Mohamed Hamdy Abdullah <br/><br/>
Studing the dynamical properties of some galaxy clusters /  
 دراسة الخصائص الديناميكية لبعض حشود المجرات 
Mohamed Hamdy Abdullah ; Supervised Mohamed A. Rassem , Gamal B. Ali 
 - Cairo :   Mohamed Hamdy Abdullah ,   2009 
 - 110Leaves :   charts , facsimiles ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Astronomy and Meteorology 
<br/><br/> Using the DR of SDSS we construct a sample of ٤٢٣٨٢ galaxies with redshifts in the region of 20 galaxy clusters reaching up to  ٥ . Using two successive iterative methods the adaptive kernel method and the spherical infall model we obtained ٥٦ members belonging to the studied sample . We present the two - dimensional optical map for each cluster using the adaptive kernel method to determine their centers 
<br/><br/>
<br/><br/><label>Subjects--Index Terms: </label>Clusters  Galaxies  General - cosmology