Astronomers discovered a rare unified system of at least the five galaxies only interacted 800 million years after a major explosion. The opening is made with James Webb (JWST) and previous space – Hubble telescope. Details are published in the Journal of Natural Astronomy.
Merging the galaxies is a main process of forming major galaxies in the first universe. Typically, the interactions of the two galaxies are recorded, while the system is called Quintet JWST consolidated the year of the Galaxy and 17 stars.
The discovery of such a system with the five galaxies connected physically is extremely rare, both in terms of observation and modern models, he explained Weida Hu from the University of Texas A&M University.
The Quintet galaxies are such galaxies with radiation lines: their light contains light signatures of hydrogen and oxygen, showing the formation of stars. JWST data shows that galaxies are not by chance, but are physically connected in a system, proving the overall gas layer. The redness, the measure of the remote and the age of the objects, confirmed that they belong to the first universe.
The galaxy galaxy is relatively small: the two main galaxies are divided by about 43 thousand years of light, the furthest steam is about 61 thousand light -years. To compare, the diameter of the galaxy is about 100 thousand light -years.
Christopher Conselis from the University of Manchester said the intimacy of the space shows that the galaxies are capable of consolidating.
Quintet JWST is similar to local Stefan – the unity of four galaxies with fifth, nearby but not consolidated. However, Quintet JWST has a high speed star due to the abundance of gas. The total star mass of the system is about 10 density of solar energy and scientists think that after 1-1.5 billion years, the galaxies will merge into a huge galaxy.
Early mergers involving more than two galaxies are extremely rare: It is estimated that less than 1%is found in the first universe. This makes the discovery of a unique group to study the motivation of the formation in the first billions of years after the big explosion.
The study of the JWST site helps to understand the big sleeping galaxies of Muslims who have appeared in the universe – who no longer proactively create new stars. Astronomical physics shows that their rapid growth can occur exactly due to the consolidation of smaller star systems in the early stages of space development.
The scientists emphasized that the JWST image offers the detailed forms and structures of the objects, but to accurately analyze the properties, such as chemical composition, the movement of gas and dynamics of the system, spectrum data is necessary.
These observations show that the first universe is dynamic and full of interactions that form the galaxies in the future, he concludes Hu.