Vsevolod Lozitsky




Vsevolod Lozitsky

POSITION
Leading Researcher of the Astrophysics department of Astronomical Observatory

WORK EXPERIENCE
1970-1975
Student
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

1978-1984
Junior Researcher
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

1985-2009
Senior scientific worker
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

2010–2015
Head of department
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

2016–Present
Leading researcher of the astrophysics department
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

EDUCATION AND TRAINING

1975-1978
Postgraduate
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

1972–1975
Candidate of Science
Taras Shevchenko National University of Kiev, Kyiv (Ukraine)

1984
Ph.D
Taras Shevchenko National University of Kiev, Kyiv (Ukraine)

2003
DrSci
Taras Shevchenko National University of Kiev, Kyiv (Ukraine)

Solar activity, Solar magnetic fields, Solar-terrestrial connections

Research Fields:
Astronomy

Previous and Current Research

I studied in detail the spectra of many solar flares and sunspots, using mainly my own observations (from the 1970s to the present) on the solar telescope of the Astronomical Observatory of the University of Kiev. Superstrong magnetic fields (104 – 105 G) were detected in flares, and their properties were studied. Semi-empirical and theoretical MHD models of observed phenomena were constructed. Extremelly strong magnetic fields were detected and studied also in sunspots. Important correlations were found between the most intense manifestations of solar activity and some processes on the Earth.

Future Projects and Goals

Our current projects relate to the improvement of methods for diagnostics of spatially unresolved magnetic fields on the Sun, given that the range of their possible strengths is much wider than it is currently believed. We place great hopes on new observational data from the space observatory 'Hinode', as well as from the ground-based observatory GREGOR. Stokes diagnostics of active formations on the Sun using modern inverse methods and program codes should ensure the receipt of new important data on solar magnetism.

Methodological and Technical Expertise

Solar spectroscopy, Magnetic field measurements using the Zeeman effect, Diagnostics of spatially unresolved magnetic fields, Semi-empirical and theoretical models of active processes on the Sun.

Selected Publications

Soloviev A.A., Lozitsky V.G. 1986. 
A force-free model of a fine-structure magnetic element
Kinematika i Fizika Nebesnykh Tel (2), – 1986 – pp.80-84.

Lozitska N.I., Lozitsky V.G., Soloviev ΐ.ΐ. 
Strong magnetic fields in solar flares: data of observations and a theoretical model
Kinematika i Fizika Nebesnykh Tel (7), no. 6 – 1991 – pp.40-47.

Lozitsky V.G., 
Superstrong magnetic fields in the solar atmosphere
Kinematics and Physics of Celestial Bodies ( 9), no. 3 – 1993 – pp. 18-25.

Lozitsky V.G., Baranovsky E.A., Lozitska N.I., Leiko U.M. 
Observations of magnetic field evolution in a solar flare,
Solar Physics (191), no. 1 – 2000 – pp. 171-183.

Lozitsky V.G., Staude J. 
Observational evidences for a multi-component magnetic field structure in solar flares
Journal of Astrophysics and Astronomy (29) – 2008 – pp. 387-404.

Lozitsky V.G. 
Magnetic fields anf FeI line profiles in the major solar flare on October 28, 2003
Astronomy Letters ( 35), no.2 – 2009 – pp.136-142.

Lozitsky, V.G. 
Observational evidences for extremely strong magnetic fields in solar flares.
International Journal of Astronomy and Astrophysics (1), no.3 – 2011 – pp.147–154.

Kirichek E.A., Solov’ev A.A., Lozitskaya N.I., Lozitskii V.G. 
Magnetic fields in a limb flare on July 19, 2012
Geomagnetism and Aeronomy (53), no.7 – 2013 – pp. 831-834.

Gordovskyy M., Lozitsky V.G., 
Observations of unresolved photospheric magnetic fields in solar flares using FeI and CrI lines
Solar Physics (289), no.10 – 2014 – pp. 3681-3701.

Lozitsky V.G., 
Small-scale magnetic field diagnostics in solar flares using the bisectors of I ± V profiles
Advances in Space Research (55), no.3 – 2015 – pp. 958-967.

Lozitsky V.G. 
Indications of 8-kilogauss magnetic field existence in a sunspot umbra.
Advances in Space Research (57), no. 1 – 2016 – pp.398-407.

Lozitsky V.G. 
Spectral manifestations of extremely strong magnetic fields in the sunspot umbra,
Advances in Space Research (59), no. 5 – 2017 – pp.1416-1424.

Contacts

Homepage: https://www.researchgate.net/profile/V_Lozitsky/


lozitsky_v@ukr.net

lozitsky@observ.univ.kiev.ua