دراســـــة الكثــــافة السطـحية لقــرص تــراكم كبـــــلري

Abstract

Accretion Disk is an Astrophysical phenomenon that attracts many researcher's attention. This study aims at investigating the surface density of Accretion Disk. Therefore, the study is divided into two parts the first one is theoretical gives a general overview of Accretion Disk, how its forms and its types. Whereas the second part calculates the development of the surface density of the Accretion Disk based on the laws of mass retention and angular momentum. Finally, finding solutions under viscosity conditions and drawing them through the Matlab program and discussing them to compare the results with published works. The results were satisfactory.