SCHOOL OF NATURAL SCIENCES AND MEDICINE
ILIA STATE UNIVERSITY

Direction: Astrophysics – Astronomy
Position:Full Professor





Teimuraz Zaqarashvili has got M.S. with honor in Physics from Tbilisi State University (faculty of Physics ) in 1991. In 1997 he depended PhD thesis in Abasumani Astrophysical observatory. Since 1995 he works at the observatory as scientist, senior scientist and now as main scientist. In 2004 he has received Doctor of Science in physics and mathematics in Abasumani Astrophysical observatory. He has been working in University of St Andrews (UK: 2001-2002), in University of Balearic Islands (Spain: 2005-2006) and in Space Research Institute (Graz, Austria: 2009-2015). During 2000-2004 and 2007-2008 he was visiting University of Balearic Islands as visiting professor. Now he works in University of Graz (Austria). In 1998-2000 he had Research Stipend of President of Georgia as outstanding young PhD and in 2005-2006 as outstanding young Doctor of Science. In 2017 he was awarded by the prize of best scientific group leader in Georgia. Since 2008 he is at Ilia State University as assistant professor, since 2010 as associate professor and since 2018 as full professor. He is cofounder of Space Research Center in the university. His main research areas are solar physics, space plasma physics and astrophysics. He has almost two hundred scientific publications, more than hundred in referred international journals.

Scientific interests / research interests

  • Sun and solar wind
  • Solar-terrestrial relations and space weather
  • Stars and exoplanets
  • Waves, instabilities and turbulence in astrophysical plasmas
  • Observations on Earth based telescopes and space missions

Featured publications

  • Dikpati, M., Gilman, P. A., Guerrero, G. A., Kosovichev, A. G., McIntosh, S. W., Sreenivasan, K. R., Warnecke, J., Zaqarashvili, T. V., Simulating Solar Near-surface Rossby Waves by Inverse Cascade from Supergranule Energy, ApJ, 931, 117, 2022
  • Gurgenashvili, E., Zaqarashvili, T. V., Kukhianidze, V., Reiners, A., Reinhold, T., Lanza, A. F., Rieger-type cycles on the solar-like star KIC 2852336, A&A, 660, A33, 2022
  • Vashalomidze, Z., Zaqarashvili, T. V., Kukhianidze, V., Ramishvili, G., Hanslmeier, A., Gömöry, P., Prominence instability and CMEs triggered by massive coronal rain in the solar atmosphere, A&A, 658, A18, 2022
  • Gurgenashvili, E., Zaqarashvili, T. V., Kukhianidze, V., Reiners, A., Oliver, R., Lanza, A. F., Reinhold, T., Rieger-type periodicity in the total irradiance of the Sun as a star during solar cycles 23-24, A&A, 653, A146, 2021
  • Srivastava, A. K., Ballester, J. L., Cally, P. S., Carlsson, M., Goossens, M., Jess, D. B., Khomenko, E., Mathioudakis, M., Murawski, K., Zaqarashvili, T. V., Chromospheric Heating by Magnetohydrodynamic Waves and Instabilities, JGR, 126, e029097, 2021
  • Zaqarashvili, T. V., Lomineishvili, S., Leitner, P., Hanslmeier, A., Gömöry, P., Roth, M., Kink instability of triangular jets in the solar atmosphere, A&A, 649, A179, 2021
  • Zaqarashvili, T. V., Albekioni, M., Ballester, J.L., Bekki, Y., Biancofiore, L., Birch, A.C., Dikpati, M., Gizon, L., Gurgenashvili, E., Heifetz, E., Lanza, A.F., McIntosh, S.W., Ofman, L., Oliver, R., Proxauf, B., Umurhan, O.M., Yellin-Bergovoy, R., Rossby waves in astrophysics, Space Science Reviews, 217, 15, 2021
  • Dikpati, M., Gilman, P. A., Chatterjee, S., McIntosh, S. W., Zaqarashvili, T. V., Physics of Magnetohydrodynamic Rossby Waves in the Sun, ApJ, 896, 141, 2020
    Zaqarashvili, T. V., Dynamic Kink Instability and Transverse Motions of Solar Spicules, ApJ, 874, 126, 2020
  • Kuridze, D., Mathioudakis, M., Morgan, H., Oliver, R., Kleint, L., Zaqarashvili, T. V., Reid, A., Koza, J., Löfdahl, M. G., Hillberg, T., Kukhianidze, V., Hanslmeier, A., Mapping the Magnetic Field of Flare Coronal Loops, ApJ, 874, 126, 2019
  • Gachechiladze, T., Zaqarashvili, T. V., Gurgenashvili, E., Ramishvili, G., Carbonell, M., Oliver, R., Ballester, J. L., Magneto-Rossby waves in the solar tachocline and the annual variations in solar activity, ApJ, 874, 162, 2019
  • Lanza, A. F., Gizon, L., Zaqarashvili, T. V., Liang, Z. C., Rodenbeck, K., Sectoral r modes and periodic radial velocity variations of Sun-like stars, A&A, 623, A50, 2019
  • Srivastava, A. K., Murawski, K., Kuźma, B., Wójcik, D. P., Zaqarashvili, T. V., Stangalini, M., Musielak, Z. E., Doyle, J. G., Kayshap, P., and Dwivedi, B. N., Confined pseudo-shocks as an energy source for the active solar corona, Nature Astronomy, 2, 951-956, 2018
  • Mghebrishvili, I.,Zaqarashvili, T. V., Kukhianidze, V., Kuridze, D., Tsiklauri, D., Shergelashvili, B. M. and Poedts, S., Association between Tornadoes and Instability of Hosting Prominences, ApJ, 861, 112, 2018
  • Grant, S. D. T., Jess, D. B., Zaqarashvili, T. V., Beck, C., Socas-Navarro, H., Aschwanden, M. J., Keys, P. H., Christian, D. J., Houston, S. J. and Hewitt, R. L., Alfvén wave dissipation in the solar chromosphere, Nature Physics, 14,.480-483, 2018
    Zaqarashvili, T. V., Equatorial Magnetohydrodynamic Shallow Water Waves in the Solar Tachocline, ApJ, 856, 32, 2018
  • Ballester, J. L., Alexeev, I., Collados, M., Downes, T., Pfaff, R. F., Gilbert, H., Khodachenko, M., Khomenko, E., Shaikhislamov, I. F., Soler, R., Vazquez-Semadeni, E., and Zaqarashvili, T. V., Partially Ionized Plasmas in Astrophysics, Space Science Reviews, 214, 58, 2018
    Zaqarashvili, T. V. and Gurgenashvili, E., Magneto-Rossby waves and seismology of solar interior, Frontiers in Astronomy and Space Sciences, 5, 7, 2018
  • Gurgenashvili, E., Zaqarashvili, T. V., Kukhianidze, V., Oliver, R., Ballester, J. L., Dikpati, M., McIntosh, S. W., North-South Asymmetry in Rieger-type Periodicity during Solar Cycles 19-23, ApJ, 845, 137, 2017
  • Pylaev, O. S., Zaqarashvili, T. V., Brazhenko, A. I., Melnik, V. N., Hanslmeier, A., Panchenko, M., Oscillation of solar radio emission at coronal acoustic cut-off frequency, A&A 601, A42, 2017
  • Kuridze, D., Zaqarashvili, T. V., Henriques, V., Mathioudakis, M., Keenan, F.P., Hanslmeier, A., Kelvin-Helmholtz instability in solar chromospheric jets: theory and observation, ApJ, 830, 133, 2016
  • Leitzinger, M., Odert, P., Zaqarashvili, T. V., Greimel, R., Hanslmeier, A., Lammer, H., Indications of stellar prominence oscillations on fast rotating stars: the cases of HK Aqr and PZ Tel, MNRAS, 463, 965, 2016
  • Gurgenashvili, E., Zaqarashvili, T. V., Kukhianidze, V., Oliver, R., Ballester, J. L., Ramishvili, G., Shergelashvili, B., Hanslmeier, A., Poedts, S., Rieger-type Periodicity during Solar Cycles 14-24: Estimation of Dynamo Magnetic Field Strength in the Solar Interior, ApJ, 826, 55, 2016
  • Vashalomidze, Z., Kukhianidze, V., Zaqarashvili, T. V., Oliver, R., Shergelashvili, B., Ramishvili, G., Poedts, S. and De Causmaecker, P., Formation and evolution of coronal rain observed by SDO/AIA on February 22, 2012, A&A, 577, A136, 2015
  • Kuridze, D. Henriques, V., Mathioudakis, M., Erdélyi, R., Zaqarashvili, T. V., Shelyag, S., Keys, P. H. and Keenan, F. P., The dynamics of rapid redshifted and blueshifted excursions in the solar Halpha line, ApJ, 802, 26, 2015
  • Zhelyazkov, I., Zaqarashvili, T. V. and Chandra, R., Kelvin-Helmholtz instability in coronal mass ejecta in the lower corona, A&A, 574, A55, 2015
  • Soler, R., Ballester, J. L. and Zaqarashvili, T. V., Overdamped Alfvén waves due to ion-neutral collisions in the solar chromosphere, A&A, 573, A79, 2015
  • Mghebrishvili, I., Zaqarashvili, T. V., Kukhianidze, V., Ramishvili, G., Shergelashvili, B., Veronig, A., and Poedts, S., Dynamics of a Solar Prominence Tornado Observed by SDO/AIA on 2012 November 7–8, ApJ, 810, 89, 2015
  • Zaqarashvili, T. V., Zhelyazkov, I. and Ofman, L., Stability of rotating magnetized jets in the solar atmosphere. I. Kelvin-Helmholtz instability, ApJ, 813, 123, 2015
  • Zaqarashvili, T. V. Oliver, R., Hanslmeier, A., Carbonell, M., Ballester, J. L., Gachechiladze, T. and Usoskin, I. G., Long-term variation in the Sun’s activity caused by magnetic Rossby waves in the tachocline, ApJL, 805, L14, 2015
  • Vörös, Z., Sasunov, Y. L., Semenov, V. S., Zaqarashvili, T. V., Bruno, R. and Khodachenko, M. L., Reconnection outflow generated turbulence in the solar wind, ApJL, 797, L10, 2014
  • Zaqarashvili, T. V., Vörös, Z. and Zhelyazkov, I., Kelvin-Helmholtz instability of twisted magnetic flux tubes in the solar wind, A&A, 561, A62, 2014
  • Zaqarashvili, T. V., Vörös, Z., Narita, Y. and Bruno, R., Twisted magnetic flux tubes in the solar wind, ApJL, 783, L19, 2014
  • Zaqarashvili, T. V., Khodachenko, M. L. and Soler, R., Torsional Alfvén waves in partially ionized solar plasma: effects of neutral helium and stratification, A&A, 549, A113, 2013
  • Zaqarashvili, T. V., Melnik, V. N., Brazhenko, A. I., Panchenko, M., Konovalenko, A. A., Franzuzenko, A. V., Dorovskyy, V. V. and Rucker, H. O., Radio seismology of the outer solar corona, A&A, 555, A55, 2013
  • Sych, R., Zaqarashvili, T. V., Nakariakov, V. M., Anfinogentov, S. A., Shibasaki, K. and Yan, Y., Frequency drifts of 3-min oscillations in microwave and EUV emission above sunspots, A&A, 539, A23, 2012
  • Lammer, H., Guedel, M., Kulikov, Yu. N., Ribas, I., Zaqarashvili, T. V., Khodachenko, M. L., Kislyakova, K. G., Groeller, H., Odert, P., Leitzinger, M., Fichtinger, B., Krauss, S., Hausleitner,
  • W., Holmstroem, H., Sanz-Forcada, J., Lichtenegger, H. I. M. , Hanslmeier, A., Shematovich, V.I. , Bisikalo, D., Rauer, V. I. and Fridlund, V. I., Variability of solar/stellar activity and magnetic field and its influence on planetary atmosphere evolution, Earth Planets Space, 64, 179, 2012
  • Zaqarashvili, T. V., Carbonell, M., Ballester, J. L. and Khodachenko, M. L., Cut-off wavenumber of Alfven waves in partially ionized plasmas of the solar atmosphere, A&A, 544, A143, 2012
  • Zaqarashvili, T. V., Khodachenko, M. L. and Rucker, H. O., Magnetohydrodynamic waves in solar partially ionized plasmas: two-fluid approach, A&A, 529, A82, 2011
  • Zaqarashvili, T. V., Murawski, K. and Khodachenko, M. L., The excitation of 5-min oscillations in the solar corona, A&A, 529, A85, 2011
  • Zaqarashvili, T. V., Khodachenko, M. L. and Rucker, H. O., Magnetohydrodynamic waves in solar partially ionized plasmas: two-fluid approach, A&A, 529, A82, 2011
  • Leitzinger, M., Odert, P., Ribas, I., Hanslmeier, A., Lammer, H., Khodachenko, M. L., Zaqarashvili, T. V. and Rucker, H. O., Search for indications of stellar mass ejections using FUV spectra, A&A, 536, A62, 2011
  • Zaqarashvili, T. V. Carbonell, M., Oliver, R. and Ballester, J. L., Quasi-biennial oscillations in the solar tachocline caused by magnetic Rossby wave instabilities, ApJL, 724, L95, 2010
  • Zaqarashvili, T. V., Díaz, A. J., Oliver, R. and Ballester, J. L., Instability of twisted magnetic tubes with axial mass flows, A&A, 516, A84, 2010
  • Murawski, K. and Zaqarashvili, T. V. Numerical simulations of spicule formation in the solar atmosphere, A&A, 519, A8, 2010
  • Srivastava, A. K., Zaqarashvili, T. V. Kumar, P. and Khodachenko, M. L., Observation of kink instability during small B5.0 solar flare on 2007 June 4, ApJ, 715, 292, 2010
  • Zaqarashvili, T. V. Kukhianidze, V. and Khodachenko, M. L., Propagation of a sausage soliton in the solar lower atmosphere observed by Hinode/SOT, MNRAS, 404, L74, 2010
  • Zaqarashvili, T. V. Carbonell, M., Oliver, R. and Ballester, J. L., Magnetic Rossby waves in the solar tachocline and Rieger-type periodicities, ApJ, 709, 749, 2010
  • Zaqarashvili, T. V.and Erdėlyi, R., Oscillations and waves in solar spicules, Space Sci. Rev., 149, 355, 2009
  • Zaqarashvili, T. V.., Oliver, R. and Ballester, J. L., Global shallow water magnetohydrodynamic waves in the solar tachocline, ApJL, 691, L41, 2009
  • Zaqarashvili, T. V.. and Skhirtladze, N., Helical motion of magnetic flux tubes in the solar atmosphere, ApJL, 683, L91, 2008
  • Zaqarashvili, T. V., Khutsishvili, E., Kukhianidze, V. and Ramishvili, G., Doppler-shift oscillations in solar spicules, A&A, 474, 627, 2007
  • Zaqarashvili, T. V. and Belvedere, G., Coupling between radial and torsional oscillations in magnetized plasma and possible stellar applications, ApJ, 663, 553, 2007
  • Zaqarashvili, T. V. and Murawsi, K., Torsional oscillation of longitudinally inhomogeneous coronal loops, A&A, 470, 353, 2007
  • Zaqarashvili, T. V. Oliver, R., Ballester, J. L. and Shergelashvili, B. M., Rossby waves in shallow water magnetohydrodynamics, A&A, 470, 815, 2007
  • Kukhianidze, V., Zaqarashvili, T. V.and Khutsishvili, E., Observation of kink waves in solar spicules, A&A, 449, L35-L38, 2006
  • Zaqarashvili, T. V., Oliver, R. and Ballester, J. L., Spectral line width decrease in the solar corona: resonant energy conversion from Alfvén to acoustic waves, A&A, 456, L13-L16, 2006
  • Zaqarashvili, T. V.and Belvedere, G., The origin of long period Alfvén waves in the solar wind, MNRAS, 362, L35-L39, 2005
  • Diáz, A., Zaqarashvili, T. V. and Roberts, B., Fast magnetohydrodynamic oscillations in a force-free line-tied coronal arcade, A&A, 455, 709-717, 2006
  • Zaqarashvili, T. V. and Roberts, B., Two-wave interaction in ideal magnetohydrodynamics, A&A, 452, 1053-1058, 2006
  • Zaqarashvili, T. V. Observation of coronal loop torsional oscillation, A&A, 399, L15, 2003
  • Zaqarashvili, T. V. and Roberts, B., Swing wave-wave interaction: Coupling between fast magnetosonic and Alfvén waves, Phys. Rev. E, 66, 026401, 2002
  • Zaqarashvili, T. V., Oliver, R. and Ballester, J. L., Parametric amplification of magnetosonic waves by an external, transversal, periodic action, ApJ, 569, 519, 2002
  • Zaqarashvili, T. V., Swing amplification of shear Alfvén waves through periodical density variations in a conductive medium, ApJL, 552, L81, 2001
  • Zaqarashvili, T. V., Parametric resonance in ideal magnetohydrodynamics, Phys. Rev. E, 62, 2745, 2000
  • Zaqarashvili, T. V., On a possible generation mechanism for the solar cycle, 1997, ApJ, 487, 930, 1997
  • Pataraya, A. D. and Zaqarashvili, T. V., Generation of waves by the solar magnetic field polarity reversal, Solar Phys., 157, 31, 1995
  • Gigolashvili, M. Sh., Japaridze, D. R., Pataraya, A. D. and Zaqarashvili, T. V., Propagation of a quasi bi-annual impulse close to the moment of the solar magnetic field polarity changing, Solar Phys., 156, 221, 1995

Books, Articles in magazines, Articles in newspapers, An extensive list of publications

  • Zaqarashvili, T. V., Chargeishvili, B. and Sakai, J. I., The role of loop footpoints rotation in single loop flares, Astrophys. Space Sci., 246, 107, 1996
  • Zaqarashvili, T. V., Solar p-modes: possible source of excitation and frequency splitting, A&A, 341, 617, 1999
  • Zaqarashvili, T. V., Javakhishvili, G. and Belvedere, G., On a mechanism for enhancing magnetic activity in tidally interacting binaries, ApJ, 579, 810, 2002
  • Shergelashvili, B. M., Zaqarashvili, T. V., Poedts, S. and Roberts, B., “Swing Absorption” of fast magnetosonic waves in inhomogeneous media, A&A, 429, 767-777, 2005
  • Shergelashvili, B. M., Poedts, S., Maes, C. and Zaqarashvili, T. V., Amplification of compressional MHD waves in systems with forced entropy oscillations, Phys. Rev. E, 046404, 2007
  • Kuridze, D., Zaqarashvili, T. V., Shergelashvili, B. M. and Poedts, S., Acoutsic oscillations in a field-free cavity under solar small-scale bipolar canopy, Annales Geophysicae, 26, 2983, 2008
  • Srivastava, A. K., Zaqarashvili, T. V., Uddin, W.,  Dwivedi, B. N. and Pankaj Kumar, Observations of multiple sausage oscillations in cool post-flare loops, MNRAS, 388, 1899, 2008
  • Srivastava, A. K., Kuridze, D., Zaqarashvili, T. V. and Dwivedi, B. N., Intensity oscillations observed with Hinode near the south pole of the Sun: leakage of low frequency magneto-acoustic waves into the solar corona, A&A, 481, L95, 2008
  • Kuridze, D. and Zaqarashvili, T. V., Resonant energy conversion from 3-min intensity oscillations into Alfvén waves in the solar atmosphere, Journal of Atmospheric and Solar-Terrestrial Physics, 70, 351, 2008
  • Kuridze, D., Zaqarashvili, T. V., Shergelashvili, B. M. and Poedts, S., Acoustic oscillations in the field-free, gravitationally stratified cavities under solar bipolar magnetic canopies, A&A, 505, 763, 2009
  • Gruszecki, M., Murawski, K., Kosovichev, A. G., Parchevsky, K. V. and Zaqarashvili, T. V., Numerical simulations of impulsively excited acoustic-gravity waves in a stellar atmosphere, Acta Phys. Polon., 42, 1333, 2011
  • Murawski, K., Srivastava, A. K. and Zaqarashvili, T. V., Numerical simulations of solar macrospicules, A&A, 535, A58, 2011
  • Murawski, K., Zaqarashvili, T. V. and Nakariakov, V. M., Entropy mode at a magnetic null point as a possible tool for indirect observations of nanoflares in the solar corona, A&A, 533, A18, 2011
  • Zaqarashvili, T. V., Khodachenko, M. L., and Rucker, H. O., Damping of Alfvén waves in solar partially ionized plasmas: effect of neutral helium in multi-fluid approach, A&A, 534, A93, 2011
  • Zaqarashvili, T. V., Oliver, R., Ballester, J. L, Carbonell, M., Khodachenko, M. L., Lammer, H., Leitziger, M. and Odert, P., Rossby waves and polar spots in rapidly rotating stars: implications for stellar wind evolution, A&A, 532, A139, 2011
  • Khodachenko, M. L., Kislyakova, K. G., Zaqarashvili, T. V., Kislyakov, A. G., Panchenko, M., Zaitsev, V. V., Arkhypov, O. V. and Rucker, H. O., Possible manifestation of large-scale transverse oscillations of coronal loops in solar microwave emission, A&A, 525, A105, 2011
  • Khodachenko, M. L., Kislyakov, A. G., Kislyakova, K. G., Zaqarashvili, T. V., Panchenko, M., Zaitsev, V. V., Arkhypov, O. V., Rucker, H. O., Long-periodic transverse oscillations of coronal loops and modulations of solar microwave radiation, in Planetary Radio Emissions VII, Austrian Academy of Sciences Press, 465-470, 2011
  • Zaqarashvili, T. V., Murawski, K., Khodachenko, M. L. Kukhianidze, V. and Rucker, H. O., Magnetohydrodynamic shocks and solitons in the solar atmosphere: recent challenges in observations and theory, in Planetary Radio Emissions VII, Austrian Academy of Sciences Press, 465-470, 2011
  • Srivastava, A. K., Kumar, P., Zaqarashvili, T. V., Filippov, B. P., Khodachenko, M. L. and Uddin, W., Observation of kink instability as driver of recurrent solar flares in AR 10960, Advances in Geosciences, ed. Marc Duldig, Singapore: World Sciences, 141, 2011
  • Zhelyazkov, I. and Zaqarashvili, T. V., Kelvin-Helmholtz instability of kink waves in photospheric twisted flux tubes, A&A, 547, A14, 2012
  • Krauss, S., Fichtinger, B., Lammer, H., Hausleitner, W., Kulikov, Yu. N., Ribas, I., Shematovich, V. I., Bisikalo, D.,  Lichtenegger, H. I. M., Zaqarashvili, T. V., Khodachenko, M. L. and Hanslmeier, A., Solar flares as proxy for the young Sun: satellite observed thermosphere response to an X17.2 flare of Earth’s upper atmosphere,  Ann. Geophys., 30, 1129, 2012
  • Khodachenko, M. L., Alexeev, I., Belenkaya, E., Lammer, H., Grießmeier, J.-M., Leitzinger, M., Odert, P., Zaqarashvili, T. V. and Rucker, H. O., Magnetospheres of “Hot Jupiters”: The importance of magnetodisks in shaping a magnetospheric obstacle, ApJ, 744, 70, 2012
  • Konkol, P., Murawski, K. and Zaqarashvili, T. V., Numerical simulations of magnetoacoustic oscillations in a gravitationally stratified solar corona, A&A, 537, A96, 2012
  • Ebadi, H., Zaqarashvili, T. V. and Zhelyazkov, I., Observation of standing kink waves in solar spicules, Ap&SS, 337, 33, 2012
  • Oliver, R., Soler, R., Terradas, J., Zaqarashvili, T. V. and Khodachenko, M. L., Dynamics of coronal rain and descending plasma blobs in solar prominences. I. Fully ionized case, ApJ, 784, A21, 2014
  • Lomineishvili, S. N., Zaqarashvili, T. V., Zhelyazkov, I. and Tevzadze, A. G., Fast magnetohydrodynamic oscillation of longitudinally inhomogeneous prominence threads: an analogue with quantum harmonic oscillator, A&A, 565, A35, 2014
  • Khutsishvili, E., Kulidzanishvili, V., Kvernadze, T., Zaqarashvili, T. V., Kakhiani, V., Khutsishvili, D. and Sikharulidze, M., Quasi-periodic variations in Doppler velocities of Hα spicules, Astrophys. Space Sci., 354, 259-266, 2014
  • Melnik, V. N., Brazhenko, A. I., Konovalenko, A. A., Briand, C., Dorovskyy, V. V., Zarka, P., Frantsuzenko, A. V., Rucker, H. O., Rutkevych, B. P., Panchenko, M., Denis, L., Zaqarashvili, T. V. and Shergelashvili, B., Decameter type III bursts with changing frequency drift-rate signs, Solar Phys., 290, 193-203, 2015
  • Soler, R., Ballester, J. L. and Zaqarashvili, T. V., Overdamped Alfvén waves due to ion-neutral collisions in the solar chromosphere, A&A, 573, A79, 2015
  • Zhelyazkov, I., Zaqarashvili, T. V. and Chandra, R., Kelvin-Helmholtz instability in coronal mass ejecta in the lower corona, A&A, 574, A55, 2015
  • Vashalomidze, Z., Kukhianidze, V., Zaqarashvili, T. V., Oliver, R., Shergelashvili, B., Ramishvili, G., Poedts, S. and De Causmaecker, P., Formation and evolution of coronal rain observed by SDO/AIA on February 22, 2012, A&A, 577, A136, 2015
  • Wedemeyer, S., Bastian, T., Brajša, R., Barta, M., Hudson, H., Fleishman, G., Loukitcheva, M., Fleck, B., Kontar, E., De Pontieu, B., Tiwari, S., Kato, Y., Soler, R., Yagoubov, P., Black, J. H., Antolin, P., Gunár, S., Labrosse, N., Benz, A. O., Nindos, A., Steffen, M., Scullion, E., Doyle, J. G., Zaqarashvili, T. V., Hanslmeier, A., Nakariakov, V. M., Heinzel, P., Ayres, T., Karlicky, M., SSALMON – The Solar Simulations for the Atacama Large Millimeter Observatory Network, Adv. Space Res., 56, 2679, 2015
  • Zhelyazkov, I., Zaqarashvili, T. V., Chandra, R., Srivastava, A. K. and Mishonov, T., Kelvin-Helmholtz instability in solar cool surges, Adv. Space Res., 56, 2727, 2015
  • Oliver, R., Soler, R., Terradas, J. and Zaqarashvili, T. V., Dynamics of Coronal Rain and Descending Plasma Blobs in Solar Prominences. II. Partially Ionized Case, ApJ, 818, 128, 2016
  • Wedemeyer, S., Bastian, T., Brajša, R., Hudson, H., Fleishman, G., Loukitcheva, M., Fleck, B., Kontar, E. P., De Pontieu, B., Yagoubov, P., Tiwari, S. K., Soler, R., Black, J. H., Antolin, P., Scullion, E., Gunár, S., Labrosse, N., Ludwig, H.-G., Benz, A. O., White, S. M.Hauschildt, P., Doyle, J. G., Nakariakov, V. M., Ayres, T., Heinzel, P., Karlicky, M., Van Doorsselaere, T., Gary, D., Alissandrakis, C. E., Nindos, A., Solanki, S. K., Rouppe van der Voort, L., Shimojo, M., Kato, Y., Zaqarashvili, T. V., Perez, E., Selhorst, C. L., Barta, M., Solar Science with the Atacama Large Millimeter/Submillimeter Array—A New View of Our Sun, Space Sci. Rev., 200, 1-73, 2016
  • Murawski, K., Chmielewski, P., Zaqarashvili, T. V., Khomenko, E., Numerical simulations of magnetic Kelvin-Helmholtz instability at a twisted solar flux tube, MNRAS, 459, 2566, 2016
  • Dumbadze, G., Shergelashvili, B. M., Kukhianidze, V., Ramishvili, G., Zaqarashvili, T. V., Khodachenko, M., Gurgenashvili, E., Poedts, S., De Causmaecker, P., Long-period oscillations of active region patterns: least-squares mapping on second-order curves, A&A, 597, A93, 2017
  • Kuźma, B., Murawski, K., Zaqarashvili, T. V., Konkol, P., Mignone, A., Numerical simulations of solar spicules: Adiabatic and non-adiabatic studies, A&A, 597, A133, 2017
  • Philishvili, E., Shergelashvili, B. M., Zaqarashvili, T. V., Kukhianidze, V., Ramishvili, G., Khodachenko, M., Poedts, S., De Causmaecker, P., Quasi-oscillatory dynamics observed in ascending phase of the flare on March 6, 2012, A&A, 600, A67, 2017
  • Leitner, P., Lemmerer, B., Hanslmeier, A., Zaqarashvili, T. V., Veronig, A., Grimm-Strele, H., Muthsam, H. J., Structure of the solar photosphere studied from the radiation hydrodynamics code ANTARES, Astrophys. Space Sci., 362, 181, 2017
  • Kuridze, D., Henriques, V., Mathioudakis, M., Koza, J., Zaqarashvili, T. V., Rybák, J., Hanslmeier, A., Keenan, F. P., Spectroscopic Inversions of the Ca II 8542 Å Line in a C-class Solar Flare, ApJ, 846, 9, 2017
  • Khutsishvili, D., Zaqarashvili, T. V., Khutsishvili, E., Kvernadze, T., Kulidzanishvili, V., Kakhiani, V., Sikharulidze, M., Anti-phase oscillations of Hα line Doppler velocity and width in solar limb spicules, Astrophys. Space Sci., 362, 235, 2017
  • Zhelyazkov, I., Zaqarashvili, T. V., Ofman, L., Chandra, R., Kelvin-Helmholtz instability in a twisting solar polar coronal hole jet observed by SDO/AIA, Adv. Space Res., 61, 628-638, 2018
  • Bagashvili, S. R., Shergelashvili, B. M., Japaridze, D. R., Kukhianidze, V., Poedts, S., Zaqarashvili, T. V., Khodachenko, M. L. and De Causmaecker, P., Evidence for Precursors of the Coronal Hole Jets in Solar Bright Points, ApJL, 855, L21, 2018
  • Piantschitsch, I., Hanslmeier, A., Roth, M., Zaqarashvili, T. V., Numerical Simulations of Kelvin-Helmholtz Instabilities in a two-fluid regime, Central European Astrophysical Bulletin, 42, 10, 2018
  • Dididze, G., Shergelashvili, B. M., Melnik, V. N.,  Dorovskyy, V. V., Brazhenko, A. I., Poedts, S., Zaqarashvili, T. V., Khodachenko, M., Comparative analysis of solar radio bursts before and during CME propagation, A&A, 625, A63, 2019
  • Vashalomidze, Z. M., Zaqarashvili, T. V., Kukhianidze, V. D., Measurement of the Polytropic Index During Solar Coronal Rain Using a Diagram of the Electron Density Distribution as a Function of Electron Temperature, Astrophysics, 62, 69-78, 2019
  • Vashalomidze, Z. M., Zaqarashvili, T. V., Kukhianidze, V. D., Ramishvili, G., Eruption of Prominences Triggered by Coronal Rain in the Solar Atmosphere Observed by SDO/AIA and Stereo/EUVI, Astrophysics, 62, 529-539, 2019
  • Shergelashvili, B. M., Melnik, V. N., Dididze, G., Fichtner, H., Brenn, G., Poedts, S., Foysi, H., Khodachenko, M. L, Zaqarashvili, T. V., A new class of discontinuous solar wind solutions, MNRAS, 496, 1023-1034, 2020
  • González-Avilés, J. J., Murawski, K., Srivastava, A. K., Zaqarashvili, T. V., González-Esparza, J. A., Numerical simulations of macrospicule jets under energy imbalance conditions in the solar atmosphere, MNRAS, 505, 50-64, 2021
  • Dumbadze, G., Shergelashvili, B. M., Poedts, S., Zaqarashvili, T. V., Khodachenko, M., De Causmaecker, P.,  Eigenspectra of solar active region long-period oscillations, A&A, 653, A39, 2021
  • Erdélyi, R., Korsós, M. B., Huang, X., Yang, Y., Pizzey, D., Wrathmall, S. A., Hughes, I. G., Dyer, M. J., Dhillon, V. S., Belucz, B., Brajša, R., Chatterjee, P., Cheng, X., Deng, Y., Domínguez, S. V., Joya, R., Gömöry, P., Gyenge, N. G., Hanslmeier, A., Kucera, A., Kuridze, D., Li, F., Liu, Z., Xu, L., Mathioudakis, M., Matthews, S., McAteer, J. R. T., Pevtsov, A. A., Pötzi, W., Romano, P., Shen, J. Temesváry, J., Tlatov, A. G., Triana, Ch., Utz, D., Veronig, A.M., Wang, Y., Yan, Y., Zaqarashvili, T. V., Zuccarello, F., The Solar Activity Monitor Network – SAMNet, Journal of Space Weather and Space Climate, 12, 2, 21, 2022
  • González-Avilés, J. J., Murawski, K., Zaqarashvili, T. V., Numerical simulations of a two-fluid jet at a magnetic null point in a solar arcade, MNRAS, 515, 5094, 2022
  • Niedziela, R., Murawski, K., Kadowaki, L., Zaqarashvili, T., Poedts, S., Impulsively generated two-fluid magnetoacoustic-gravity waves: Solar chromosphere heating and plasma outflows, A&A, 668, A32, 2022
  • Horstmann, G. M., Mamatsashvili, G., Giesecke, A., Zaqarashvili, T. V., Stefani, F., Tidally Forced Planetary Waves in the Tachocline of Solar-like Stars, ApJ, 2023 (in press)
  • Albekioni, M., Zaqarashvili, T. V., and Kukhianidze, V., Rossby waves on stellar equatorial beta planes: uniformly rotating radiative stars, A&A, 2023 (accepted)

Current Courses

Course Catalog

Bachelor’s level

  • Fundamentals of Astronomy
  • Exoplanets

Master’s level

  • Physics of stellar atmospheres
  • Planets and Exoplanets

2020-2021 Year

Bachelor’s level

  • Fundamentals of Astronomy
  • Introduction to Solar Physics

Master’s level

  • Solar Physics
  • Spherical Astronomy
  • Theory of radiation and spectral line formation

2019-2020 Year

Bachelor’s level

  • Fundamentals of Astronomy
  • Introduction to Astronomy

Master’s level

  • Solar Physics
  • Theory of radiation and spectral line formation

Doctoral level

  • Research Seminar II
  • Research Seminar I
  • Prospectus (Physics)

2018-2019 Year

Bachelor’s level

  • Introduction to Solar Physics

Master’s level

  • Solar Physics
  • Theory of radiation and spectral line formation

Doctoral level

  • Research Seminar I
  • Solar Magnetohydrodynamics 1
  • Solar Magnetohydrodynamics 2
  • Doctoral Seminar II
  • Solar Magnetohydrodynamics 1
  • Doctoral Seminar I

2017-2018 Year

Bachelor’s level

  • Introduction to Solar Physics

Master’s level

  • Selected Topics of Astronomy
  • Solar Physics

Doctoral level

  • Research Seminar II
  • Doctoral Seminar I

2016-2017 Year

Doctoral level

  • Research Seminar I
  • Solar Magnetohydrodynamics 1
  • Solar Magnetohydrodynamics 2
  • Research Seminar

2015-2016 Year

Doctoral level

  • Solar Magnetohydrodynamics 1
  • Doctoral Seminar I
  • Doctoral Seminar

2014-2015 Year

Master’s level

  • Solar Physics
  • Basics of Hydrodynamics and Magnetohydrodynamics

2013-2014 Year

Doctoral level

  • Individual Course Project
  • Solar Physics

2012-2013 Year

Master’s level

  • Solar Physics

Doctoral level

  • Solar Physics

2011-2012 Year

Master’s level

  • Theory of radiation and spectral line formation
  • Basics of Hydrodynamics and Magnetohydrodynamics
  • Solar Physics

Doctoral level

  • Individual Term Project (Solar Physics)
  • Solar Physics

2010-2011 Year

Master’s level

  • Basics of Hydrodynamics and Magnetohydrodynamics