galaxies and clusters,Physics,general,Astronomy,Astrophysics and Cosmology
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