The SIT 45 system is about 473 million light-years away from Earth. This is an unusual isolated three, which consists of three late-type collapsing galaxies. Given that SIT 45 contains three interacting objects, scientists expected to see the complex dynamics and history of star formation.
The triplitudes of the galaxy are generally perceived as the star laboratories that are needed to study the formation and evolution of small and large galaxy systems. They are rather rare in the local universe, the search for new objects of this type and their detailed research are of great importance to astronomers.
A group of researchers led by Diana Grachales-Medin of Valencia International University in Spain examined the evolution of SIT 45, exploring its dynamic properties and configuration, as well as its local environment and large-scale structure, and analysed the data of various surveys, including Galaxy Evolution Explorer.
The study showed that SIT 45 is a highly isolated system in relation to its large-scale environment and one of the compact triplates in the SIT database. The value of its tidal force parameter, due to the members of the triplet, is one of the highest in the catalogue.
In studying SIT 45's history, the team found that star formation was continuing in the system and that one of the galaxies, SIT 45C, was particularly active. In general, three galaxies showed a recent increase in star formation.
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