%0 Journal Article
%A J. Ghanbari,
%A A. Khesali,
%T A Model for the Dynamical and Ionization Structure of Planetary Nebula IC 418
%J Iranian Journal of Physics Research
%V 1
%N 2
%U http://ijpr.iut.ac.ir/article-1-316-en.html
%R
%D 1997
%K
%X The interacting two winds model and a spherical density distribution function are introduced to study the dynamical and ionization structure of the planetary nebula IC 418. A fast wind with a mechanical luminousity 2/34×1034erg.s-1 of interacts with a super wind with a mass-loss rate of 2×10-5M(°)yr-1 and a velocity of 10 , and produces a dense and luminous medium. In this model, the expansion velocities of OI and HI lines are predicted to be 11 and 10.5kms-1 , respectively. The calculated dynamical time-scale 1033yr for the nebula is in good agreement with the evolution time of the central star after the interaction of the two winds. Our calculations give a luminosity 0.05M(°)of for the central star
%> http://ijpr.iut.ac.ir/article-1-316-en.pdf
%P 103-109
%& 103
%!
%9 Research
%L A-10-1-316
%+
%G eng
%@ 1682-6957
%[ 1997