Several generalizations of the well-known fluid model of Braginskii (1965) are considered. We use the Landau collisional operator and the moment method of Grad...

In our previous paper, we employed the Landau collisional operator together with the moment method of Grad and considered various generalizations of the...

We show that a wide variety of processes lead, in certain limit, to a simple generalization of the negative binomial distribution. Its properties are studied in...

We consider a generalized statistical mechanics model for the creation process of cosmic rays which takes into account local temperature fluctuations. This...

The physics of recombination lines in the He I singlet system is expected to be relatively simple, supported by accurate atomic models. We examine the...

A new method is developed to calculate the amplitude of the galactic warps generated by a torque due to external forces. This takes into account that the warp...

Context. Solar jets are collimated plasma flows moving along magnetic field lines and are accelerated at low altitude following magnetic reconnection. Several...

Crater morphology and surface age of asteroid (162173) Ryugu are characterized using the high-resolution images obtained by the Hayabusa2 spacecraft. Our...