爱因斯坦环
引力透镜
型式强透镜微透镜弱透镜
强透镜系统
阿贝尔1689 • 阿贝尔2218CL0024+17 • Bullet ClusterQSO2237+0305 • SDSSJ0946+1006B1359+154 • QSO 0957+561
巡天
Strong: CLASS • SLACS (SDSS) Micro: OGLE Weak: DLS • Pan-STARRS • CFHTLS . DES • LSST • SNAP • DESTINY
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爱因斯坦环（英语：Einstein ring）是指一种由于光源发出的光线受到引力透镜效应的影响，而使观测所得的光源形状改变的现象。
原理
[编辑]爱因斯坦环是由广义相对论所预测的现象。
爱因斯坦环的大小是由爱因斯坦半径决定：
其中是万有引力常数，是透镜星体的质量。是光速，是透镜星体的角直径距离，是来源的角直径距离，是两者的角直径距离。
历史
[编辑]
参见
[编辑]
延伸阅读
[编辑]- Kochanek, C. S.; Keeton, C. R.; McLeod, B. A. The Importance of Einstein Rings. The Astrophysical Journal. 2001-01-20, 547 (1): 50–59 [2021-10-12]. ISSN 0004-637X. doi:10.1086/318350. （原始内容存档于2022-04-08） （英语）.
参考
[编辑]- ^ Loff, Sarah; Dunbar, Brian. Hubble Sees A Smiling Lens. NASA. 2015-02-10 [2015-02-10]. （原始内容存档于2015-02-11）.
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