Informazioni sull’evento

02/09/2018

Attenzione: a seguito delle disposizioni per il contenimento della diffusione del coronavirus, i seminari saranno in modalità online. Il link per il collegamento verrà reso disponibile nei giorni precedenti la data del seminario. Qui, invece, la playlist dei remote talks già messi in rete »

Astrophysics Talk

Optical spectroscopy of type-1 AGN LINERs

Sara Cazzoli (Instituto de Astrofísica de Andalucía)

Tuesday 26/02/2019 @ 14:00, Sala IV piano Battiferro

In this talk, I will present highlights from our recent study of 22 local (z < 0.025) type-1 LINERs from the Palomar Survey, on the basis of optical long-slit spectroscopic observations taken with TWIN/CAHA, ALFOSC/NOT and HST/STIS (Cazzoli et al. 2018, MNRAS 480, 1106–1162). In this study, we explored the AGN-nature of these type-1 LINERs by studying the broad (BLR-originated) H? component. Then, we derived reliable interpretation for the different component of emission lines by studying their kinematics and ionization mechanism. Finally, we studied the neutral gas in the nuclei of these LINERs by modeling of the NaD absorption.