Zobrazeno 1 - 10
of 669
pro vyhledávání: '"Stepanov R"'
Publikováno v:
Magnetohydrodynamics 58 (2022), pp. 285-292
A possible explanation for the apparent phase stability of the 11.07-year Schwabe cycle of the solar dynamo was the subject of a series of recent papers. The synchronization of the helicity of an instability with azimuthal wavenumber m=1 by a tidal m
Externí odkaz:
http://arxiv.org/abs/2209.07173
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. The problem is that stellar activity records are usually an order of ma
Externí odkaz:
http://arxiv.org/abs/2005.11136
Guided by the working hypothesis that the Schwabe cycle of solar activity is synchronized by the 11.07 years alignment cycle of the tidally dominant planets Venus, Earth and Jupiter, we reconsider the phase diagrams of sediment accumulation rates in
Externí odkaz:
http://arxiv.org/abs/2004.10028
Numerous analyses suggest the existence of various quasi-periodicities in solar activity. The power spectrum of solar activity recorded in sunspot data is dominated by the $\sim$11-year quasi-periodicity, known as the Schwabe cycle. In the mid-term r
Externí odkaz:
http://arxiv.org/abs/1911.06881
Publikováno v:
Magnetohydrodynamics, Vol. 56, No. 2/3, pp. 269-280, 2020
Aiming at a consistent planetary synchronization model of both short-term and long-term solar cycles, we start with an analysis of Schove's historical data of cycle maxima. Their deviations (residuals) from the average cycle duration of 11.07 years s
Externí odkaz:
http://arxiv.org/abs/1910.10383
We perform direct numerical simulations of magnetohydrodynamic (MHD) turbulence with kinetic energy and cross helicity injections at large scales. We observe that the cross helicity changes sign as we go from large and intermediate scales to small sc
Externí odkaz:
http://arxiv.org/abs/1902.08253
Publikováno v:
A&A 585, A21 (2016)
Isotropic and anisotropic wavelet transforms are used to decompose the images of the spiral galaxy M83 in various tracers to quantify structures in a range of scales from 0.2 to 10 kpc. We used radio polarization observations at {\lambda}6 cm and 13
Externí odkaz:
http://arxiv.org/abs/1510.00746
The electric current helicity density $\displaystyle \chi=\langle\epsilon_{ijk}b_i\frac{\partial b_k}{\partial x_j}\rangle$ contains six terms, where $b_i$ are components of the magnetic field. Due to the observational limitations, only four of the a
Externí odkaz:
http://arxiv.org/abs/1509.02652
Autor:
Sun, X. H., Rudnick, L., Akahori, Takuya, Anderson, C. S., Bell, M. R., Bray, J. D., Farnes, J. S., Ideguchi, S., Kumazaki, K., O'Brien, T., O'Sullivan, S. P., Scaife, A. M. M., Stepanov, R., Stil, J., Takahashi, K., van Weeren, R. J., Wolleben, M.
(abridged) We run a Faraday structure determination data challenge to benchmark the currently available algorithms including Faraday synthesis (previously called RM synthesis in the literature), wavelet, compressive sampling and $QU$-fitting. The fre
Externí odkaz:
http://arxiv.org/abs/1409.4151
Context. Observations of polarized radio emission show that large-scale (regular) magnetic fields in spiral galaxies are not axisymmetric, but generally stronger in interarm regions. In some nearby galaxies such as NGC 6946 they are organized in narr
Externí odkaz:
http://arxiv.org/abs/1307.1258