Giovanni La Mura

Long-Term Monitoring of the Broad-Line Region Properties in a Selected Sample of AGN

We present the results of the long-term optical monitoring campaign of active galactic nuclei (AGN) coordinated by the Special Astrophysical Observatory of the Russian Academy of Science. This campaign has produced a remarkable set of optical spectra, since we have monitored for several decades different types of broad-line (type 1) AGN, from a Seyfert 1, double-peaked line, radio loud and radio quiet AGN, to a supermassive binary black hole candidate. Our analysis of the properties of the broad line region (BLR) of these objects is based on the variability of the broad emission lines. We hereby give a comparative review of the variability properties of the broad emission lines and the BLR of seven different type 1 AGNs, emphasizing some important results, such as the variability rate, the BLR geometry, and the presence of the intrinsic Baldwin effect. We are discussing the difference and similarity in the continuum and emission line variability, focusing on what is the impact of our results to the supermassive black hole mass determination from the BLR properties.

An Orientation-Based Unification of Young Jetted AGN: The Case of 3C 286

In recent years, the old paradigm according to which only high-mass black holes can launch powerful relativistic jets in active galactic nuclei (AGN) has begun to crumble. The discovery of

Unveiling the submerged part of the iceberg: radio-loud narrow-line Seyfert 1s with SKA

\gamma

Detailed Analysis of Balmer Lines in a Selected Sample of 90 Broad Line AGN

-rays coming from narrow-line Seyfert 1 galaxies (NLS1s), usually considered young and growing AGN harboring a central black hole with mass typically lower than 10

Extended narrow-line region in Seyfert galaxies

^8

Relativistic plasmas in AGN jets

M

Broad emission lines: A tool for studying nuclei of active galaxies

_\odot

Multi-Frequency Databases for AGN Investigation—Results and Perspectives

, indicated that also these low-mass AGN can produce powerful relativistic jets. The search for parent population of

Optical Counterparts of Undetermined Type γ-Ray Active Galactic Nuclei with Blazar-Like Spectral Energy Distributions

\gamma

The role of Narrow Line Seyfert 1 galaxies in the frame of the AGN Unified Model

-ray emitting NLS1s revealed their connection with compact steep-spectrum sources (CSS). In this proceeding we present a review of the current knowledge of these sources, we present the new important case of 3C 286, classified here for the fist time as NLS1, and we finally provide a tentative orientation based unification of NLS1s and CSS sources.