Chandrasekhar's H-function

Chandrasekhar's H-function is a special mathematical function that arises in the study of radiative transfer and astrophysics, particularly in the analysis of the scattering of radiation by particles. Named after the Indian astrophysicist Subrahmanyan Chandrasekhar, the H-function is crucial in solving specific integrals related to the transfer of thermal radiation and scattering phenomena. The H-function is defined as a particular integral that involves spherical harmonics and the scattering properties of the medium.