Formation of large-scale magnetic structures associated with theFermibubbles

Magnetic fluctuations and formation of large-scale inhomogeneous magnetic structures in a turbulent convection.

Magnetic fluctuations generated by a tangling of the mean magnetic field by velocity fluctuations are studied in a developed turbulent convection with large magnetic Reynolds numbers. We show that the energy of magnetic fluctuations depends on the magnetic Reynolds number only when the mean magnetic field is smaller than B(eq)/4Rm(1/4), where B(eq) is the equipartition mean magnetic field deter...

Formation of Large Structures in the Acceleration Universe with a Hybrid Expansion Law

In the current paper, we have studied the effect of dark energy on for-mation where dark energy exists in the background. For this purpose, we used both WMAP9 and Planck data to study how the radius changes with redshift in these mod-els. We used different data sets to fix the cosmological parameters to obtain a solution for a spherical region under collapse. The mechanism of structure formation f...

Simulating large-scale structure formation with magnetic fields

In the past, different works based on numerical simulations have been presented to explain magnetic fields (MFs) in the large scale structure and within galaxy clusters. In this review, I will summarize the main findings obtained by different authors and even if many details are still unclear I will try to construct a consistent picture of our interpretation of largescale magnetic fields based ...

Large-scale atmospheric circulation patterns associated with the occurrence of severe storms Zab basin

Formation of large-scale semiorganized structures in turbulent convection.

A new mean-field theory of turbulent convection is developed by considering only the small-scale part of spectra as "turbulence" and the large-scale part, as a "mean flow," which includes both regular and semiorganized motions. The developed theory predicts the convective wind instability in a shear-free turbulent convection. This instability causes formation of large-scale semiorganized fluid ...