1.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Russian Academy of SciencesRU133 papers
- Lomonosov Moscow State UniversityRU72 papers
- National Research Tomsk State UniversityRU34 papers
- Institute of Solar-Terrestrial PhysicsRU32 papers
- Universitat de ValènciaES27 papers
- Troitsk Institute for Innovation and Fusion ResearchRU23 papers
- Universidade de São PauloBR21 papers
- Chinese Academy of SciencesCN20 papers
- Instituto de Física CorpuscularES19 papers
- Institute for High Energy PhysicsES18 papers
- National Astronomical ObservatoriesCN18 papers
- Kurchatov InstituteRU17 papers
15 papers · 2 filters
On the Possibility of Generating Harmonics of the Electron Plasma Frequency in the Solar Atmosphere due to Explosive Instability in a System of Interpenetrating Electron and Ion Flows
V. V. Fomichev, S. M. Fainshtein, G. P. Chernov
An alternative mechanism is proposed for the generation of harmonics of the electron plasma frequency due to the development of explosive instability in a system of interpenetratin…
Positive and Negative Photospheric Fields in Solar Cycles 21 - 24
E. S. Vernova, M. I. Tyasto, D. G. Baranov +1
Distribution of the positive and negative photospheric fields is studied on the base of synoptic maps of the photospheric magnetic field produced by the National Solar Observatory…
Large Scale Properties of Tilt of Sunspot Groups and Joy's Law Near The Solar Equator
K. M. Kuzanyan, N. Safiullin, N. Kleeorin +2
We present a physical mechanism of formation of tilt angles of sunspots due to the process of formation of active regions below the solar photosphere. The contribution of Coriolis…
Solar Eruptions, Forbush Decreases and Geomagnetic Disturbances from Outstanding Active Region 12673
I. M. Chertok, A. V. Belov, A. A. Abunin
Based on our tool for the early diagnostics of solar eruption geoeffectiveness (EDSEG tool; Chertok et al., 2013, 2015, 2017), we have analyzed space weather disturbances that occu…
Magnetic field as a tracer for studying the differential rotation of the solar corona
O. G. Badalyan, V. N. Obridko
The differential rotation of the solar corona for the period 1976-2004 was studied as a function of the distance from the center of the Sun. For this study, we developed a method u…
Diagnostic Analysis of the Solar Proton Flares of September 2017 by Their Radio Bursts
I. M. Chertok
The powerful flares that occurred in the Sun on September 4-10, 2017 are analyzed on the basis of the technique for the quantitative diagnostics of proton flares developed in IZMIR…
Horizontal photospheric flows trigger a filament eruption
T. Roudier, B. Schmieder, B. Filippov +2
A large filament composed principally of two sections erupted sequentially in the southern hemisphere on January 26 2016. The central, thick part of the northern section was first…
Solar coronal loop dynamics near the null point above active region NOAA 2666
Boris Filippov
We analyse observations of a saddle-like structure in the corona above the western limb of the Sun on 2017 July 18. The structure was clearly outlined by coronal loops with typical…
Superflares on Giant Stars
M. M. Katsova, L. L. Kitchatinov, D. Moss +2
The Kepler mission identified huge flares on various stars including some of solar type. These events are substantially more energetic than solar flares, and so they are referred t…
Local sunspot oscillations and umbral dots
Y. Zhugzhda, R. Sych
Data analysis of sunspot oscillation based on 6-hr SDO run of observation showed that low frequency (0.2 < ! < 1 mHz) oscillations are local similar to three and five minute oscill…
Flux Rope Breaking and Formation of a Rotating Blowout Jet
Navin Chandra Joshi, Naoto Nishizuka, Boris Filippov +2
We analyzed a small flux rope eruption converted into a helical blowout jet in a fan-spine configuration using multi-wavelength observations taken by SDO, which occurred near the l…
Path integrals for mean-field equations in nonlinear dynamos
Dmitry Sokoloff, Nobumitsu Yokoi
Mean-field dynamo equations are addressed with the aid of the path-integral method. The evolution of magnetic field is treated as a three-dimensional Wiener random process, and the…
Intermittency spectra of current helicity in solar active regions
A. S. Kutsenko, V. I. Abramenko, K. M. Kuzanyan +2
We analyse the spatial distribution of current helicity in solar active regions. A comparison of current helicity maps derived from three different instruments (Helioseismic and Ma…
Powerful Solar Flares of September 2017: Correspondence Between Parameters of Microwave Bursts and Proton Fluxes near Earth
I. M. Chertok
In this note, we consider radio characteristics of three proton flares that caused discrete enhancements of solar energetic particles (SEPs) near Earth. The analysis confirmed that…
Polarity imbalance of the photospheric magnetic field
E. S. Vernova, M. I. Tyasto, D. G. Baranov +1
Polarity imbalance of the photospheric magnetic field was studied using synoptic maps of NSO Kitt Peak (1976-2016). Imbalance of positive and negative fluxes was considered for the…