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Big-bang and meteors
Rajchl, Jaroslav
Several common features present both so different phenomena as are big bang and meteors are emphasized and discussed. It shows that the joint factor is the explosive nature of both processes.
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Large-scale dynamics on the Sun
Ambrož, Pavel
New results about the temporal evolution of the large-scale back-ground distribution of magnetic flux on the Sun are presented. Besides the generally accepted axially symmetrc differential rotation also the non-symmetric component o the horizontal transport velocity was found. The horizontl flow with highly organized structure of the flow pattern should be explained by Rossby waves and eddies, generatedin the whole spherical shell of the convection zone.
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The role of mass-loss in dynamics of spiral galaxies
Jungwiert, Bruno ; Combes, F. ; Palouš, Jan
A new N-body sticky-particles computer code for spiral galaxies is presented. The substantial improvement over existing models is the scheme for the bi-directional mass exchange between gas and stars: the cosumption of the former by star formation is taken into account by locking aq fraction of gas in newly created stars while the mass-loss from stars via stellar winds and supernova explosions is implemented as time dependent over the Hubble time.
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