Tag Archives: Galaxies

STATISTICAL STUDY FOR ACTIVE GALAGTIC NUCLEI FROM SDSS: DR9-DR10 (Published)

We analyze a sample of 4646 broad-line AGN and 3330 neighboring _ AGN from SDSS, Data Release: DR9-DR10 within the redshifts range 0 < z < 0.2.We have been studied the distribution of the galaxies-quasars in the redshifts – absolute magnitude plans: (z-Mu) plan and (z-Mr) plan, absolute magnitude distribution of the objects in the sample, and the redshifts distribution.We have also split the sample depending on their color U-R into two groups of blue galaxies with U-R<2.2 mag and red Galaxies with U-R>2.2 mag.Our results show that the galaxies in the range of Mu are more luminous than galaxies in the range of Mr. we also show that the majority number of the objects in the sample are red galaxies with U-R>2.2 mag and most of the quasars are red luminous objects distribute around the red galaxies at high redshift range of 0.1≤z<0.2.

Keywords: AGN, Galaxies, Quasars