Alex Cameron and Dean Fisher of ASTRO 3D and their colleagues used instruments from the WM Keck Observatory in Hawaii to note that what flows into a single galaxy is much cleaner than what flows out of it.

The exact results are there Available in pages Astrophysical Journal They point to the galaxy, Mrk 1486, which is about 500 light-years from Earth. A very dynamic star formation process is currently being observed in its region.

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Huge clouds of gas are drawn into galaxies and used in the process of star formation. It consists of hydrogen and helium. […] Using a new piece of instrument called the Keck Cosmic Web Imager, we were able to ensure that stars forming from this gas would eventually push a huge amount of material out of their systems, primarily through supernovae. But this substance is no longer beautiful and clean – it contains many other elements, including oxygen, carbon and iron.

Dean Fisher, Swinburne University

Mrk 1486 has proven to be an ideal observing object because it is oriented towards Earth in such a way that the gas flowing from it can be easily seen and its composition assessed. This alignment is very rare, and most galaxies are at an angle that prevents this type of search. As far as the process of flowing matter into galaxies Referred to as accumulation, so in the opposite case, we are talking about outflows. It is an important mechanism that regulates the growth, mass, and size of galaxies.

Stars in the Merck 1486 galaxy spit out ‘polluted’ gas

However, it took many years to determine the differences between the flux of matter and the flux of matter into a galaxy other than the Milky Way. Alex Cameron, one of the lead authors of a new study on the topic, compares a galaxy to a spinning Frisbee. The gas enters “from the outside” and is relatively clean, then feeds the formation of new stars inside. When these stars explode, they spew out gases that are “contaminated” with other elements.

Read also: What do dying stars tell us about the universe?

These elements form deep in the core of stars through a process known as nuclear fusion. When the same stars collapse, the material emitted by them travels to outer space, where it creates layers that will be used in the future to create more stars or planets. Astronomers stress that their study is important because it helps them better understand the laws of galaxies and estimate how long they can survive.

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