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"Hubble" photographed one of the most distant clusters of galaxies

07.05.2018
Science, Space

Orbital observatory "Hubble" received photos of a giant cluster of galaxies RXC J0032.1 + 1808 in the constellation Pisces, which is among the 40 most remote and ancient "families" of stars in the surrounding Universe.
This was reported by the site of the space telescope.

Most of the galaxies in the universe, like the Milky Way itself, are part of larger clusters of matter, clusters and superclusters of galaxies. Many of them, as the observations of recent years show, stretch for millions and tens of millions of light years and have a mass of tens and hundreds of trillion solar masses.

Many of them, including the RXC J0032.1 + 1808, whose photograph Hubble received recently, are located so far from the Earth and the Milky Way that they can be seen only with the help of gravitational lenses - special space-time distortions that enhance light and arising in the vicinity of large galaxies.

Using such lenses, scientists can monitor the movement of galaxies inside the RXC J0032.1 + 1808 and other "families" of star metropolises. Such observations have already helped astronomers find the two largest structures in the universe that affect the motion of the Milky Way and other nearby galaxies.

These included the so-called Great Attractor (supercluster of the galaxies Abell 3627) and the Great Rejector - a giant emptiness region, located behind our galaxy. The study of these objects, including with the help of Hubble, has already helped astronomers understand why the Milky Way moves unusually fast with respect to other galaxies, and reveal some secrets of the history of the formation of these giant objects.

Now, "Hubble" is conducting a kind of census of the largest clusters of galaxies of the universe, receiving their detailed photographs within the framework of the project RELICS. These data, as the scientists hope, will help to get the first accurate estimates for the mass of dark matter and understand how the "dark ages" ended at the dawn of the youth of the universe when it was opaque to visible light and other forms of electromagnetic waves.

In addition, the study of ancient clusters of galaxies, as cosmologists hope today, will help us understand how dark matter and dark energy play their role in their formation and life, and also how their structure and distribution in the universe are related to the distribution of matter over the universe in the first moments after the Big Bang.

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