Researchers study turbulence inside distant stars

(ORDO NEWS) — Stunning new images created by researchers at the University of Kiel show the turbulent flow of energy inside distant stars.

They were created using the PROMPI 3D modeling program, which scientists use to explore the interior of stars.

For years, scientists have used one-dimensional models to understand how stars work and how they evolve over time. But these models often give a very general view of the entire star rather than offering any detailed analysis.

New research by Dr. Federico Rizzuti is helping to make these models more accurate. Using hydrodynamic 3D modeling, it is possible to look at the star’s layers and chemical composition in much greater detail than was previously possible.

For this study, published in the Monthly Notices of the Royal Astronomical Society, the scientists used existing data from previous 1D models. The researchers focused on the layer where the neon burns.

The experts ran hydrodynamic simulations using the available data and looked at how fluids move within a layer, entrain materials from adjacent layers, and how they move between convective boundaries.

3D modeling offers an unprecedented degree of realism in recreating the environment within a star, but more importantly, it also highlights the limitations of current 1D models.

Thus, the results of the study can play a huge role in improving the accuracy of models, which, in turn, will help us understand how astronomical phenomena such as black holes, supernovae and neutron stars are structured.

“We live in amazing times. The computing resources that we have access to today enable simulations that were only a dream a few years ago.

Understanding what happens inside stars helps us shed light on many aspects of the universe in which we live, from the dynamics of our Sun to the most distant black holes,” commented lead author Federico Rizzuti.


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