Alexander G. Kosovichev
|Office:||105F Cullimore Hall|
- Dr.Sc, Astrophysics, St. Petersburg University, Russia, 1990
- Ph.D., Applied Mathematics, Moscow University, Russia, 1980
- M.S., Plasma Physics, Novosibirsk University, 1975
Awards and Honors
· 2015 NASA Honor Award for Group Achievement “Heliophysics Modeling and Simulation Team”
· 2015 Vice-President of Commission “Solar Radiation and Structure” of the International Astronomical Union
· 2014 Fellow of the American Geophysical Union
· 2005 Wempe Prize in Astrophysics
PHYS 747 Introduction to Helioseismology
PHYS 780-001 Solar and Solar-Terrestrial Physics
PHYS 792 Pre-Doctoral Research
PHYS 780 Basic Plasma Physics
Director of the Center for Computational Heliophysics
Principal Investigator for the NASA Living With a Star Program
My research interests encompass a broad range of solar physics topics, and focus on the key problems of multi-scale solar dynamics and activity: dynamo, magnetoconvection, formation and dynamics of magnetic structures, magnetic energy storage and release, links between the subsurface dynamics and coronal activity. The primary methods of investigation are various types of data analysis (helioseismology, spectro-polarimetry, EUV- and X-ray imaging and spectroscopy), theoretical and numerical modeling.
The primary sources of data are NASA’s and European space missions: SOHO, TRACE, RHESSI, HINODE, SDO, PICARD, IRIS, KEPLER and also the ground-based data from the NST and the helioseismology network GONG+. Numerical simulations are carried out in collaboration with several computational groups, mostly, with the NASA Ames Research Center and Bay Area Environmental Research Institute, Michigan State University and others, using the supercomputer systems of the NSF Extreme Science and Engineering Discovery Environment (XSEDE) and the NASA Advanced Supercomputing Division.
I have served as PI for several NASA research projects: Guest Investigator, Supporting Research and Technology, Living With a Star (LWS) Focused Science Teams, and LWS Strategic Capabilities. I have served as Co-I for the science planning, data calibration and analysis from the MDI (Michelson Doppler Imager) instrument on SOHO, the HMI (Helioseismic and Magnetic Imager) and AIA (Advanced Imaging Assembly) instruments on the Solar Dynamics Observatory (SDO), leading two research teams on local helioseismology analysis and numerical MHD simulations, worked on data analysis from the space missions, and also from NST and GONG. I have also participated in various science teams for future space missions (SOLAR-C, InterHelioProbe, Solar Polar Imager, SAFARI), and in the science team of the Daniel K. Inouye Solar Telescope (DKIST).
1. Sadykov, V.M., S. Vargas Dominguez, A.G. Kosovichev, I.N. Sharykin, A.B. Struminsky, and I. Zimovets, Properties of Chromospheric Evaporation and Plasma Dynamics of a Solar Flare from Iris. The Astrophysical Journal, 2015. 805: p. 167.
2. Balona, L.A., A.-M. Broomhall, A. Kosovichev, V.M. Nakariakov, C.E. Pugh, and T. Van Doorsselaere, Oscillations in stellar superflares. Monthly Notices of the Royal Astronomical Society, 2015. 450: p. 956-966.
3. Kitiashvili, I.N., A.G. Kosovichev, N.N. Mansour, and A.A. Wray, Realistic Modeling of Local Dynamo Processes on the Sun. The Astrophysical Journal, 2015. 809: p. 84.
4. Reiter, J., E.J. Rhodes, Jr., A.G. Kosovichev, J. Schou, P.H. Scherrer, and T.P. Larson, A Method for the Estimation of p-Mode Parameters from Averaged Solar Oscillation Power Spectra. The Astrophysical Journal, 2015. 803: p. 92.
5. Sharykin, I.N. and A.G. Kosovichev, Dynamics of Electric Currents, Magnetic Field Topology, and Helioseismic Response of a Solar Flare. The Astrophysical Journal, 2015. 808: p. 72.
6. Sharykin, I.N., A.G. Kosovichev, and I.V. Zimovets, Energy Release and Initiation of a Sunquake in a C-class Flare. The Astrophysical Journal, 2015. 807: p. 102.
7. Simitev, R.D., A.G. Kosovichev, and F.H. Busse, Dynamo Effects Near the Transition from Solar to Anti-Solar Differential Rotation. The Astrophysical Journal, 2015. 810: p. 80.
8. Zhao, J., R. Chen, T. Hartlep, and A.G. Kosovichev, Detection of Fast-moving Waves Propagating Outward along Sunspots’ Radial Direction in the Photosphere. The Astrophysical Journal Letters, 2015. 809: p. L15.
9. Parchevsky, K.V., J. Zhao, T. Hartlep, and A.G. Kosovichev, Verification of the Helioseismology Travel-time Measurement Technique and the Inversion Procedure for Sound Speed Using Artificial Data. The Astrophysical Journal, 2014. 785: p. 40.
10. Pipin, V.V. and A.G. Kosovichev, Effects of Anisotropies in Turbulent Magnetic Diffusion in Mean-field Solar Dynamo Models. The Astrophysical Journal, 2014. 785: p. 49.
11. Sharykin, I.N. and A.G. Kosovichev, Fine Structure of Flare Ribbons and Evolution of Electric Currents. The Astrophysical Journal Letters, 2014. 788: p. L18.
12. Vargas Domínguez, S., A. Kosovichev, and V. Yurchyshyn, Multi-wavelength High-resolution Observations of a Small-scale Emerging Magnetic Flux Event and the Chromospheric and Coronal Response. The Astrophysical Journal, 2014. 794: p. 140.
13. Vargas Dominguez, S., A.G. Kosovichev, and V. Yurchyshyn, Emergence of a small-scale magnetic flux tube and the response of the solar atmosphere. Central European Astrophysical Bulletin, 2014. 38: p. 25-30.
14. Yurchyshyn, V., V. Abramenko, A. Kosovichev, and P. Goode, High Resolution Observations of Chromospheric Jets in Sunspot Umbra. The Astrophysical Journal, 2014. 787: p. 58.
15. Zhao, J., A.G. Kosovichev, and R.S. Bogart, Solar Meridional Flow in the Shallow Interior during the Rising Phase of Cycle 24. The Astrophysical Journal Letters, 2014. 789: p. L7.
16. Didkovsky, L., A. Kosovichev, D. Judge, S. Wieman, and T. Woods, Variability of Solar Five-Minute Oscillations in the Corona as Observed by the Extreme Ultraviolet Spectrophotometer (ESP) on the Solar Dynamics Observatory/Extreme Ultraviolet Variability Experiment (SDO/EVE). Solar Physics, 2013. 287: p. 171-184.
17. Guerrero, G., P.K. Smolarkiewicz, A.G. Kosovichev, and N.N. Mansour, Differential Rotation in Solar-like Stars from Global Simulations. The Astrophysical Journal, 2013. 779: p. 176.
18. Pipin, V.V. and A.G. Kosovichev, The Mean-field Solar Dynamo with a Double Cell Meridional Circulation Pattern. The Astrophysical Journal, 2013. 776: p. 36.
19. Zhao, J., R.S. Bogart, A.G. Kosovichev, T.L. Duvall, Jr., and T. Hartlep, Detection of Equatorward Meridional Flow and Evidence of Double-cell Meridional Circulation inside the Sun. The Astrophysical Journal Letters, 2013. 774: p. L29.