<正>A technique for obtaining a three-dimensional distribution of received pho- tons in Hα flares in the solar atmosphere is presented.It is well known that du
The initial period of a pulsar is an important factor in our understandingof the formation of neutron stars and of the nature of the equation of state of neutro
For a composite system of gravitationally coupled stellar and gaseous discs, we have carried out a linear stability analysis for axisymmetric coplanar perturbat
A theoretical model for explaining the O'Connell effect of close binarystars is given based on the hypothesis that the circumstellar material of a binarysys