Broadband Multiwavelength Emission of Low-luminosity AGNs
(or: how do supermassive black holes taking a nap look like?)
In order to probe the accretion and jet physical properties in low-luminosity active galactic nuclei as a class, I modeled the broadband radio to X-rays SEDs of 21 LINERs with a coupled ADAF-jet model (cf. figure; Nemmen et al. 2014, MNRAS; Mason et al 2014, ApJ; Nemmen et al. 2011, arXiv:1112.4640; Nemmen et al. 2006, ApJ, 643, 652). I found that the radio emission is severely underpredicted by ADAF models and is explained by the relativistic jet.
It is imperative to better observe and study/model this class of objects in all available wavelenghts, in order to better understand the complex physics at work. I have different projects aimed at advancing our understanding of supermassive black holes “taking a nap”, by making use of observations in different wavelenghts. I am also interested in computing new models of the electromagnetic signature of accreting black holes.
Optical Emission-lines From Accretion Disks and their Time-evolution
Spectral Energy Distributions of Luminous AGNs and Quasars