Astronomers have discovered a rare galaxy surrounded by a ring. PHOTO
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Astronomers have spotted an unusual galaxy at a distance of 56 million light years from Earth. It is surrounded by a large gas ring. This is reported by Science Alert. NGC 4632 was considered an ordinary spiral galaxy located near the Milky Way. However, a new study has shown that it belongs to galaxies with a polar ring. This type of galaxy has a ring of gas, dust, or stars around it that orbits at or near the poles. It is not known for sure how they are formed. The first assumption is that the ring material travels through the cosmic web until it enters the orbit of the galaxy. The second option is that the ring consists of material received by gravity from another galaxy. Combined radio and optical image of NGC 4632 Together with NGC 4632, another galaxy of this type was discovered – NGC 6156. telescopes. Galaxies with polar rings may be more common than previously thought,” said discovery co-author Nathan Daegh. So far, optical observations have detected polar rings around 0.5% of nearby galaxies. A more typical polar-ring galaxy, NGC 660 “Using ASKAP (a radio telescope system based in Australia – ed.) over the next few years, we expect to discover more than 200,000 hydrogen-rich galaxies, including many more unusual galaxies such as those with polar rings,” said astronomer Berbel Korybalski from the State Association of Scientific and Applied Research in Australia. NGC 4632 in the WALLABY survey (left) compared to an optical image from the DESI Legacy Survey (right) Scientists say this will help in the future to learn about the nature of polar ring galaxies. Hubble image of the polar ring galaxy NGC 4650A. The galaxy is a fuzzy dot in the middle. As we previously reported, the Webb telescope found evidence of an ocean on an exoplanet. Author: Alyona Pavlyuk Read also: 371 days above the Earth: an astronaut spent more than a year in space and became a new US record holder
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