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
128 papers · 1 filter
Neural Differential Equations for the Solar Dynamo
E. Illarionov, R. Stepanov, K. M. Kuzanyan +1
Physical models aimed to reproduce basic features of the solar sunspot cycle are typically based on the solar dynamo mechanism. Usually qualitative arguments are used to define par…
Magnetic Configuration of Active Regions Associated with GLE Events
Regina A. Suleymanova, Leonty I. Miroshnichenko, Valentina I. Abramenko
Charged particles, generated in solar flares, sometimes can get extremely high energy, above the 500 MeV level, and produce abrupt ground level enhancements (GLEs) on the ground-ba…
The Extended Solar Cycle and Asymmetry of the Large-Scale Magnetic Field
V. N. Obridko, A. S. Shibalova, D. D. Sokoloff
Traditionally, the solar activity cycle is thought as an interplay of the main dipole component of the solar poloidal magnetic field and the toroidal magnetic field. However, the r…
Evolution of solar and stellar dynamo theory
Paul Charbonneau, Dmitry Sokoloff
In this paper, written as a general historical and technical introduction to the various review papers collected in the special issue ``Solar and Stellar Dynamo: A New Era'', we re…
Ripples and Rush-to-the-Poles in the photospheric magnetic field
Elena S. Vernova, Marta I. Tyasto, Dmitrii G. Baranov
The distribution of magnetic fields of positive and negative polarities over the surface of the Sun was studied on the basis of synoptic maps presented by the NSO/Kitt Peak (1978-2…
Migrating Dynamo Waves and Consequences for Stellar Current Sheets
E. Maiewski, H. Malova, V. Popov +2
We study the relation between stellar dynamo-wave propagation and the structure of the stellar magnetic field. Modeling dynamo waves by the well-known Parker migratory dynamo, we v…
On some features of the solar proton event on 2021 October 28 (GLE73)
I. M. Chertok
In addition to several recent articles devoted to the rare event of ground-level enhancement of the solar relativistic proton flux observed on 2021 October 28 (GLE73), we study the…
Clarifying Physical Properties of Magnetic Fields in Sunspots
V. N. Obridko, M. M. Katsova, D. D. Sokoloff +2
We demonstrate that the radial magnetic-field component at the outer boundary of the sunspot penumbra is about 550 Mx cm independent of the sunspot area and the maximum magn…
Solar and stellar activity cycles -- no synchronization with exoplanets
V. N. Obridko, M. M. Katsova, D. D. Sokoloff
Cyclic activity on the Sun and stars is primarily explained by generation of the magnetic field by a dynamo mechanism, which converts the energy of the poloidal field into the ener…
Solar and stellar flares: frequency, active regions and stellar dynamo
M. M. Katsova, V. N. Obridko, D. D. Sokoloff +1
We demonstrate that for weak flares the dependence on spottedness can be rather weak. The fact is that such flares can occur both in small and large active regions. At the same tim…
Synthetic solar cycle for active regions violating the Hale's polarity law
A. Zhukova, A. Khlystova, V. Abramenko +1
Long observational series for bipolar active regions (ARs) provide significant information about the mutual transformation of the poloidal and toroidal components of the global sol…
Electron-to-ion bulk speed ratio as a parameter reflecting the occurrence of strong electron-dominated current sheets in the solar wind
Olga Khabarova, Jörg Büchner, Neeraj Jain +3
Current sheets (CSs) are preferred sites of magnetic reconnection and energy dissipation in collisionless astrophysical plasmas. Electric currents in them may be carried by both el…
Shock-wave radio probing of solar wind sources in coronal magnetic fields
A. Koval, M. Karlicky, A. Stanislavsky +3
The Space Weather effects in the near-Earth environment as well as in atmospheres of other terrestrial planets arise by corpuscular radiation from the Sun, known as the solar wind.…
Solar large-scale magnetic field and cycle patterns in solar dynamo
V. N. Obridko, V. V. Pipin, D. D. Sokoloff +1
We compare spectra of the zonal harmonics of the large-scale magnetic field of the Sun using observation results and solar dynamo models. The main solar activity cycle as recorded…
Critical decay index for eruptions of 'short' filaments
Boris Filippov
Model of a partial current-carrying torus loop anchored to the photosphere is analyzed. Conditions of the catastrophic loss of equilibrium are considered and corresponding value of…
Mass of prominences experiencing failed eruptions
B. Filippov
A number of solar filaments/prominences demonstrate failed eruptions, when a filament at first suddenly starts to ascend and then decelerates and stops at some greater height in th…
Radial Evolution of the April 2020 Stealth Coronal Mass Ejection between 0.8 and 1 AU -- A Comparison of Forbush Decreases at Solar Orbiter and Earth
Johan L. Freiherr von Forstner, Mateja Dumbović, Christian Möstl +40
Aims. We present observations of the first coronal mass ejection (CME) observed at the Solar Orbiter spacecraft on April 19, 2020, and the associated Forbush decrease (FD) measured…
Current sheets, plasmoids and flux ropes in the heliosphere. Part II: Theoretical aspects
O. Pezzi, F. Pecora, J. le Roux +13
Our understanding of processes occurring in the heliosphere historically began with reduced dimensionality - one-dimensional (1D) and two-dimensional (2D) sketches and models, whic…
Termination shock as a source of unusual solar radio bursts
Valery Fomichev, Gennady Chernov
Using centimeter wave and decimeter wave solar radio spectral observations of the flares of November 18, 2003 and September 12, 2004, we have discussed two type II like bursts at t…
Shape of solar cycles and mid-term solar activity oscillations
D. D. Sokoloff, A. S. Shibalova, V. N. Obridko +1
The evolution of the solar activity comprises, apart from the well-known 11-year cycle, various temporal scales ranging from months up to the secondary cycles known as mid-term osc…
Estimates of current helicity and tilt of solar active regions and Joy's law
K. Kuzanyan, N. Kleeorin, I. Rogachevskii +2
The tilt angle, current helicity and twist of solar magnetic fields can be observed in solar active regions. We carried out estimates of these parameters by two ways. Firstly, we c…
Wavelet analysis of the long-term activity of V833 Tau
R. Stepanov, N. I. Bondar', M. M. Katsova +2
The bulk of available stellar activity observations is frequently checked for the manifestation of signs in comparison with the known characteristic of solar magnetic modulation. T…
On the Relationship Between Transit Time of ICMEs and Strength of the Initiated Geomagnetic Storms
I. M. Chertok
More than 140 isolated non-recurrent geomagnetic storms (GMSs) of various intensities from extreme to weak are considered, which are reliably identified with solar eruptive sources…
Failed prominence eruptions near 24 cycle maximum
B. Filippov
We analyze 16 failed filament eruptions observed near 24 solar cycle maximum from May 2013 to July 2014. No significant rotation of filament spines is observed during the ascent in…