Active galactic nuclei: what's in a name?

P Padovani, DM Alexander, RJ Assef… - The Astronomy and …, 2017 - Springer
Active galactic nuclei (AGN) are energetic astrophysical sources powered by accretion onto
supermassive black holes in galaxies, and present unique observational signatures that …

The many flavours of photometric redshifts

M Salvato, O Ilbert, B Hoyle - Nature Astronomy, 2019 - nature.com
Since more than 70 years ago, the colours of galaxies derived from flux measurements at
different wavelengths have been used to estimate their cosmological distances. Such …

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 …

x-cigale: fitting AGN/galaxy SEDs from X-ray to infrared

G Yang, M Boquien, V Buat, D Burgarella… - Monthly Notices of …, 2020 - academic.oup.com
ABSTRACT Code Investigating GALaxy Emission (cigale) is a powerful multiwavelength
spectral energy distribution (SED) fitting code for extragalactic studies. However, the current …

X-ray spectral modelling of the AGN obscuring region in the CDFS: Bayesian model selection and catalogue

J Buchner, A Georgakakis, K Nandra, L Hsu… - Astronomy & …, 2014 - aanda.org
Context. Aims. Active galactic nuclei are known to have complex X-ray spectra that depend
on both the properties of the accreting super-massive black hole (eg mass, accretion rate) …

Quasars as standard candles-III. Validation of a new sample for cosmological studies

E Lusso, G Risaliti, E Nardini, G Bargiacchi… - Astronomy & …, 2020 - aanda.org
We present a new catalogue of∼ 2400 optically selected quasars with spectroscopic
redshifts and X-ray observations from either Chandra or XMM–Newton. The sample can be …

Photometric redshifts for Hyper Suprime-Cam Subaru strategic program data release 1

M Tanaka, J Coupon, BC Hsieh, S Mineo… - Publications of the …, 2018 - academic.oup.com
Photometric redshifts are a key component of many science objectives in the Hyper Suprime-
Cam Subaru Strategic Program (HSC-SSP). In this paper, we describe and compare the …

The evolution of the X-ray luminosity functions of unabsorbed and absorbed AGNs out to z∼ 5

J Aird, AL Coil, A Georgakakis, K Nandra… - Monthly Notices of …, 2015 - academic.oup.com
We present new measurements of the evolution of the X-ray luminosity functions (XLFs) of
unabsorbed and absorbed active galactic nuclei (AGNs) out to z∼ 5. We construct samples …

Identifying luminous active galactic nuclei in deep surveys: revised IRAC selection criteria

JL Donley, AM Koekemoer, M Brusa… - The Astrophysical …, 2012 - iopscience.iop.org
Spitzer/IRAC selection is a powerful tool for identifying luminous active galactic nuclei
(AGNs). For deep IRAC data, however, the AGN selection wedges currently in use are …

The eROSITA Final Equatorial-Depth Survey (eFEDS)-Identification and characterization of the counterparts to point-like sources

M Salvato, J Wolf, T Dwelly, A Georgakakis… - Astronomy & …, 2022 - aanda.org
Context. In November 2019, eROSITA on board of the Spektrum-Roentgen-Gamma (SRG)
observatory started to map the entire sky in X-rays. After the four-year survey program, it will …