182 citations · 2k across the 93 of their papers we have counts for
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Seismic Halos Around Active Regions: An MHD Theory
Shravan M. Hanasoge
Comprehending the manner in which magnetic fields affect propagating waves is a first step toward constructing accurate helioseismic models of active region sub-surface structure a…
Global effects of local sound-speed perturbations in the Sun: A theoretical study
S. M. Hanasoge, T. P. Larson
We study the effect of localized sound-speed perturbations on global mode frequencies by applying techniques of global helioseismology on numerical simulations of the solar acousti…
{\it f}-mode interactions with thin flux tubes: the scattering matrix
S. M. Hanasoge, A. C. Birch, T. J. Bogdan +1
We calculate the scattering effects associated with the interaction of a surface gravity or {\it f} mode with a thin magnetic flux tube embedded in a realistically stratified mediu…
Impact of Locally Suppressed Wave sources on helioseismic travel times
S. M. Hanasoge, S. Couvidat, S. P. Rajaguru +1
Wave travel-time shifts in the vicinity of sunspots are typically interpreted as arising predominantly from magnetic fields, flows, and local changes in sound speed. We show here t…