Unlike Earth, Jupiter’s nucleus is not solid. It is diluted. But its origin is debated. According to a study published in 2019, this is due to a collision with another planet during the formation of Jupiter. However, another more recent study undermines this theory.
Researchers at the University of Durham in the United Kingdom have evaluated the viability of such a stage. More specifically, they tested this theory with powerful computer simulations, in collaboration with NASA scientists, the Sti Institute and the University of Ohio.
Better understand the consequences of a collision
To carry out their research, they used the COSMA supercomputer (optimized system for instant memory algorithm), which is housed by the Institute of Computational Cosmology of the University of Durham. Used by cosmologists, astronomers and physical, it has simulated the evolution of the Big Bang universe until today.
Scientists have also used swift software. Available in open source, it offers “a set of galaxies and training models of planetary physics, as well as a wide range of examples.”
The simulations that led to “better understand what could have happened if a large planet would have collided with Jupiter,” Durham University said in a statement published on August 22. Because none led to the production of a diluted nucleus. Results that suggest that, even if such an impact had taken place, the center of the planet would not be as it is today.
“The heavy materials of Jupiter, after having initially mixed with the surrounding layers, would fall, forming a nucleus with a net edge,” explained the researchers. In other words, he would have reformed more or less quickly after the impact, they said.
New hypothesis
Of their simulations, scientists consider that Jupiter has not formed during a single spectacular event, such as a collision, but in a much longer period. According to them, their composition is linked to the way in which he absorbed heavy and light materials during his training.
Saturn’s core is also diluted, strengthening its “progressive training theory during the long process of growth and planetary evolution.” “These results have important implications for our understanding not only of Jupiter, but more widely giants,” the researchers rejoiced.
Source: BFM TV
