no code implementations • 29 Jun 2023 • Sihao Cheng, Rudy Morel, Erwan Allys, Brice Ménard, Stéphane Mallat
In this paper, we introduce scattering spectra models for stationary fields and we show that they provide accurate and robust statistical descriptions of a wide range of fields encountered in physics.
no code implementations • 30 Nov 2021 • Sihao Cheng, Brice Ménard
Extracting information from stochastic fields or textures is a ubiquitous task in science, from exploratory data analysis to classification and parameter estimation.
no code implementations • 7 Aug 2020 • María E. Camisassa, Leandro G. Althaus, Santiago Torres, Alejandro H. Córsico, Sihao Cheng, Alberto Rebassa-Mansergas
In this study we find that the energy released by $^{22}$Ne sedimentation in the deep interior of ultramassive white dwarfs with CO cores and high $^{22}$Ne content is consistent with the long cooling delay of these stellar remnants.
Solar and Stellar Astrophysics
no code implementations • 28 Jul 2020 • Vedant Chandra, Hsiang-Chih Hwang, Nadia L. Zakamska, Sihao Cheng
The mass-radius relation of white dwarfs is largely determined by the equation of state of degenerate electrons, which causes the stellar radius to decrease as mass increases.
Solar and Stellar Astrophysics Astrophysics of Galaxies
1 code implementation • 29 May 2019 • Sihao Cheng, Jeffrey D. Cummings, Brice Ménard
We show that, in addition to crystallization and merger delays, an $8$-Gyr cooling delay is required on the Q branch, which affects about $7\%$ of high-mass WDs.
Solar and Stellar Astrophysics Astrophysics of Galaxies High Energy Astrophysical Phenomena