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
The dynamics of Wolf numbers based on nonlinear dynamo with magnetic helicity: comparisons with observations
Ya. Kleeorin, N. Safiullin, N. Kleeorin +3
We investigate the dynamics of solar activity using a nonlinear one-dimensional dynamo model and a phenomenological equation for the evolution of Wolf numbers. This system of equat…
Relations between Microwave Bursts and near-Earth High-Energy Proton Enhancements and their Origin
V. V. Grechnev, V. I. Kiselev, N. S. Meshalkina +1
We further study the relations between parameters of bursts at 35 GHz recorded with the Nobeyama Radio Polarimeters during 25 years, on the one hand, and solar proton events, on th…
Filament Shape Versus Coronal Potential Magnetic Field Structure
Boris Filippov
Solar filament shape in projection on disc depends on the structure of the coronal magnetic field. We calculate the position of polarity inversion lines (PILs) of coronal potential…
Flare processes evolution and polarization changes of fine structures of solar radio emission in the April 11, 2013 event
Gennady Chernov, Robert Sych, Baolin Tan +5
The measurement of positions and sizes of radio sources in the observations of solar radio spectral fine structures in an M6.5 flare on April 11, 2013 were observed simultaneously…
Current helicity and magnetic field anisotropy in solar active regions
H. Xu, R. Stepanov, K. Kuzanyan +3
The electric current helicity density contains six terms, where are components of the magnetic fie…
The Origin of Superflares on G-Type Dwarf Stars of Various Ages
M. M. Katsova, M. A. Livshits
We analyze new observations of superflares on G-stars discovered in the optical and near IR ranges with the Kepler mission. An evolution of solar-type activity is discussed. We giv…
Covert connection of filaments
Boris Filippov
We analyse the relationship between two near filaments, which do not show any connection in H-alpha images but reveal close magnetic connectivity during filament activations in Ext…
The Maunder minimum (1645--1715) was indeed a Grand minimum: A reassessment of multiple datasets
Ilya G. Usoskin, Rainer Arlt, Eleanna Asvestari +13
Aims: Although the time of the Maunder minimum (1645--1715) is widely known as a period of extremely low solar activity, claims are still debated that solar activity during that pe…
A Simple Way to Estimate the Soft X-ray Class of Far-Side Solar Flares Observed with STEREO/EUVI
I. M. Chertok, A. V. Belov, V. V. Grechnev
Around the peaks of substantial flares, bright artifact nearly horizontal saturation streaks (B-streaks) corresponding to the brightest parts of the flare sources appear in the STE…
Solar-Type Activity: Epochs of Cycle Formation
M. M. Katsova, N. I. Bondar', M. A. Livshits
The diagram of indices of coronal and chromospheric activity allowed us to reveal stars where solar-type activity appears and regular cycles are forming. Using new consideration of…
Formation of a rotating jet during the filament eruption on 10-11 April 2013
B. Filippov, A. K. Srivastava, B. N. Dwivedi +4
We analyze multi-wavelength and multi-viewpoint observations of a helically twisted plasma jet formed during a confined filament eruption on 10-11 April 2013. Given a rather large…
Continuum and line emission of flares on red dwarf stars
Egor Morchenko, Konstantin Bychkov, Moisey Livshits
The emission spectrum has been calculated of a homogeneous pure hydrogen layer, which parameters are typical for a flare on a red dwarf. The ionization and excitation states were d…
Latitudinal Distribution of the Photospheric Magnetic Fields of Different Magnitudes
E. S. Vernova, M. I. Tyasto, D. G. Baranov
Photospheric magnetic fields are studied using synoptic maps from 1976 to 2003 produced at the National Solar Observatory, Kitt Peak (NSO/KP). Synoptic maps were averaged over the…
Evolution of Magnetic Helicity and Energy Spectra of Solar Active Regions
Hongqi Zhang, Axel Brandenburg, D. D. Sokoloff
We adopt an isotropic representation of the Fourier-transformed two-point correlation tensor of the magnetic field to estimate the magnetic energy and helicity spectra as well as c…
Solar Magnetic Flux Ropes
Boris Filippov, Olesya Martsenyuk, Abhishek K. Srivastava +1
The most probable initial magnetic configuration of a CME is a flux rope consisting of twisted field lines which fill the whole volume of a dark coronal cavity. The flux ropes can…