The seminar holds on Friday at 11:00
in the Conference Hall of P.K. Sternberg Astronomical Institute
and via Zoom
Head of the seminar: Prof. B.V. Somov,
Secretary: L.S. Ledentsov (e-mail: koob@mail.ru)
The seminar considers the questions related to generation of magnetic fields in astrophysical plasmas, effect of the magnetic reconnection and particle acceleration in strong magnetic fields, the origin and propagation of cosmic rays, the flares and other non-stationary phenomena in the solar atmosphere and solar wind, Sun–Earth connections and physical processes in the heliosphere.
N.I. Kleeorin
(Ben-Gurion University of the Negev, Israel)
On the Nature of Turbulent Convection in the Sun and Other Stars:
Laboratory Experiments, Theory of the Mean Field, and Numerical Experiments
in the Framework of This Theory
Zoom connection:
https://us04web.zoom.us/j/2771544622?pwd=WWRGRzd5Rk9QN2JMZ1RDRUlwWEVsUT09
Conference ID: 277 154 4622
Password: 33pCet
P.A. Gritsyk (SAI MSU, Solar Physics Department)
Contemporary Multi-Wavelength Observations of the Solar Flares:
Classical Models and New Approaches
I.A. Bilenko (SAI MSU)
Effect of the Cyclic Variations of the Global Solar Magnetic Field on
the Parameters of Interplanetary Plasmas
M.B. Krainev, M.S. Kalinin, N.S. Svirzhevskii (Lebedev Institute)
On the Interpretation of Long-Term Variations in the Intensity of
the Galactic Cosmic Rays
1. P.A. Gritsyk (SAI MSU, Solar Physics Department)
Ultraviolet Spectrometer SPICE onboard "Solar Orbiter" Spacecraft
(review of the paper by Anderson et. al., Astron. Astrophys., 2019)
2. B.V. Somov (SAI MSU, Solar Physics Department)
On the Hydrodynamic Response of the Chromosphere to X-Ray Heating in the Solar
Flares
D.G. Rodkin (Lebedev Institute)
Interplanetary Coronal Mass Ejections and Their Relation to the Solar Sources
(on the Materials of PhD Thesis)
A. Kirichenko (Lebedev Institute)
Study of the High-Temperature Plasma in the Solar Microflares
(on the Materials of PhD Thesis)
S.I. Bezrodnykh (SAI MSU)
On a Few Modern Papers on the Numerical Modeling of Magnetic Reconnection
B.V. Somov (SAI MSU)
Collaborative Project: Models of the Hydrodynamic Response of the Chromosphere
to the Pulsed Heating by the Accelerated Electrons and Powerful Heat Waves in
the Solar Flares
G.V. Yakunina (SAI MSU)
News from the Conference "Solar and Solar-Terrestrial Physics – 2019"
1. I.N. Myagkova (SINP MSU)
On the Conference "Solar Influences on the Magnetosphere, Ionosphere and
Atmosphere" – Bulgaria, 3-7 June 2019
2. B.V. Somov (SAI MSU)
On the Hydrodynamic Models of the Solar Atmosphere Response to the Impulsive
Heating by the Fluxes of Accelerated Electrons and Powerful Thermal Waves
during a Flare
Yu.V. Dumin (SAI MSU)
"Anemone" and "Atypical Multi-Ribbon" Flares: Review of the Literature and
New Results
M.O. Riazantseva (SRI RAS)
Study of Turbulence in the Solar Wind by the Quick Measurements of Plasma
Parameters by BMSV apparatus onboard SPEKTR-R spacecraft
G.A. Bazilevskaya (Lebedev Institute)
Precipitation of Energetic Electrons from the Earth's Outer Radiation Belt
by Observations in the FIAN Stratospheric Experiment
P.A. Gritsyk (SAI MSU)
Analytical Models of the Electron Acceleration and Interaction with
the Solar Atmosphere during a Flare
(report on the PhD thesis)
1. Hongqi Zhang (Nat. Astron. Obs., Chin. Acad. Sci., Beijing, China).
Evolution of magnetic fields with helicity in solar eruptive active regions
2. Shangbin Yang (Nat. Astron. Obs., Chin. Acad. Sci.).
Evolution of relative magnetic helicity in the solar corona
3. Haiqing Xu (Nat. Astron. Obs., Chin. Acad. Sci.).
The study of solar magnetic field and helicity using multi-magnetographs
O.V. Mingalev, I.V. Mingalev, Kh.V. Malova, A.M. Merzlyi, V.S. Mingalev,
O.V. Khabarova (PGI, SINP MSU, IKI RAN, IZMIRAN).
Description of the Large-Scale Processes in the Near-Earth Space Plasmas
with an Account of the Longitudinal Force Equilibrium of Electrons
L.I. Miroshnichenko (IZMIRAN, SINP MSU).
Solar Cosmic Rays: Topical Astrophysical and Applied Issues
N.E. Molevich (Samara Branch of Lebedev Institute).
Dispersion of Acoustic/Magnetoacoustic Waves in Optically Thin
Heat-Generating Media and Its Role in the Formation of Trains of
Quasiperiodic Autowaves
B.Yu. Yushkov, et al. (SINP MSU).
Comparison between the Beginning of Ground-Based Increase of the Solar
Cosmic Rays and Measurements of the Neutral Emissions by the Solar Eruptive
Event on 10 September 2017
F.F. Goryaev, V.A. Slemzin (Lebedev Institute).
Heating, Acceleration, and Formation of the Ionic Composition of
the Coronal Mass Ejection and Solar-Wind Transient
Yu.V. Dumin, B.V. Somov (SAI MSU).
Topological Models of the Active Regions and Flares on the Sun
B.P. Filippov (IZMIRAN).
Differences between the Regions of Formation of the Fast and Slow Coronal
Mass Ejections
1. V.F. Melnikov (Pulkovo Observatory).
Interaction of the Whistler Turbulence with the Non-Thermal Electrons
in the Flare Loop
2. V.F. Melnikov (Pulkovo Observatory).
On the Chinese Projects of Spectral Radioheliographs for
the Microwave, Decimeter, and Meter Wavelengths
V.N. Yurov (MEPhI).
Polarimetry of the Hard X-Ray Emission by the Solar Flares
1. Yu.V. Dumin (SAI MSU & SRI RAS).
On Some Universal Features in the Formation of Inverted Temperature
Profiles in Non-Equilibrium Plasmas and Their Application to the Solar
Physics (Review of the Conference Reports)
2. Yu.V. Dumin (SAI MSU & SRI RAS).
Discussion of the Paper: Nakariakov V.M., Afanasyev A.N., Kumar S.,
Moon Y.-J. "Effect of local thermal equilibrium misbalance on
long-wavelength slow magnetoacoustic waves", Astrophys. J., v.849,
p.62 (2017)
M.B. Krainev (Lebedev Institute).
On the Relative Contribution of Various Processes to the Modulation of
the Galactic Cosmic Rays in the Heliosphere in the Periods of Low
Solar Activity
A.E. Egorov (Lebedev Institute).
History and Current State of the Fast Radio Bursts Problem
M.B. Krainev (Lebedev Institute).
Some Problems of the Heliospheric Physics and Modulation of
the Galactic Cosmic Rays in the Heliosphere
S.A. Bogachev (Lebedev Institute).
Perspective Space Project SOLARIS for Investigation of the Sun
V.N. Ishkov (IZMIRAN).
Evolutionary and Flare Characteristics of the High-Active Sunspot Groups
in the Solar-Cycle Minima and the Opportunities of Forecasting Their
Flare Productivity
I.A. Bilenko (SAI MSU).
Type II Radio Bursts and Coronal Mass Ejections
Yu.P. Ochelkov (Fedorov Institute of Applied Geophysics).
Variation of the Heliolongitudinal Dependence of Peak Intensity
of the Solar Proton Events in the Cycles of Solar Activity
E.A. Bruevich (SAI MSU).
The Classification of Flares Based on Their Maximal X-Ray Flux and
Duration
News from the conferences:
L.S. Ledentsov (SAI MSU).
Waves and instabilities in the solar atmosphere (La Laguna, Spain,
September 2018)
News from the conferences:
A.V. Getling (SINP MSU).
Solar Physics at the еее General Assembly of IAU (Vienna, August 2018)
Katie Kosak (University of Warwick).
Slow Magnetoacoustic Oscillations in Solar Coronal Loops
I.F. Nikulin, F.V. Vereshchagin (SAI MSU).
Multi-channel CCD-spectroheliograph of the Solar Physics Department SAI
S.V. Vladimirov (Univ. Sydney, JIHT RAS, ITMO University).
Effect of the surface plasmon resonances on the propagation of
electromagnetic waves in the dust plasmas
L.S. Ledentsov (SAI MSU).
Report on the scientific work, on the occasion of re-election for
the research fellow position
A.G. Frank (A.M. Prokhorov General Physics Institute, annfrank@fpl.gpi.ru).
Studying the Structure and Dynamics of the Current Layers by the Laboratory
Experiments
1. Yu.V. Dumin (SAI MSU, IKI RAN)
About the conference "Fundamental Constants: Basic Physics and Units"
(Bonn, 13-18 May 2018)
2. V.V. Nizovtsev (MSU)
Cycles of rotation, magnetism, and spot formation in the astrophysical
paradigm: Analysis of dynamics of the 23-24 cycles of the solar activity
S. Komarov (SRI RAS)
Heat Conductivity in the Hot Gas of Galaxy Clusters
(report on the PhD thesis)
Yu.P. Ochelkov (Fedorov Institute of Applied Geophysics)
Scaling of Temporal Development of the Solar Proton Events
P.A. Gritsyk (SAI MSU)
Analytical Models of Particle Acceleration in the Solar Flares
(PhD thesis)
V.V. Kalegaev, I.I. Alekseev, E.S. Belenkaya, I.S. Nazarkov (SINP MSU)
Dynamics of the Current Systems in the Earth's Magnetosphere
I.V. Zimovets (SRI RAS)
On the Relation of Magnetic Field Configuration to the Dynamics of Sources of
the X-Ray Pulsations in the Solar Flare Regions
S.I. Bezrodnykh, P.A. Gritsyk, A.I. Khlystov (SAI MSU)
Reports on the scientific work on the occasion of reelection
P.A. Gritsyk, L.S. Ledentsov (SAI MSU)
News from the conferences
1. P.A. Gritsyk (SAI MSU)
Discussion of the paper Malkov M.A. "Exact solution of the Fokker-Planck
equation for isotropic scattering", Physical Review D, 95, 023007 (2017)
2. P.A. Gritsyk, Yu.V. Dumin, L.S. Ledentsov (SAI MSU)
News from the conferences
O.V. Khabarova (IZMIRAN)
High-Latitude Conic Current Sheets in the Solar Wind
L.I. Miroshnichenko (IZMIRAN, SINP MSU)
Ancient Proton Events: Debates on Their Reality, Sources, and
Properties
A.A. Reva (Lebedev Institute, RAS)
Study of the Coronal Mass Ejections at Early Stage of Their Development
A.I. Khlystov (SAI MSU)
Global Warming and Its Probable Origin
I.N. Myagkova, A.V. Bogomolov (SINP MSU)
1. Solar Flares Detected in the Experiments onboard "Vernov" and
"Lomonosov" Satellites
2. Sources of the Solar Cosmic Rays: Solar Flares or Coronal Mass Ejections?
(Joint Project by ISIT - ISTP - SINP MSU)
Yu.P. Ochelkov (Fedorov Institute of Applied Geophysics)
Scaling of Temporal Development of the Soft Solar X-ray Bursts at
the Phase of Growth
S.P. Perov ("Earth and Universe", NAUKA, RAS),
N.S. Sidorenkov (Hydrometeorological Center),
A.I. Khlystov (SAI MSU)
Synchronization Processes in the Helio- and Geospheres and
the Solar–Lunar Tides
V.N. Ishkov
(IZMIRAN).
Solar Activity from the Reliable Series of Wolf Numbers:
the Observational Pattern and Possibility of Forecast
1. Yu.V. Dumin (SAI MSU).
Report on the scientific work in the last 5 years, on the occasion of
reelection for the senior research fellow position.
2. L.S. Ledentsov (SAI MSU).
News from the conferences:
(a) 15th European Solar Physics Meeting, Budapest, Hungary,
4-8 September 2017;
(b) Baikal International Junior School on Fundamental Physics
"Physical Processes in the Space and near-Earth Environment",
Irkutsk, Russia, 11-16 September 2017;
(c) Russian-British Seminar of Young Scientists "Dynamical Plasma
Processes in the Heliosphere: from the Sun to the Earth",
Irkutsk, Russia, 18-21 September 2017;
(d) Sao Paulo School of Advanced Science on High Energy and Plasma
Astrophysics in the CTA Era (SPSAS-HighAstro),
Sao Paulo, Brazil, 21-31 May 2017.
3. P.A. Gritsyk (SAI MSU).
News from the conference:
(a) IAUS335: Space Weather of the Heliosphere Processes and Forecasts,
Exeter, England, 17-21 July 2017.
A.G. Tlatov
(Kislovodsk Mountain Astronomical Station of Pulkovo Observatory, RAS).
Forecast of the Space Weather Based on the National Observations
of Solar Activity
We consider the prospects of development of the space weather forecast
system based on the national ground-based facilities for observation of
the solar activity. The forecast of space weather can be separated into
three components: (1) prediction of the recurrent, gradually varying events,
related to the topology of the large-scale magnetic field, (2) evaluation
of the fluxes of UV and hard emission, and (3) observation of the quick
events, such as the solar flares and eruptive processes, and forecast of
their consequences in the Earth's orbit. To implement the forecast of
recurrent events, the data of regular observations of the large-scale solar
fields by the magnetographic telescopes for operational forecast STOP are
efficiently employed now. To evaluate the hard radiation fluxes as well as
to detect the eruptive events and evaluate their geoefficiency, data by
the patrol optical spectrographic telescopes can be used. The patrol
telescopes operate in automatic regime and enable us to register the
corresponding processes with intervals about 1 min. To detect the eruptive
processes, we suggest a method based on the difference of intensity in
the wings of chromospheric spectral lines. In the present report, we shall
consider the results of application of the observational complex of
the Kislovodsk Mountain Station for forecasting the space weather.