Vladimir Florinski

Associate Professorvladimir valencia 300

 

Office: Cramer Hall 2039

Phone: 256-961-7317

Email: vaf0001@uah.edu

 

 

Education

  • M.S. 1997, St. Petersburg State Technical University
  • Ph.D. 2001, University of Arizona

 

Research interests

My research interests encompass broad areas of space physics, plasma physics, and computational physics with applications to heliophysics, cosmic-ray physics, are particle transport. Most of my recent work is on four important aspect of the solar wind – Local Interstellar Medium interaction:

  • Transport of GCRs in turbulent plasma flows in the global heliosphere,
  • Acceleration and transport of ACRs and their effect on the solar wind and the termination shock,
  • Charged particle acceleration at heliospheric shock waves, and
  • Plasma physics of the heliospheric interface.

My two principal research methods are theoretical analysis and numerical simulations using high-performance computers. Such modeling efforts are closely coordinated with space and ground based observations, including the Voyager interstellar mission and IBEX.

heliopause 311 256trajectories 256

The figure on the left shows a simulated heliopause draped by interstellar magnetic field lines as "seen" by a cosmic ray particle approaching the solar system from interstellar space. The figure on the right shows two simulated stochastic trajectories of galactic protons inside the heliosphere.

 

Current graduate students

 

Udara Senanayake

Ph.D. expected 2015

Dissertation: “Acceleration and transport of anomalous cosmic rays: effects of shock geometry and magnetic field topology”.

 

Yihong "Shirley" Wu

Ph.D. expected 2015

Dissertation: “Pickup ion production in the global heliosphere and heliosheath”.

 

Selected recent publications

  1. Guo, X., and Florinski, V., Corotating interaction regions and the 27 day variation of galactic cosmic rays intensity at 1 AU during the cycle 23/24 solar minimum, Journal of Geophysical Research, 119, 2411 (2014).
  2. Fujiku, K., Washimi, H., Hyashi, K., Zank, G. P., Tokamuru, M., Tanaka, T., Florinski, V., and Kubo, Y., MHD analysis of the velocity oscillations in the outer heliosphere, Geophysical Research Letters, 41, 1420 (2014).
  3. Senanayake, U., and Florinski, V., Is the acceleration of anonymous cosmic rays affected by the geometry of the termination shock? Astrophysical Journal, 778, 122 (2013).
  4. Florinski, V., Jokipii, J. R., le Roux, J. A., and Aloiani-Bibi, F., Energetic particle anisotropies at the heliospheric boundary, Astrophysical Journal Letters, 776, L37 (2013).
  5. Florinski, V., Guo, X., Balsara, D. S., and Meyer, C., MHD modeling of solar system processes on geodesic grids, Astrophysical Journal Supplement Series, 205, 19 (2013).
  6. Florinski, V., Ferreira, S. E. S., and Pogorelov, N. V., Galactic cosmic rays in the outer heliosphere: theory and models, Space Science Reviews, 176, 147 (2013).
  7. Washimi, H., Webber, W. R., Zank, G. P., Hu, Q., Florinski, V., Adams, J. H., and Kubo, Y., A role of magnetosonic pulses on variations of Voyager-1 MeV electron intensity in the heliosheath, Astrophysical Journal Letters, 757, L2 (2012).
  8. Florinski, V., Alouani-Bibi, F., Kota, J., and Guo, X., Cosmic-ray diffusion in a sectored magnetic field in the distant heliosheath, Astrophysical Journal, 754, 31 (2012).
  9. Zank, G. P., Dosch, A., Hunana, P., Florinski, V., Matthaeus, W. H., and Webb, G. M., The transport of low-frequency turbulence in astrophysical flows I. Governing equations, Astrophysical Journal, 745, 35 (2012).
  10. Florinski, V., On the transport of cosmic rays in the distant heliosheath, Advances in Space Research, 48, 308 (2011).
  11. Florinski, V., Zank, G. P., Heerikhuisen, J., Hu, Q., and Khazanov, I., Stability of a pickup ion ring-beam population in the outer heliosheath: implications for the IBEX ribbon, Astrophysical Journal, 719, 1097 (2010).
  12. Zank, G. P., Pogorelov, N. V., Heerikhuisen, J., Washimi, H., Florinski, V., Borovikov, S., Kryukov, I., and Müller, H.-R., Physics of the solar wind-local interstellar medium interaction: role of magnetic fields, Space Science Reviews, 146, 295 (2009).
  13. Florinski, V., and Pogorelov, N. V., Four-dimensional transport of galactic cosmic rays in the outer heliosphere and heliosheath, Astrophysical Journal, 701, 642 (2009).
  14. Florinski, V., Decker, R. B., le Roux, J. A., and Zank, G. P., An energetic-particle-mediated termination shock observed by Voyager 2, Geophysical Research Letters, 36, L12101 (2009).
  15. Florinski, V., Balogh, A., Jokipii, J. R., McComas, D. J., Opher, M., Pogorelov, N. V., Richardson, J. D., Stone, E. C., Wood, B. E., The dynamic heliosphere: outstanding issues, Space Science Reviews, 143, 57 (2009).
  16. Florinski, V., Pickup ion acceleration at the termination shock and in the heliosheath, Space Science Reviews, 143, 111 (2009).

 

Recent grants and contracts

  1. Structure and physics of the global heliosphere during the minimum of the solar cycle 24 (NASA NNH09ZDA001N-CCMSC) - $298,000.
  2. Effects of Solar Cycle 24 on the spatial and temporal structure of the heliosheath and its impact on the modulation of galactic cosmic rays in the heliosphere (NASA NNH09ZDA001N-CCMSC) - $269,000.
  3. CAREER: Computational physics for research and industry (NSF 08-557) - $694,452.
  4. Investigating global energetic ion and neutral atom populations with IBEX and Voyager (NASA NNH11ZDA001N-HGI) - $316,195.