Sample Sidebar Module

This is a sample module published to the sidebar_top position, using the -sidebar module class suffix. There is also a sidebar_bottom position below the menu.

Sample Sidebar Module

This is a sample module published to the sidebar_bottom position, using the -sidebar module class suffix. There is also a sidebar_top position below the search.
قسم الفلك والفضاء

فراس عبد الكريم عبد الرزاق

Email: firasalaubidy@yahoo.com

 Abstract:

The spiral galaxy is basically a disk of stars with large central bulge and halo. In this paper density distribution profiles of bulge, disk with arms and dark halo of  spiral  Galaxy are discussed , also in this paper the new profile of  dark matter density distribution can be suggested, and then  plot spiral galaxy such as the Milky Way  rotation curve for above components. The results show that the new profile of dark matter density distribution provides a good agreement with the observed rotation curve of Milky Way galaxy.