This extraordinary image from the NASA/ESA Hubble Web page Telescope of the galaxy cluster Abell 2813 (additionally called ACO 2813) has a nearly composed beauty, which additionally illustrates the outstanding physics at work within it. The image spectacularly demonstrates the concept that of gravitational lensing.
Among the tiny dots, spirals, and ovals that are the galaxies belonging to the cluster, there are loads of distinct crescent shapes. These curved arcs of light don’t appear to be curved galaxies. They are stable examples of a phenomenon regularly called gravitational lensing.
Gravitational lensing occurs when an object’s mass causes light to bend. The curved crescents and “S” shapes are light from galaxies that lie beyond Abell 2813. The galaxy cluster has so mighty mass that it acts as a gravitational lens, bending light from extra far-off galaxies round it. These distortions can appear as many diversified shapes, corresponding to long lines or arcs.
This visual proof, that mass causes light to bend, is famously damaged-down as proof of Einstein’s concept of total relativity.
The image is a compilation of observations inquisitive in regards to the Hubble Web page Telescope’s Evolved Digital camera for Surveys and Huge Topic Digital camera 3.
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Hubble watches cosmic light bend (2021, April 18)
retrieved 19 April 2021
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