An elliptical galaxy and a spiral galaxy appear as a single celestial body due to the effects of mass on space-time in the universe.
These two objects form a rare phenomenon called an “Einstein ring.” This is the result of light from a very distant galaxy being bent by a much larger galaxy that lies between it and the observer. This phenomenon shows that mass can warp light and space-time, but it is invisible on small scales.
However, when a large object like a galaxy or galaxy cluster bends light from a more distant galaxy, we can see this phenomenon clearly, as in this image.
A central elliptical galaxy is surrounded by light from a spiral galaxy, forming an "Einstein ring" due to gravitational lensing. (Image: ESA/Webb, NASA & CSA, G. Mahler)
The elliptical galaxy at the center of the Einstein ring belongs to the galaxy cluster SMACSJ0028.2-7537. It appears as a faint oval halo surrounding a small bright core.
The lensed spiral galaxy around the elliptical galaxy appears as a bright ring, with blue bands extending in a circular pattern, due to the bending of its spiral arms.
This image was created from data from the James Webb Space Telescope, as part of the "Strong Lensing and Galaxy Cluster Evolution" (SLICE) survey led by Guillaume Mahler at the University of Liège (Belgium).
This survey aims to study 8 billion years of galaxy cluster evolution by observing 182 galaxy clusters with Webb's near-infrared camera.
Additionally, this image combines data from two Hubble Space Telescope instruments: the Wide Field Camera 3 and the Advanced Camera for Surveys.
Ha Trang (according to NASA, ESA, CSA, Space.com)
Source: https://www.congluan.vn/kinh-vien-vong-james-webb-chup-duoc-canh-hai-thien-ha-tao-ra-vong-einstein-tuyet-dep-post340646.html
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