130 citations · 492 across the 24 of their papers we have counts for
6 papers · 1 filter
3D Radiative MHD Modeling of Particle Beam Heating of the Solar Atmosphere
Samuel Granovsky, Alexander G. Kosovichev, Irina N. Kitiashvili +1
While solar flares are primarily associated with enhanced ultraviolet and X-ray emission, a subset of flares exhibit significant continuum brightening in visible light and are clas…
Activity-Cycle Variations of Convection Scales in Subsurface Layers of the Sun
Alexander V. Getling, Alexander G. Kosovichev
We use subsurface-flow velocity maps inferred by time--distance helioseismology from Doppler measurements with the Helioseismic and Magnetic Imager (HMI) of the Solar Dynamics Obse…
Helicity Fluxes and Hemispheric Helicity Rule of Active Regions Emerging from the Convection Zone Dynamo
V. V. Pipin, Shangbin Yang, A. G. Kosovichev
Using a 3D non-linear mean-field solar dynamo model, we investigate the magnetic helicity flux and magnetic twist, and tilt parameters of bipolar magnetic regions (BMRs) emerging f…
Time-Dependence of Subsurface Solar Convection Using the Time-Distance Deep-Focus Method
John T. Stefan, Alexander G. Kosovichev, Gustavo Guerrero +1
We re-examine the deep-focus methodology of time-distance helioseismology previously used to estimate the power spectrum of the solar convection at a depth of about 30 Mm, which wa…
Improving Our Knowledge of the Solar Near-Surface Shear Layer: The Special Case of the Leptocline
Jean-Pierre Rozelot, Alexander Kosovichev, Irina Kitiashvili
The discovery of the solar activity cycle was linked from the outset to the observation of the temporal variability of sunspots, which we know to be the result of complex processes…
Properties of Turbulent Convection and Large-Scale Flows in a Rotating F-type Star Revealed by 3D Realistic Radiative Hydrodynamic Simulations
Irina N. Kitiashvili, Alexander G. Kosovichev, Alan A. Wray
The nonlinear coupling between stellar convection and rotation is of great interest because it relates to understanding both stellar evolution and activity. We investigated the inf…