Photometrie photographique de la couronne solaire

Solar Physics - A series of plates of the solar corona were obtained during the total solar eclipse of July 10th, 1972 near Anadyr (U.S.S.R.) using a standard eclipse coronagraph of Ø = 20 cm...     

Dynamics of artificial plasma clouds in “Spolokh” experiments: Movement pattern

The data on space location and movement of the high-density (n_c? n_b) barium clouds injected at midlatitudes during the “Spolokh-1” and “Spolokh-2” shaped-charge experiments in the ionosphere are presented. At the initial stage, the neutral and ionized components move together at a speed of the neutral wind. An outflow of ions in the form of a stratified tail was also observed. Its movement is interpreted as a drift in [E₀ × B] fields. The evolution pattern of artificial plasma clouds agrees with the qualitative scheme described in the paper.