COSMOS2020: Investigating the AGN-obscured accretion phase at $z\sim 1$ via [NeV] selection

Abstract

We investigated the properties of 94 [NeV]3426AA-selected type 2 AGN in COSMOS at z=0.6-1.2, performing optical-to-far-infrared spectral energy distribution fitting. In addition, we analyze the X-ray spectra of the X-ray-detected sources to obtain reliable values of the AGN obscuration and intrinsic luminosity. We found that more than two-thirds of our sample is composed of very obscured sources, with about 20% of the sources being candidate CT-AGN and half being AGNs in a strong phase of accretion. With respect to non-active galaxies, we find a higher fraction of sources within the main sequence and little evidence for AGNs quenching the SF. The comparison with the prediction from the in situ co-evolution model suggests that [NeV] is an effective tool for selecting galaxies in the obscured growth phase of the BH-galaxy co-evolution paradigm. We find that the "quenching phase" is still to come for most of the sample and only few galaxies show evidence of quenched SF activity.

Accepted in A&A, 16 pages, 14 figures

References in corpus (41)

• The Cosmic Evolution Survey (COSMOS) -- Overview
• Star Formation in AEGIS Field Galaxies since z=1.1 : The Dominance of Gradually Declining Star Formation, and the Main Sequence of Star-Forming Galaxies
• A simple model to interpret the ultraviolet, optical and infrared emission from galaxies
• An Observational Determination of the Bolometric Quasar Luminosity Function
• zCOSMOS: A Large VLT/VIMOS redshift survey covering 0 < z < 3 in the COSMOS field
• The synthesis of the cosmic X-ray background in the Chandra and XMM-Newton era
• The Herschel view of the dominant mode of galaxy growth from z=4 to the present day
• Toward the Standard Population Synthesis Model of the X-Ray Background: Evolution of X-Ray Luminosity and Absorption Functions of Active Galactic Nuclei Including Compton-Thick Populations
• COSMOS2020: A panchromatic view of the Universe to $z\sim 10$ from two complementary catalogs
• The Chandra COSMOS Survey, I: Overview and Point Source Catalog
• Obscuration-dependent evolution of Active Galactic Nuclei
• The Mean Star Formation Rate of X-ray selected Active Galaxies and its Evolution from z=2.5: Results from PEP-Herschel
• GA-NIFS: A massive black hole in a low-metallicity AGN at $z\sim 5.55$ revealed by JWST/NIRSpec IFS
• X-CIGALE: fitting AGN/galaxy SEDs from X-ray to infrared
• Galaxy pairs in the Sloan Digital Sky Survey - IX: Merger-induced AGN activity as traced by the Wide-field Infrared Survey Explorer
• A definitive merger-AGN connection at z~0 with CFIS: mergers have an excess of AGN and AGN hosts are more frequently disturbed
• Fitting AGN/galaxy X-ray-to-radio SEDs with CIGALE and improvement of the code
• X-shooter reveals powerful outflows in z~1.5 X-ray selected obscured quasi stellar objects
• The Chandra COSMOS-Legacy survey: Source X-ray spectral properties
• No significant evolution of relations between Black hole mass and Galaxy total stellar mass up to z~2.5
• The Toroidal Obscuration of Active Galactic Nuclei
• The ALPINE-ALMA [CII] survey: Molecular gas budget in the Early Universe as traced by [CII]
• The Co-Formation of Spheroids and Quasars Traced in their Clustering
• Galaxy Evolution in the Radio Band: The Role of Starforming Galaxies and Active Galactic Nuclei
• Galaxy-wide outflows in z$\sim$1.5 luminous obscured QSOs revealed through NIR slit-resolved spectroscopy
• The Molecular Gas Reservoirs of $z\sim 2$ Galaxies: A comparison of CO(1-0) and dust-based molecular gas masses
• Obscured AGN at 1.5 < z < 3.0 from the zCOSMOS-deep Survey I. Properties of the emitting gas in the Narrow Line Region
• The Redshift Evolution of the $M_{\bullet }-M_{\star }$ Relation for JWST's Supermassive Black Holes at $z>4$
• BASS XXXII: Studying the Nuclear Mm-wave Continuum Emission of AGNs with ALMA at Scales $\lesssim$ 100-200 pc
• The properties of the AGN torus as revealed from a set of unbiased NuSTAR observations
• Ionized gas outflows in infrared-bright dust-obscured galaxies selected with WISE and SDSS
• The quest for Type 2 quasars: Chandra observations of luminous obscured quasars in the Sloan Digital Sky Survey
• A Catalog of AGN Host Galaxies Observed with HST/ACS: Correlations between Star Formation and AGN Activity
• The X-ray View of Merger-Induced AGN Activity at Low Redshift
• CLEAR: High-Ionization [Ne V] $\lambda$3426 Emission-line Galaxies at $1.4<z<2.3$
• The space density of Compton-thick AGN at z~0.8 in the zCOSMOS-Bright Survey
• Simulating the infrared sky with a Spritz
• The XMM deep survey in the CDFS XI. X-ray properties of 185 bright sources
• The role of SPICA-like missions and the Origins Space Telescope in the quest for heavily obscured AGN and synergies with Athena
• Mid-IR cosmological spectrophotometric surveys from space: Measuring AGN and star formation at the Cosmic Noon with a SPICA-like mission
• Gas and Stars in Galaxies - A Multi-Wavelength 3D Perspective

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• Narrow line AGN selection in CEERS: spectroscopic selection, physical properties, X-ray and radio analysis
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• Beyond Traditional Diagnostics: Identifying Active Galactic Nuclei with Spectral Energy Distribution Fitting in DESI Data
• Obscured and unobscured X-ray AGNs I: Host galaxy properties