| Name: | Nimmi Narayanan |
| Affiliation: | Sree Sankara College, Kalady |
| Conference ID : | ASI2024_531 |
| Title : | Comparative study of single and multiple scattering in FUV |
| Authors : | Nimmi Narayanan, Sujatha N V |
| Authors Affiliation: | Nimmi Narayanan, Sree Sankara College, Kalady - 683574
Sujatha N.V, St.Xavier's College for Women, Aluva - 683101 |
| Mode of Presentation: | Poster |
| Abstract Category : | Stars, Interstellar Medium, and Astrochemistry in Milky Way |
| Abstract : | Interstellar dust plays a vital role in evolution of stars and galaxies eventhough it constitutes an insignificant fraction of Interstellar medium. Scattering and absorption are the important extinction mechanisms of Interstellar Radiation Field. Analysis and modelling of these phenomena helps in extracting properties and distribution of dust grains in the line of sight. Scattering is prominent in shorter wavelength region while absorption leads to subsequent thermal emission in infrared region. Detailed analysis of UV and IR observations helps in understanding the optical parameters of dust. Single scattering model is usually employed in low dense regions while Monte Carlo multiple scattering model is preferred in high dense regions. In this work, single and multiple scattering models are run for Stars of different fluxes at 1550 A by varying the angular separation between the star and the line of sight for different optical depths. It was found that single and multiple scattered flux become comparable at an angular separation which is logarithmic function of the distance of the star and is independent of star flux. It was also observed that with increasing optical depth, this angular separation decreases. |
