Galaxies Battle in ‘Cosmic Joust’ Witnessed by Astronomers for the First Time
- Astronomers observed two galaxies merging 11 billion light-years away in a phenomenon called the 'cosmic joust'.
- This observation occurred because advanced telescopes like ESO's VLT and ALMA revealed two galaxies previously seen as one.
- The active galactic nucleus at the center of the attacking galaxy emitted intense radiation that disturbed the molecular gas within the neighboring galaxy.
- Study co-lead Sergei Balashev noted that this marks a groundbreaking observation of how the radiation from a quasar influences the molecular gas within a neighboring galaxy.
- This finding provides rare insight into early galaxy evolution and star formation, while the team remains uncertain if such ‘cosmic jousts’ commonly occur in mergers.
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Star war: Galaxies battle in ‘cosmic joust’ witnessed by astronomers for the first time
Using combined observations from ground-based telescopes over nearly four years, the researchers saw the distant galactic neighbors charging toward each other at more than 1.1 million miles per hour.
·Oklahoma City, United States
Read Full ArticleAstronomers Intrigued by Galaxy Blasting Its Neighbor With Giant Energy Beam
As two distant galaxies trade blows in an ancient duel billions of years old, one belligerent has clearly proven itself more ruthless than the other. Each time the galaxies conclude their posturing and charge in for a clash, one of them impales its opponent with a powerful beam of radiation, crippling its ability to form new stars. In cosmic terms, it's the definition of a below the belt blow — and a massive one at that. This lopsided showdown w…
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