Low-Power AGN

Disentangling the relative contributions to the bulk X-ray emission from jet and accretion flow is a crucial step for shedding light on the AGN central engine and explore the nature of accretion in radio-loud objects. In recent years, I have started a systematic study of the X-ray spectral and temporal properties of a sample of radio galaxies, with the aim of discriminating between the competing scenarios. In particular, making use of proprietary and archival XMM and Chandra data, I have focused on low-power radio galaxies hosting LINERs, which may represent the link between powerful AGN and normal galaxies. In order to assess the role played by the jet in the X-ray energy range, I have also carried out a complementary approach based on the systematic comparison between the long-term temporal and spectral variability properties of the jet-dominated sources and accretion-dominated AGN. This kind of investigation makes use of proprietary and archival data of blazars, radio galaxies, and Seyfert galaxies that have been regularly monitored by RXTE for years. Most recently, I have worked on AGN detection in dwarf and bulgeless galaxies, which may play an important role in our understanding of the supermassive black hole growth and galaxy evolution.


Back to