Supergranules, which are solar flow features with a lateral scale of 30,000–40,000 km and a lifetime of~ 24 h, form a prominent component of the Sun's convective spectrum. However …
SB Das - The Astrophysical Journal, 2022 - iopscience.iop.org
Direct seismic imaging of subsurface flow, sound speed, and magnetic field is crucial for predicting flux-tube emergence on the solar surface, an important ingredient for space …
Context. Retrograde Rossby waves, measured to have significant amplitudes in the Sun, likely have notable implications for various solar phenomena. Aims. Rossby waves create …
P Mani, CS Hanson, S Hanasoge - The Astrophysical Journal, 2022 - iopscience.iop.org
The technique of normal-mode coupling is a powerful tool with which to seismically image non-axisymmetric phenomena in the Sun. Here we apply mode coupling in the Cartesian …
P Mani, S Hanasoge - The Astrophysical Journal, 2021 - iopscience.iop.org
Helioseismic observations have provided valuable data sets with which to pursue the detailed investigation of solar interior dynamics. Among various methods to analyze these …
Context. Helioseismic inversions largely rely on sensitivity kernels, in which 3D spatial functions describe how the changes in the solar interior translate into the change in …
The Sun is our closest star and is composed of self-gravitating ionized gas called plasma. Subject to complicated shearing motion in the solar interior, the plasma generates magnetic …