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单词 Gravitational Lenses
释义

Gravitational Lenses

原声例句
科学60秒-科学美国人 2023年8月合集

And, among other things, the result from Vanzella's team is showing just how enormous the boost to JWST can be from galaxy-cluster gravitational lenses.

此外,范泽拉团队的研究成果还显示了星系团引力透镜对詹姆斯韦伯望远镜的巨大推动作用。

科学60秒-科学美国人 2023年8月合集

The other team, led by Eros Vanzella at the National Institute for Astrophysics in Italy, used a massive galaxy cluster as a starlight-magnifying " gravitational lens" to zoom in on a tiny background galaxy from about 800 million years post-big bang.

另一个研究小组由意大利国家天体物理研究所的埃罗斯·范泽拉领导,他们利用一个巨大的星系团作为星光放大的" 引力透镜" ,来放大大爆炸后形成的、约 8 亿岁的一个微小背景星系。

英语百科

Gravitational lens

Gravitational lensing - intervening galaxy modifies appearance of a galaxy far behind it (video; artist's concept).
This schematic image shows how light from a distant galaxy is distorted by the gravitational effects of a foreground galaxy, which acts like a lens and makes the distant source appear distorted, but magnified, forming characteristic rings of light, known as Einstein rings.
An analysis of the distortion of SDP.81 caused by this effect has revealed star-forming clumps of matter.

A gravitational lens refers to a distribution of matter (such as a cluster of galaxies) between a distant source and an observer, that is capable of bending the light from the source, as it travels towards the observer. This effect is known as gravitational lensing and the amount of bending is one of the predictions of Albert Einstein's general theory of relativity. (Classical physics also predicts bending of light, but only half that of general relativity's.)

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更新时间:2025/6/24 0:57:41