Abstract Details
| Name: Priyanka Rani Affiliation: JRF Conference ID: ASI2016_608 Title : Correlation between X-ray and optical flux variations in AGN Authors and Co-Authors : C.S.Stalin, Associate Professor Abstract Type : Poster Abstract Category : Extragalactic astronomy Abstract : One of the long standing problems in active galactic nuclei (AGN) is a clear understanding on the relation between optical and X-ray flux variations in Seyfert 1 galaxies, a category of AGN. This lack of knowledge is mainly due to the non-availability of quality and simultaneous optical and X-ray observations. Two main theories exist in literature on the connection between optical and X-ray flux variations in AGN, namely (a) optical photons are the reprocessed X-ray photons and (b) X-ray photons are the Compton upscattered optical photons. If either of the above two models are correct, then their effects could be observable in the flux variations displayed by AGN. Therefore, an effective approach to constrain the validity of the above two models is to carry out a systematic study on the correlations between optical and X-ray flux variations. We have carried out a systematic study on the optical and X-ray flux variations on a sample of about a dozen AGN. The observational data used in this work are from Swift and XMM-Netwon. Details of this work will be presented. |