109 citations · 761 across the 22 of their papers we have counts for
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Helioseismic Fréchet Traveltime Kernels in Spherical Coordinates
R. B. Schlottmann, A. G. Kosovichev
Seismic traveltime measurements are a crucial tool in the investigation of the solar interior, particularly in the examination of fine-scale structure. Traditional analysis of trav…
First Sunquake of Solar Cycle 24 Observed by Solar Dynamics Observatory
A. G. Kosovichev
The X2.2-class solar flare of February 15, 2011, produced a powerful `sunquake' event, representing a seismic response to the flare impact. The impulsively excited seismic waves fo…
Analysis of SOHO/MDI and TRACE Observations of Sunspot Torsional Oscillation in AR10421
O. S. Gopasyuk, A. G. Kosovichev
Rotation of the leading sunspot of active region NOAA 10421 was investigated using magnetograms and Dopplergrams from the MDI instrument of the Solar and Heliospheric Observatory (…
LES of turbulent convection in solar-type stars and formation of large-scale magnetic structures
I. Rogachevskii, N. Kleeorin, I. N. Kitiashvili +3
In this study we investigate the effects of turbulent convection on formation of large-scale inhomogeneous magnetic structures by means of Large-Eddy Simulation (LES) for convectio…
Detection of Supergranulation Alignment in Polar Regions of the Sun by Helioseismology
Kaori Nagashima, Junwei Zhao, Alexander G. Kosovichev +1
We report on a new phenomenon of `alignment' of supergranulation cells in the polar regions of the Sun. Recent high-resolution datasets obtained by the Solar Optical Telescope onbo…
Numerical MHD Simulations of Solar Magnetoconvection and Oscillations in Inclined Magnetic Field Regions
I. N. Kitiashvili, A. G. Kosovichev, N. N. Mansour +1
The sunspot penumbra is a transition zone between the strong vertical magnetic field area (sunspot umbra) and the quiet Sun. The penumbra has a fine filamentary structure that is c…