On the photon diffusion time scale for the sun

Abstract

view Abstract Citations (28) References (7) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS On the Photon Diffusion Time Scale for the Sun Mitalas, R. ; Sills, K. R. Abstract It is pointed out that the common choice of 0.5-1.0 cm for the average step length of a photon diffusing through the sun gives a diffusion time scale which is too short by an order of magnitude. Simple random walk theory with step lengths determined from a solar model gives the value of 0.090 cm for the average step length, which gives 170,000 yr for the diffusion time scale of the present sun. Publication: The Astrophysical Journal Pub Date: December 1992 DOI: 10.1086/172103 Bibcode: 1992ApJ...401..759M Keywords: Diffuse Radiation; Radiative Transfer; Solar Interior; Solar Radiation; Stellar Structure; Diffusion; Random Walk; Stellar Convection; Stellar Models; Solar Physics; DIFFUSION; RADIATIVE TRANSFER; SUN: INTERIOR full text sources ADS |