Abstract Details
| Name: Madhusudan Ingale Affiliation: PhD student Conference ID: ASI2015_758 Title : Amplitude of Density Turbulence in the Solar Corona Authors and Co-Authors : Dr. Prasad Subramanian Associate Professor, IISER, Pune Abstract Type : Poster Abstract Category : Sun and the Solar System Abstract : The amplitude of density turbulence $(C_N^2)$ is key in determining the scattering properties of the solar wind and the solar corona. This subject is crucial to a full understanding of the nature of MHD turbulence in the solar corona. Also $C_N^2$ is an important quantity to determine the modulation index $\epsilon$, which is of vital importance in understanding several problems in solar wind turbulence.\\ We have obtained $C_N^2$ as a linear fit to the bservations of the phase structure function between 2 to 16 $R_{\odot}$. This $C_N^2$ is used to obtain $\epsilon$ for the scales of density irregularities between 50 km to 1000 km. We find that the amplitude of density turbulence in the inner corona is much higher than that predicted by the earlier empirical model. Modulation index is found to be increasing initially but may satuarates to $\epsilon = 0.03$ for $R > 30 R_{\odot}$. |