Abstract Details
| Name: LABANI MALLICK Affiliation: IUCAA, Pune Conference ID: ASI2016_547 Title : RMS Spectral Modelling – a powerful tool to probe the origin of variability in AGN Authors and Co-Authors : Gulab C. Dewangan, IUCAA, Pune Abstract Type : Poster Abstract Category : Extragalactic astronomy Abstract : The broadband energy spectra of Active Galactic Nuclei (AGN) are very complex in nature with contribution from many ingredients: accretion disk, corona, jets, broad-line region (BLR), narrow-line region (NLR) and Compton-thick absorbing cloud or TORUS. Therefore energy spectral modelling can encounter degeneracy problem, e.g, it is not well understood whether the broad Fe K line feature near 5-7 keV is due to blurred reflection or complex absorption and hence mean spectral study is not sufficient to distinguish between the nature of variability produced by different components. The origin of variability could be pivoting of the primary continuum, reflection and/or absorption. The study of RMS (Root Mean Square) spectra would help us to connect the energy spectra with variability. In this work, we study the energy dependent variability of AGN by developing theoretical RMS spectral model in ISIS (Interactive Spectral Interpretation System) for different input energy spectra. In this talk, I would like to present results of RMS spectral modelling for few radio-loud and radio-quiet AGN observed by XMM-Newton, Suzaku, NuSTAR and ASTROSAT and will probe the dichotomy between these two classes of AGN. |