Capturing dual AGN activity and kiloparsec-scale outflows in IRAS 20210+1121

Abstract

The most standard scenario for the evolution of massive galaxies across cosmic time assumes a correspondence based on the interplay between active galactic nuclei (AGN) feedback, which injects large amounts of energy into the host environment, and galaxy mergers, with their ability to trigger massive star formation events and accretion onto supermassive black holes. Interacting systems hosting AGN are useful laboratories for obtaining key insights into both phenomena. In this context, we present an analysis of the optical spectral properties of IRAS 20210+1121 (I20210), a merging system at z = 0.056. According to X-ray data, this object comprises two interacting galaxies, each hosting an obscured AGN. The optical spectra confirm the presence of AGN features in both galaxies. In particular, we are able to provide a Seyfert classification for I20210 North. The spectrum of I20120 South shows broad blueshifted components associated with the most intense emission lines that indicate the presence of an ionized outflow, for which we derive a maximum velocity of ∼2000 km s−1, an extension of ∼2 kpc, and a mass rate of ∼0.6 M⊙ yr−1. We also report the existence of an ionized nebular component with v ∼ 1000 km s−1 at ∼6.5 kpc southwards of I20210 South, which can be interpreted as disrupted gas ejected from the host galaxy by the action of the outflow. I20120 therefore exhibits a double obscured AGN, with one of them showing evidence of ongoing events for AGN-powered outflows. Future spatially resolved spectroscopy will allow for an accurate mapping of the gas kinematics in this AGN pair and evaluate the impact of the outflow on both the interstellar medium and the galaxy environment.

Unexplored outflows in nearby low luminosity AGNs

“…The different gas phases of outflows have been widely studied in different galaxy populations (Veilleux et al 2005(Veilleux et al , 2020, for reviews) mostly via long-slit spectroscopy (e.g. Heckman et al 2000;Rupke et al 2002;Arribas et al 2014;Villar-Martín et al 2018;Rose et al 2018;Hernández-García et al 2019;Saturni et al 2021) and integral field spectroscopy (IFS, e.g. Cazzoli et al 2014;Cresci et al 2015;Ramos Almeida et al 2017;Maiolino et al 2017;Bosch et al 2019;Perna et al 2020Perna et al , 2021Comerón et al 2021) observations.…”

A 3.8yr optical quasi-periodic oscillations in blue quasar SDSS J132144+033055 through combined light curves from CSS and ZTF

“…★ Contact e-mail: aexueguang@qq.com Piconcelli et al (2010); Nardini (2017); Kollatschny et al (2020); Saturni et al (2021); Severgnini et al (2021). More recently, Zhang (2021d) have reported the different broad Balmer emission line features as the sign to support a central BBH systems in SDSS J154751.94+025550.8 with double-peaked broad H but singlepeaked broad H .…”

Unexplored outflows in nearby low luminosity AGNs: the case of NGC 1052

“…The different gas phases of outflows have been widely studied in different galaxies populations (Veilleux et al 2005(Veilleux et al , 2020, for reviews) mostly via long-slit spectroscopy (e.g. Heckman et al 2000;Rupke et al 2002;Arribas et al 2014;Villar-Martín et al 2018;Rose et al 2018;Hernández-García et al 2019;Saturni et al 2021) and Integral Field Spectroscopy observations (IFS, e.g. Cazzoli et al 2014;Cresci et al 2015;Ramos Almeida et al 2017;Maiolino et al 2017;Bosch et al 2019;Perna et al 2020Perna et al , 2021Comerón et al 2021).…”