The “hierarchical model of galaxy formation” describes, to a lesser extent technically, the principle of “big eats small”: large galaxies grow together with smaller galaxies. Researchers working with Alessio Muciarelli of the University of Bologna have tested the principle of “eating small meals” using the large galactic cloud, now a satellite galaxy in our own Milky Way galaxy. Their conclusion: Yes, initially small galaxies such as the large Magellanic cloud also grow by merging one or another dwarf galaxy. Study Appears in “Natural Astronomy” magazine.
The Great Magellanic Cloud is well known to the inhabitants of the Southern Hemisphere, where they can be seen with the naked eye between galaxies and table mountain galaxies. It is 163,000 light years away from us. She came to some astronomical significance, When a supernova erupted inside her in 1987, The next supernova eruption seen in modern times.
Astronomers can use a variety of methods to determine if a galaxy is aligned with another galaxy. Evidence, for example, provides stellar currents, i.e. a group or loose collection of stars moving at the same speed in the same direction. In 2018, researchers proved that about ten billion years ago In fact the neighboring galaxy entered our Milky Way. The data required for analysis were previously available By Kaya Mission Collected For their study of the Great Magellanic Cloud, the team around Musearelli could not access stellar currents or Gaya data. instead of this Studied them in global clusters Objects that can escape from a galaxy collision. In addition, the chemical composition and abundance of elements in global clusters are very common to their home galaxy. A spherical cluster from a once-swallowed galaxy must be distinguished from a spherical cluster formed by a large macelanic cloud.
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