62 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institute of Terrestrial Magnetism Ionosphere and Radio Wave PropagationRU23 papers
- Lomonosov Moscow State UniversityRU20 papers
- Russian Academy of SciencesRU12 papers
- Moscow Center For Continuous Mathematical EducationRU8 papers
- Moscow Institute of Physics and TechnologyRU5 papers
- Institute of AstronomyRU4 papers
- Pulkovo ObservatoryRU4 papers
- State Research Center of the Russian FederationRU4 papers
- The University of SydneyAU4 papers
- Ben-Gurion University of the NegevIL3 papers
- Institute for High Pressure PhysicsRU3 papers
- Institute for Nuclear ResearchRU3 papers
14 papers · 1 filter
Cycle Variation in the Occurrence of Great Soft X-ray Solar Flares
V. N. Obridko, M. M. Katsova, D. D. Sokoloff
Powerful nonstationary processes such as flares and coronal mass ejections are detected mainly near the solar cycle maxima. However, the analysis of the great flares since 1975, wh…
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…
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…
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…
A Catalog of Bipolar Active Regions Violating the Hale Polarity Law, 1989-2018
A. Zhukova, A. Khlystova, V. Abramenko +1
There is no list of bipolar active regions (ARs) with reverse polarity (anti-Hale regions), although statistical investigations of such ARs (bearing the imprint of deep subphotosph…
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…
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…
Cyclic variations in the main components of the solar large-scale magnetic field
V. N. Obridko, D. D. Sokoloff, B. D. Shelting +2
We considered variations the dipole and the quadrupole components of the solar large-scale magnetic field. Both the axial and the equatorial dipoles exhibit a systematic decrease i…
A short and sudden increase of the magnetic field strength and the accompanying spectral variability in the O9.7V star HD54879
S. Hubrig, M. Kueker, S. P. Jarvinen +4
Only eleven O-type stars have been confirmed to possess large-scale organized magnetic fields. The presence of a -600G longitudinal magnetic field in the O9.7V star HD54879 with a…
Combining multiple structural inversions to constrain the Solar modelling problem
G. Buldgen, S. J. A. J. Salmon, A. Noels +12
The Sun is the most studied of all stars. It is a reference for all other observed stars and a laboratory of fundamental physics helping us understand processes occuring in conditi…
Equation of state SAHA-S meets stellar evolution code CESAM2k
V. A. Baturin, W. Dappen, P. Morel +6
We present an example of an interpolation code of the SAHA-S equation of state that has been adapted for use in the stellar evolution code CESAM2k. The aim is to provide the necess…