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The clearest picture emerges of galaxies heading for a collision on an intergalactic ‘highway’.

The clearest picture emerges of galaxies heading for a collision on an intergalactic 'highway'.

Northern Clump as it appears in X-rays (blue, XMM-Newton satellites), in visible light (green, DECam) and at radio wavelengths (red, ASKAP/EMU). Credit: Veronica et al. Astronomy and Astrophysics

A group of international astronomers has created an unprecedented detailed image of a galaxy cluster with a central black hole. travel at high speed along The discovery also supports existing theories about the origin and evolution of the universe.

Until recently, the idea that a thin gas road links galaxy clusters across the universe was difficult to prove. Because the story in these ̵

6;roads’ is so thin that it escapes the sight of even the most delicate tools. After the discovery of intergalactic filaments at least 50 million light years in length in 2020, scientists have developed an unprecedented level of detailed images of the northern galaxy cluster. which is a galaxy cluster found in this spiral

Combining images from various sources Including CSIRO’s ASKAP radio telescope, SRG/eROSITA, XMM-Newton and Chandra satellites, and DECam’s optical data, scientists were able to create large galaxies at the center of the cluster. with a black hole in the middle.

In an overnight press briefing, the eROSITA team at the University of Bonn presented observations of clusters which appeared to move at high speed, said Angie Veronica, lead researcher at the University of Bonn’s Argelander for Astronomy Institute.

Professor Andrew Hopkins of Australian Astronomical Optics, Macquarie University, who led the project, which supported data from ASKAP in the study, said: “The ASKAP telescope’s excellent sensitivity to faint radio emissions. is the key to detection. “The radio emissions from these supermassive black holes, the shape and direction of these jets, provide important clues to the motion of the black hole’s host galaxies.”

Professor Thomas Raiprich of the University of Bonn said: “We are currently interpreting this observation as the Northern Clump is losing matter as it travels. In the yarn will fall to the Northern Clump .”

Overall, the observations confirmed the theoretical view that the gas filament was a road of matter in space. The Northern Clump was moving along this road at high speed to two other galaxy clusters, Abell 3391 and Abell 3395.

Professor Raiprich said “It’s a fall into these groups and will continue to expand. as well as the principle of ‘Winner Takes All’ “What we see is a snapshot of that collapse.”

This observation is consistent with the results of the Magneticum computer simulation developed by the researchers of the eROSITA group, so it can be used to argue that current assumptions about the origin and evolution of the universe are correct. This includes the view that our measuring instruments cannot see most of the matter. It is believed that 85 percent of our universe is made up of this dark matter. in the standard model of cosmology It plays an important role as the merging nucleus that allows gaseous matter to condense into galaxies after the Big Bang.

Cosmic Web Topic: Astronomers Find 50-Million Light-Year-Old Galactic Filaments

Provided by Macquarie University.

reference: Clearest image emerges of galaxies heading towards collision on the intergalactic ‘highway’ (2021, June 29). Retrieved 29 June 2021 from https://phys.org. /news/2021-06-clearest-images-emerge-galaxies-collision.html

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