Obscured active galactic nuclei

RC Hickox, DM Alexander - Annual Review of Astronomy and …, 2018 - annualreviews.org
Active galactic nuclei (AGN) are powered by the accretion of material onto a supermassive
black hole (SMBH) and are among the most luminous objects in the Universe. However, the …

Ionized outflows from active galactic nuclei as the essential elements of feedback

S Laha, CS Reynolds, J Reeves, G Kriss… - Nature …, 2021 - nature.com
Outflows from active galactic nuclei (AGNs) are one of the fundamental mechanisms by
which the central supermassive black hole interacts with its host galaxy. Detected in≥ 50 …

Cosmic Reionization in the JWST Era: Back to AGNs?

P Madau, E Giallongo, A Grazian… - The Astrophysical …, 2024 - iopscience.iop.org
Deep surveys with the James Webb Space Telescope (JWST) have revealed an emergent
population of moderate-luminosity, broad-line active galactic nuclei (AGNs) at 4≲ z≲ 13 …

BASS. XXII. The BASS DR2 AGN Catalog and Data

MJ Koss, C Ricci, B Trakhtenbrot, K Oh… - The Astrophysical …, 2022 - iopscience.iop.org
We present the active galactic nucleus (AGN) catalog and optical spectroscopy for the
second data release of the Swift BAT AGN Spectroscopic Survey (BASS DR2). With this DR2 …

Supermassive black holes at high redshift are expected to be obscured by their massive host galaxies' interstellar medium

R Gilli, C Norman, F Calura, F Vito, R Decarli… - Astronomy & …, 2022 - aanda.org
We combine results from deep ALMA observations of massive (M*> 10 10 M⊙) galaxies at
different redshifts to show that the column density of their interstellar medium (ISM) rapidly …

BAT AGN spectroscopic survey. V. X-ray properties of the Swift/BAT 70-month AGN catalog

C Ricci, B Trakhtenbrot, MJ Koss, Y Ueda… - The Astrophysical …, 2017 - iopscience.iop.org
Hard X-ray (≥ 10 keV) observations of active galactic nuclei (AGNs) can shed light on some
of the most obscured episodes of accretion onto supermassive black holes. The 70-month …

Changing-look active galactic nuclei

C Ricci, B Trakhtenbrot - Nature Astronomy, 2023 - nature.com
Active galactic nuclei (AGNs) are known to show flux variability over all observable
timescales and across the entire electromagnetic spectrum. Over the past decade, a growing …

Cold molecular outflows in the local Universe and their feedback effect on galaxies

A Fluetsch, R Maiolino, S Carniani… - Monthly Notices of …, 2019 - academic.oup.com
We study molecular outflows in a sample of 45 local galaxies, both star forming and active
galactic nucleus (AGN), primarily by using CO data from the Atacama Large Millimeter …

The Galaxy Activity, Torus, and Outflow Survey (GATOS)-I. ALMA images of dusty molecular tori in Seyfert galaxies

S García-Burillo, A Alonso-Herrero, CR Almeida… - Astronomy & …, 2021 - aanda.org
We present the first results of the Galaxy Activity, Torus, and Outflow Survey (GATOS), a
project aimed at understanding the properties of the dusty molecular tori and their …

Redefining the torus: a unifying view of AGNs in the infrared and submillimeter

SF Hönig - The Astrophysical Journal, 2019 - iopscience.iop.org
The advent of high-angular-resolution IR and submillimeter interferometry allows for
spatially resolved observations of the parsec-scale environment of active galactic nuclei …