Live
- State cabinet expansion by Dec 31: Ponguleti
- 2 Narayanites bag gold medals in IJSO-2024
- Jail superintendent suspended in ailing farmer handcuff incident
- CM Revanth orders probe into farmer’s handcuff incident
- Handcuffing of farmer after heart stroke draws BRS’ ire
- Jagga Reddy questions unilateral decisions of AICC in-charges in TG
- Tribal women to get trained in multiple skills
- GHMC vet officials raid mutton, chicken shops
- Rising egg prices set to turn Xmas cakes dearer
- 3-member committee formed to solve RTC workers’ issues
Simulation of universe with realistic galaxies created
An international team of astronomers has developed a simulation of the universe in which realistic galaxies are created. In the simulation, the mass, size and age are similar to those of observed galaxies. Their similarity is caused by the simulation of strong galactic winds - gas winds that are blown from galaxies.
London: An international team of astronomers has developed a simulation of the universe in which realistic galaxies are created. In the simulation, the mass, size and age are similar to those of observed galaxies. Their similarity is caused by the simulation of strong galactic winds - gas winds that are blown from galaxies.
“The universe generated by the computer is just like the real thing. There are galaxies everywhere, with all the shapes, sizes and colours I have seen with the world's largest telescopes. It is incredible,” said co-author Richard Bower from Durham University.The simulations took several months to run at the ‘Cosmology Machine’ in Durham and at ‘Curie’ in Paris, among the largest computers used for scientific research in Britain and France, respectively.
The galaxies formed in the EAGLE-simulation (Evolution and Assembly of GaLaxies and their Environments) are a much closer reflection of real galaxies thanks to the strong galactic winds, which blow away the gas supply needed for the formation of stars. EAGLE's galaxies are lighter and younger because fewer stars form and they form later.
In the EAGLE simulation, these galactic winds - which are powered by stars, supernova explosions and supermassive black holes - are stronger than in earlier simulations. “In the EAGLE universe, I can even press a button to make time run backwards,” Bower added. Astronomers can now use the results to study the development of galaxies from almost 14 billion years ago until now.
