A young galaxy that looks old

A young galaxy that looks old and thus confuses astronomers.

Astronomers have discovered a galaxy that confuses them and questions theories about their formation. This case concerns a galaxy called ALESS 073.1, whose light comes to us from an event when the universe was only 1.2 billion years after the Big Bang (the current estimate of the age of the universe is 13.7 billion years). This makes this galaxy a young galaxy, even if it doesn’t look like it at first glance. This is because, according to observations, the galaxy is stable and very advanced due to its age, thus confusing scientists, as they did not expect to find a galaxy that went beyond the theories of its formation.

In a recently published study, astronomers were able to create one of the sharpest images of the galaxy, ALESS 073.1, which allowed them to examine its properties in detail. This cosmic object has a massive core of stars in the center, also called a bulge. A stable and even disk, formed by stars, rotates around this bulge. But scientists expected this galaxy to take billions of years to form.

This means that the process of galaxy formation is ultimately faster than expected. This should help explain the formation and formation of the galaxy ALESS 073.1. At the same time, thanks to this galaxy, current theories of the origin of these cosmic objects are questioned. Scientists were helped by this discovery by the ALMA (Atacama Large Millimeter / submillimeter Array) – an observatory that monitors wavelengths outside the visible spectrum and can therefore observe cosmic objects that we do not otherwise see.

Source: IFLScience!,


Source: Technológie by pc.zoznam.sk.

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