Abstract Details
| Name: SAHEL DEY Affiliation: IISc, Bengaluru Conference ID: ASI2019_206 Title : A realistic simulation of solar atmosphere with subsurface three dimensional magnetic field structure Authors and Co-Authors : Sahel Dey and Dr. Piyali Chatterjee Abstract Type : Poster Abstract Category : Sun and the Solar System Abstract : To understand solar activity, space weather and their overall impact on human life, one of the best method is to study the magnetic activity of the Sun. Here, using HMI sharp series vector magnetogram data, we have constructed a 3-dimensional subsurface magnetic topological structure for active region 11158. To introduce curvature effect of the photo-sphere, we use Cylindrical Equivalent Area (CEA) projection to vector magnetogram data for our Cartesian coordinate system. Next, we have investigated the photospheric plasma velocity profile through Differential Affine Velocity Estimator for Vector Magnetogram (DAVE4VM) package. Using these 3d structures of magnetic and velocity field, we run realistic 2.5d and 3d simulations in a higher order finite difference code (Pencil-Code). We analyze what kind of waves (Alfven / Magneto-acoustic or both) can transport energy from the convection zone to the upper solar atmosphere or it is the magnetic reconnection. Here, our ultimate goal is to observe what are the potential candidates to sustain the constant million kelvin temperature in the solar corona. |