Abstract Details
| Name: SOUMIK KAR Affiliation: Physical Research Laboratory Conference ID: ASI2025_347 Title : Simulating Temperature and Spectral Energy distributions in Protoplanetary Disks Authors and Co-Authors : Soumik Kar and Kinsuk Acharyya Abstract Type : Poster Abstract Category : Sun, Solar System, Exoplanets, and Astrobiology Abstract : A protoplanetary disk is a rotating circumstellar disk composed of dense gas and dust surrounding a young star. The study of protoplanetary disk structure and composition is crucial to understanding the processes of planet formation. Over the years, several models have been proposed to describe the chemical and hydrodynamical processes in these disks. In this work, we introduce a radiative transfer model designed to characterize the distribution of temperature and spectral energy throughout a disk. Our approach presents an efficient method for achieving radiative equilibrium in Monte Carlo Radiative Transfer (MCRT) simulations, specifically for systems with temperature-independent opacities, such as dusty astrophysical environments. This approach utilizes the MCRT’s capacity to track individual photon packets, allowing precise determination of energy absorption sites and subsequent adjustment of the local cell temperature. To maintain radiative equilibrium, each absorbed packet is immediately re-emitted, with its frequency selected to correct the cell’s thermal spectrum. The re-emitted packets continue to undergo scattering, absorption, and re-emission until they escape, enabling the system’s temperature and spectral energy distribution (SED) to reach equilibrium without iteration. This process conserves energy exactly, eliminates convergence issues, and requires no additional computation time compared to pure scattering models. We present initial results toward a comprehensive understanding of temperature and SED distributions in protoplanetary disks. |