Neutrinos are massless subatomic particles that influence the formation of galaxies.
In order for the origin and distributionSince neutrinos have become clearer to the scientific community, researchers have created a cosmological model: it accurately reflects the role of neutrinos in the evolution of the Universe. To do this, they first solved a system of Vlasov-Poisson equations for neutrinos with different assigned masses. The Vlasov-Poisson equation is a system of equations that describe the dynamics of a plasma of charged particles taking into account long-range Coulomb forces through a self-consistent field.
It was necessary to solve the equation in order tounderstand how particles move in the universe. This is how Japanese scientists were able to accurately represent the neutrino velocity distribution function and track its change over time.
Earlier models usedcertain approximations that could be wrong. In our work, we avoided these approximations by using a technique that accurately represents the neutrino velocity distribution function and tracks its evolution over time.
Koji Yoshikawa, lead author of the study and a researcher at the Center for Computational Science at the University of Tsukuba
As a result, it turned out that in areas whereThere are a lot of neutrinos, and there are usually massive clusters of galaxies. Another important conclusion: neutrinos suppress the clustering of dark matter and galaxies, and also change the temperature depending on their own mass.
Scientists hope that their work will help determine the mass of neutrinos.
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