| Name: | NAMBRAM NIRODA DEVI |
| Affiliation: | ASSAM UNIVERSITY SILCHAR |
| Conference ID: | ASI2025_509 |
| Title: | Exploring the Umov Effect in Dust Aggregates: Influence of Material Composition and Size Distribution |
| Authors: | Nambram Niroda Devi 1 , Himadri Sekhar Das 1, Abinash Suklabaidya 2 , Bhaskar Goswami 1 |
| Authors Affiliation: | 1 Department of Physics, Assam University , Silchar 788011, India
2 Pandit Deendayal Upadyaya Adharsha Mahavidyalaya, Eraligool, Karimganj 788723, Assam, India |
| Mode of Presentation: | Poster |
| Abstract Category: | Stars, Interstellar Medium, and Astrochemistry in Milky Way |
| Abstract: | This study investigates the Umov effect—an inverse correlation between reflectivity and the degree of linear polarization of scattered light—within the context of aggregate dust models. We analyze both polydisperse and monodisperse aggregates, employing the multisphere T-matrix (MSTM) code to simulate light scattering by various dust compositions, including carbonaceous materials, silicates, and Halley-like dust. The research highlights the impact of particle size distribution on the Umov effect and explores the optical properties of different aggregate types over a range of refractive indices. Our findings contribute to a deeper understanding of light scattering in cosmic dust environments. |
