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An Extended Closure Relation by LightGBM for Neutrino Radiation Transport in Core-collapse Supernovae

  • Authors: Shota Takahashi, Akira Harada, Shoichi Yamada

Shota Takahashi et al 2025 The Astrophysical Journal 986 .

  • Provider: AAS Journals

Caption: Figure 11.

Probability distributions of fluid velocity (“Fluid velocity (r)”) and the collinearity parameter (“collinearity parameter”) for neutrinos with the energy of 1.0, 8.5, 18.8, and 54.0 MeV. Each row corresponds to one of these neutrino energies. The data sets at 300 ms and 200 ms post-bounce are colored blue and orange, respectively. The histograms and kernel density estimation plots illustrate the statistical difference between these two data sets for each neutrino energy level. The value of the KL divergence is given in the plots to quantify the extent of the differences.

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