158. Magnetic properties on the boundary of an evolving pore
157. Forward Modeling Helioseismic Signatures of One- and Two-Cell Meridional Circulation
156. Fast and Accurate Emulation of the SDO/HMI Stokes Inversion with Uncertainty Quantification
155. Hydrodynamic Properties of the Sun’s Giant Polar Vortices
154. A Possible Selection Rule for Flares Causing Sunquakes
153. Computing Helioseismic Sensitivity Kernels for the Sun’s Large-scale Internal Flows Using Global-scale Wave-propagation Simulations
A new method to derive the helioseismic sensitivity kernels for the Sun’s large-scale internal flows is developed. The new method is based on the idea of placing a small-volume flow perturbation inside the Sun’s model, simulating the wavefield in the photosphere, and then measuring the phase shifts caused by this internal perturbation.
152. Probing the Solar Meridional Circulation using Fourier Legendre Decomposition
Fourier Legendre decomposition is applied on HMI’s long-term Doppler-velocity observations to derive the Sun’s internal meridional circulation. In addition to the well-known center-to-limb effect, a non-axisymmetric component in the northern- and southern-hemisphere is identified as another systematic effect that complicates the derivation of the internal meridional circulation.
151. Hemispheric Sign Preference of Magnetic Helicity Flux in Solar Cycle 24
To study the physical processes causing the hemispheric sign preference (HSP) of helicity in the Sun, the authors surveyed active regions (ARs) observed during Solar Cycle 24 to estimate their magnetic helicity flux, and studied the HSP dependences of the magnetic helicity flux with respect to various properties of ARs.