29 citations · 53 across the 5 of their papers we have counts for
5 papers
Improving the Understanding of Subsurface Structure and Dynamics of Solar Active Regions (A white paper submitted to the decadal survey for solar and space Physics (Heliophysics) -- SSPH 2024-2033)
S. C. Tripathy, K. Jain, D. Braun +14
The goal of helioseismology is to provide accurate information about the Sun's interior from the observations of the wave field at its surface. In the last three decades, both glob…
Probing sunspots with two-skip time-distance helioseismology
T. L. Duvall, P. S. Cally, D. Przybylski +2
Previous helioseismology of sunspots has been sensitive to both the structural and magnetic aspects of sunspot structure. We aim to develop a technique that is insensitive to the m…
Modelling Fast-Alfvén Mode Conversion Using SPARC
H Moradi, P S Cally
We successfully utilise the SPARC code to model fast-Alfvén mode conversion in the region via 3-D MHD numerical simulations of helioseismic waves within constant incl…
Numerical simulations of conversion to Alfven waves in solar active regions
Elena Khomenko, Paul Cally
We study the coupling of magneto-acoustic waves to Alven waves using 2.5D numerical simulations. In our experiment, a fast magnetoacoustic wave of a given frequency and wavenumber…
Surface magnetic field effects in local helioseismology
H. Schunker, D. C. Braun, P. S. Cally
Using helioseismic holography strong evidence is presented that the phase (or equivalent travel-time) of helioseismic signatures in Dopplergrams within sunspots depend upon the lin…