Light from the very distant spiral galaxy was bent and expanded by the gravity of the members of the Galaxy Cluster SMACSJ0028.2-7537 to form a ring-like structure known as the Einstein ring.
This composite image combines data from Webb’s near-infrared camera (Nircam), Hubble’s Widefield Camera 3 (WFC3), and advanced cameras for survey (ACS) equipment, showing Einstein’s rings around the elliptical galaxy of the Galaxy Cluster. Image credits: NASA/ESA/CSA/Webb/G. Mahler.
Einstein RingAlso known as Einstein-Chwolson Rings or Chwolson Rings, occurs when light from very distant objects bend around a large intermediate object.
“This is possible because space-time, the fabric of the universe itself, is bent by mass, so light passing through space and time is also bent,” said Guillaume Mahler, an astronomer at the University of Ligiju and a colleague.
“This effect is too subtle to observe at a local level, but dealing with the curvature of light on a huge astronomical scale can make it clearly observable.”
“When light from one galaxy is bent around another galaxy or cluster of galaxies.”
“If the lensed and lens objects are perfectly aligned, the result is a unique Einstein ring.”
“This will appear as a complete circle or a partial circle of light around the lens object, depending on the accuracy of the alignment.”
“Objects like this are the ideal laboratory for studying how galaxies are so faintly far away.”
New images were captured by Webb’s Nircam (near infrared) instrument As part of Powerful lens and cluster evolution (slice) investigation.
“The lens galaxy at the heart of this Einstein ring is an oval galaxy that can be seen by the galaxy’s bright core, smooth, uncharacteristic body,” the astronomer said.
“This galaxy belongs to a galaxy cluster named smacsj0028.2-7537.”
“Galaxies with lenses wrapped in elliptical galaxies are spiral galaxies.”
“The image is distorted as the light travels around the galaxy in its path, but the individual star clusters and gas structures are clearly visible.”
Source: www.sci.news
