Abdullah Kamil Ahmed  <br/><br/>
Detailed BVRI CCD photometric studies of some spiral galaxies /  
 BVRI كاميرا فى النطاقات CCDدرات    اات ا ام اـــــ   
Abdullah Kamil Ahmed ; Supervised Magdy Youssef Amin , Gamal Bakr Ali  
 - Cairo :   Abdullah Kamil Ahmed ,   2014 
 - 113 P. :   charts , facsimiles ;   25cm 
<br/><br/>Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Astronomy and Meteorology  
<br/><br/> We have performed detailed BVRI surface photometry of the five spiral  galaxies NGC 2339, 2590, 7339, 7537, and 7541, then we have analyzed the  overall structure of the galaxies (a bulge, a bar, a ring, and spiral arms), together  with isophotal contour maps, luminosity profiles and performed a bulge/disk  decomposition of the galaxies images, although we have estimated the disk  position angles, ellipticities and inclinations of the galaxies, it is favorable for  investigating the brightness and color distributions over the disks of the  galaxies. We also estimated the photometric parameters and total luminosity of  the galactic bulge and disk. Also, we estimated the color indices and total  magnitude 
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<br/><br/><label>Subjects--Index Terms: </label>Galaxies Spiral Galaxies  Surface Photometry