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Full-Text Articles in Physical Sciences and Mathematics
Helioseismic Diagnostics Of Active Regions And Their Magnetic Fields, John T. Stefan
Helioseismic Diagnostics Of Active Regions And Their Magnetic Fields, John T. Stefan
Dissertations
While two and a half decades of nearly constant observation by the Solar and Heliospheric Observatory (SOHO) and the Solar Dynamics Observatory (SDO) spacecraft have yielded key insights into the structure and dynamics of active regions, it is still unclear if active regions can be identified before emerging on the solar surface and, once emerged, whether the subsurface structure of an active region’s magnetic field can be measured. Regarding the dynamical processes associated with active regions, the height and mechanism of sunquake excitation remains poorly understood. To answer these questions, a comprehensive survey of active region magnetic fields and their …
Global Mhd And Acoustic Solar Modeling And Helioseismic Analysis, Andrey M. Stejko
Global Mhd And Acoustic Solar Modeling And Helioseismic Analysis, Andrey M. Stejko
Dissertations
Computational fluid dynamic simulations have become one of the most prolific avenues of study in the fields of solar and stellar physics within the last several decades. With the advent of ever increasing computing power, high-definition global models of the Sun have become indispensable in understanding the complex and chaotic nature of flows in the solar interior, as well as their impact on the evolution of the global solar dynamo. The mechanisms that connect the generation of the toroidal magnetic field at the base of the convection zone to the emergence of a poloidal field onto the solar surface can …