Physics
1. The Effect of Laser Shots on Morphological and Optical Properties of Copper Oxide NPs Prepared by Nd-Yag Laser of 1064 nm Wavelengths in Distilled Water

Mahmood M Kareem

Volume 3, Issue 2 , Summer and Autumn 2021, , Pages 200-206

http://dx.doi.org/doi:10.24271/psr.33

Abstract
  This study examines the synthesis of copper oxide nanoparticles (NPs) by using a Q-Switched Nd-Yag (1064 nm) laser on copper foil immersed in Distilled Water (DW). The solution color changed to light green refers to the production of copper oxide NPs. The generated nanoparticles were studied to determine ...  Read More

2. A Comparison of Supermassive Black Hole Mass of NGC 4151 Using Different Methods

Ismaeel A. Al-Baidhany; Sami Salman Chiad; Mahmood M. Kareem; Wasmaa A. Jabbar; Tahseen H. Mubarak; Nadir Fadhil Habubi; Ehssan S. Hassan; Mohamed Odda Dawood; Oday Mazin Abdulmunem

Volume 2, Issue 1 , Winter and Spring 2020, , Pages 22-26

http://dx.doi.org/10.24271/psr.06

Abstract
  We found a new value of supermassive black hole (SMBH) mass in the middle of type 1 Seyfert, NGC 4151 galaxy. In this Study, the image of NGC 4151 galaxy was deprojected to face-on, using spiral galaxy of face-on, and applied IRAF to calculate the ellipticity and position angle of major-axis.  A ...  Read More