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Lumina cosmological simulation development

Overview

An international research team, including scientists from Harvard, MIT, and the Smithsonian, has developed Lumina, a high-resolution cosmological simulation designed to reconstruct the first 2 billion years of the universe. Utilizing the Frontier supercomputer at Oak Ridge National Laboratory and over 15,000 GPUs, the model tracks interactions between gas, light, and dark matter across a volume of approximately 1.5 billion light-years per side.

The simulation is roughly 100 times larger than previous comparable models. It captures critical processes such as the reionization of hydrogen and helium, suggesting that while early stars drove hydrogen reionization, high-energy radiation from supermassive black holes likely fueled helium reionization. Researchers also propose that frequent star collisions in dense early clusters may have created massive stars that collapsed into large black holes.

Lumina serves as a tool for astronomers to compare theoretical predictions with observational data from the James Webb Space Telescope and the Nancy Grace Roman Space Telescope to refine understandings of cosmic evolution.

Entities

James Webb Space Telescope · LUMINA · Oak Ridge National Laboratory · Harvard University · University of Texas at Dallas

Timeline

  1. [TECHNOLOGY] 3 sources
    MIT and Harvard researchers develop Lumina universe simulation

    MIT and Harvard scientists have launched Lumina, a massive supercomputer simulation modeling the universe’s first 2 billion years to study cosmic evolution and dark matter.

  2. [TECHNOLOGY] 25 sources
    Lumina simulation recreates the universe’s first 2 billion years

    The Lumina simulation uses 15,000 GPUs to model the first 2 billion years of the universe, capturing key processes like hydrogen and helium reionization and the formation of early galaxies.

Sources

actualidad.rt.com · archive.in.gr · astrobitacora.com · bake-shop.com · ciencias.uy · futura-sciences.com · groupe23.com · hothardware.com · in.mashable.com · japan.cnet.com · knowridge.com · kulturegeek.fr · media.inaf.it · meteoweb.eu · n-tv.de · nationalgeographic.com.es · novini247.com · popsci.com · reviews.cnet.com · sciencedaily.com · scinexx.de · thedebrief.org · udaipurkiran.com · veja.abril.com.br · vita.gr · world-today-journal.com · wwj.co.jp