Abstract Details
| Name: Ayesha Anjum Affiliation: Christ University Conference ID: ASI2015_500 Title : Model based study of active galactic nuclei in optical and UV bands Authors and Co-Authors : Rahna P. T. (1), Gudennavar S. B. (1*), Bubbly S. G. (1), Rajesh Gopal (2) and Jayant Murthy (3) (1) Department of Physics, Christ University, Bangalore-560029, Karnataka (2) Department of Physics, CMR Institute of Technology, Bangalore-560037, Karnataka (3) Indian Institute of Astrophysics, II Block, Koramangala, Bangalore 560 034, Karnataka *Correspondence to: shivappa.b.gudennavar@christuniversity.in Abstract Type : Poster Abstract Category : Extragalactic astronomy Abstract : There has been a considerable interest globally put-in by researchers to understand properties, structure and evolution of active galactic nuclei (AGN). AGN are the mostly studied luminous objects recently and are the developing counterparts of elliptical and spiral galaxies. We report here our results on the structure and formation of AGN and the role of central SMBH in the evolution of such AGN. Spectral energy distribution (SED) modelling is one of the best ways to study the structure, properties and evolution of such galaxies. We have studied a small sample of objects using CIGALE and have attempted to obtain physical properties of these objects. The optical data of these objects were taken from Sloan Digital Sky Survey (SDSS) and ultraviolet (UV) data from Galaxy Emission Explorer (GALEX). Python version of code investigating galaxy emission (CIGALE) is a recent tool capable of extracting fundamental physical photometric properties of AGN such as the star formation rate, redshift and luminosity of its host galaxy. pCIGALE operates in wavebands extending from far infrared to far ultraviolet. Spectroscopic properties such as the line profiles, emission and absorption properties can be dealt with using spectroscopic data available online specially from SDSS. The photometric and spectroscopic properties of them were obtained using model based analysis. |