TY - JOUR ID - TI - THE DYNAMIC EVOLUTION OF THE SHELL NEBULAE BY USING INTERACTING WIND MODEL AU - Sundus A. Abdullah سندس عبد الله AU - Mohamed A. Abutaib محمد ابو الطيب AU - Nathera A. Ali نذير علي AU - Behaa T.Jiaad بهاء جياد PY - 2012 VL - IS - Special SP - 24 EP - 30 JO - Basic Education College Magazine For Educational and Humanities Sciences مجلة كلية التربية الأساسية للعلوم التربوية والإنسانية SN - 23043717 23128003 AB - Planetary Nebulae (PN) are astronomical objects made up primarily of gaseous materials. A planetary nebulae are an emission nebulae consisting of an expanding glowing shell of ionized gas ejected during the Asymptotic Giant Branch (AGB) phase. of certain types of stars late in their life. late in their life

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