Type 2 AGN Host Galaxies in the Chandra-COSMOS Legacy Survey: No Evidence of AGN-driven Quenching

Hyewon Suh; Francesca Civano; Günther Hasinger; Elisabeta Lusso; Giorgio Lanzuisi; Stefano Marchesi; Benny Trakhtenbrot; Viola Allevato; Nico Cappelluti; Peter L. Capak; Martin Elvis; Richard E. Griffiths; Clotilde Laigle; Paulina Lira; Laurie Riguccini; David J. Rosario; Mara Salvato; Kevin Schawinski; Cristian Vignali

doi:10.3847/1538-4357/aa725c

Type 2 AGN Host Galaxies in the Chandra-COSMOS Legacy Survey: No Evidence of AGN-driven Quenching

Hyewon Suh
, Francesca Civano
, Günther Hasinger
, Elisabeta Lusso
, Giorgio Lanzuisi
, Stefano Marchesi
, Benny Trakhtenbrot
, Viola Allevato
, Nico Cappelluti
, Peter L. Capak
, Martin Elvis
, Richard E. Griffiths
, Clotilde Laigle
, Paulina Lira
, Laurie Riguccini
, David J. Rosario
, Mara Salvato
, Kevin Schawinski
, Cristian Vignali

Research output: Contribution to journal › Article › peer-review

Abstract

We investigate the star formation properties of a large sample of ∼2300 X-ray-selected Type 2 Active Galactic Nuclei (AGNs) host galaxies out to z ∼ 3 in the Chandra COSMOS Legacy Survey in order to understand the connection between the star formation and nuclear activity. Making use of the existing multi-wavelength photometric data available in the COSMOS field, we perform a multi-component modeling from far-infrared to near-ultraviolet using a nuclear dust torus model, a stellar population model and a starburst model of the spectral energy distributions (SEDs). Through detailed analyses of SEDs, we derive the stellar masses and the star formation rates (SFRs) of Type 2 AGN host galaxies. The stellar mass of our sample is in the range of 9 < log 1 M M stellar 2 with uncertainties of ∼0.19 dex. We find that Type 2 AGN host galaxies have, on average, similar SFRs compared to the normal star-forming galaxies with similar Mstellar and redshift ranges, suggesting no significant evidence for enhancement or quenching of star formation. This could be interpreted in a scenario, where the relative massive galaxies have already experienced substantial growth at higher redshift (z > 3), and grow slowly through secular fueling processes hosting moderate-luminosity AGNs.

Original language	English
Article number	102
Journal	Astrophysical Journal
Volume	841
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/aa725c
State	Published - 1 Jun 2017
Externally published	Yes

Keywords

black hole physics
galaxies: active
galaxies: nuclei
quasars: general

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-4357/aa725c

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Suh, H., Civano, F., Hasinger, G., Lusso, E., Lanzuisi, G., Marchesi, S., Trakhtenbrot, B., Allevato, V., Cappelluti, N., Capak, P. L., Elvis, M., Griffiths, R. E., Laigle, C., Lira, P., Riguccini, L., Rosario, D. J., Salvato, M., Schawinski, K., & Vignali, C. (2017). Type 2 AGN Host Galaxies in the Chandra-COSMOS Legacy Survey: No Evidence of AGN-driven Quenching. Astrophysical Journal, 841(2), Article 102. https://doi.org/10.3847/1538-4357/aa725c

@article{f9c49f06895c45f294fd41da482f658e,

title = "Type 2 AGN Host Galaxies in the Chandra-COSMOS Legacy Survey: No Evidence of AGN-driven Quenching",

abstract = "We investigate the star formation properties of a large sample of ∼2300 X-ray-selected Type 2 Active Galactic Nuclei (AGNs) host galaxies out to z ∼ 3 in the Chandra COSMOS Legacy Survey in order to understand the connection between the star formation and nuclear activity. Making use of the existing multi-wavelength photometric data available in the COSMOS field, we perform a multi-component modeling from far-infrared to near-ultraviolet using a nuclear dust torus model, a stellar population model and a starburst model of the spectral energy distributions (SEDs). Through detailed analyses of SEDs, we derive the stellar masses and the star formation rates (SFRs) of Type 2 AGN host galaxies. The stellar mass of our sample is in the range of 9 < log 1 M M stellar 2 with uncertainties of ∼0.19 dex. We find that Type 2 AGN host galaxies have, on average, similar SFRs compared to the normal star-forming galaxies with similar Mstellar and redshift ranges, suggesting no significant evidence for enhancement or quenching of star formation. This could be interpreted in a scenario, where the relative massive galaxies have already experienced substantial growth at higher redshift (z > 3), and grow slowly through secular fueling processes hosting moderate-luminosity AGNs.",

keywords = "black hole physics, galaxies: active, galaxies: nuclei, quasars: general",

author = "Hyewon Suh and Francesca Civano and G{\"u}nther Hasinger and Elisabeta Lusso and Giorgio Lanzuisi and Stefano Marchesi and Benny Trakhtenbrot and Viola Allevato and Nico Cappelluti and Capak, \{Peter L.\} and Martin Elvis and Griffiths, \{Richard E.\} and Clotilde Laigle and Paulina Lira and Laurie Riguccini and Rosario, \{David J.\} and Mara Salvato and Kevin Schawinski and Cristian Vignali",

year = "2017",

month = jun,

day = "1",

doi = "10.3847/1538-4357/aa725c",

language = "English",

volume = "841",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2",

}

Suh, H, Civano, F, Hasinger, G, Lusso, E, Lanzuisi, G, Marchesi, S, Trakhtenbrot, B, Allevato, V, Cappelluti, N, Capak, PL, Elvis, M, Griffiths, RE, Laigle, C, Lira, P, Riguccini, L, Rosario, DJ, Salvato, M, Schawinski, K & Vignali, C 2017, 'Type 2 AGN Host Galaxies in the Chandra-COSMOS Legacy Survey: No Evidence of AGN-driven Quenching', Astrophysical Journal, vol. 841, no. 2, 102. https://doi.org/10.3847/1538-4357/aa725c

TY - JOUR

T1 - Type 2 AGN Host Galaxies in the Chandra-COSMOS Legacy Survey

T2 - No Evidence of AGN-driven Quenching

AU - Suh, Hyewon

AU - Civano, Francesca

AU - Hasinger, Günther

AU - Lusso, Elisabeta

AU - Lanzuisi, Giorgio

AU - Marchesi, Stefano

AU - Trakhtenbrot, Benny

AU - Allevato, Viola

AU - Cappelluti, Nico

AU - Capak, Peter L.

AU - Elvis, Martin

AU - Griffiths, Richard E.

AU - Laigle, Clotilde

AU - Lira, Paulina

AU - Riguccini, Laurie

AU - Rosario, David J.

AU - Salvato, Mara

AU - Schawinski, Kevin

AU - Vignali, Cristian

PY - 2017/6/1

Y1 - 2017/6/1

N2 - We investigate the star formation properties of a large sample of ∼2300 X-ray-selected Type 2 Active Galactic Nuclei (AGNs) host galaxies out to z ∼ 3 in the Chandra COSMOS Legacy Survey in order to understand the connection between the star formation and nuclear activity. Making use of the existing multi-wavelength photometric data available in the COSMOS field, we perform a multi-component modeling from far-infrared to near-ultraviolet using a nuclear dust torus model, a stellar population model and a starburst model of the spectral energy distributions (SEDs). Through detailed analyses of SEDs, we derive the stellar masses and the star formation rates (SFRs) of Type 2 AGN host galaxies. The stellar mass of our sample is in the range of 9 < log 1 M M stellar 2 with uncertainties of ∼0.19 dex. We find that Type 2 AGN host galaxies have, on average, similar SFRs compared to the normal star-forming galaxies with similar Mstellar and redshift ranges, suggesting no significant evidence for enhancement or quenching of star formation. This could be interpreted in a scenario, where the relative massive galaxies have already experienced substantial growth at higher redshift (z > 3), and grow slowly through secular fueling processes hosting moderate-luminosity AGNs.

AB - We investigate the star formation properties of a large sample of ∼2300 X-ray-selected Type 2 Active Galactic Nuclei (AGNs) host galaxies out to z ∼ 3 in the Chandra COSMOS Legacy Survey in order to understand the connection between the star formation and nuclear activity. Making use of the existing multi-wavelength photometric data available in the COSMOS field, we perform a multi-component modeling from far-infrared to near-ultraviolet using a nuclear dust torus model, a stellar population model and a starburst model of the spectral energy distributions (SEDs). Through detailed analyses of SEDs, we derive the stellar masses and the star formation rates (SFRs) of Type 2 AGN host galaxies. The stellar mass of our sample is in the range of 9 < log 1 M M stellar 2 with uncertainties of ∼0.19 dex. We find that Type 2 AGN host galaxies have, on average, similar SFRs compared to the normal star-forming galaxies with similar Mstellar and redshift ranges, suggesting no significant evidence for enhancement or quenching of star formation. This could be interpreted in a scenario, where the relative massive galaxies have already experienced substantial growth at higher redshift (z > 3), and grow slowly through secular fueling processes hosting moderate-luminosity AGNs.

KW - black hole physics

KW - galaxies: active

KW - galaxies: nuclei

KW - quasars: general

UR - https://www.scopus.com/pages/publications/85020877622

U2 - 10.3847/1538-4357/aa725c

DO - 10.3847/1538-4357/aa725c

M3 - Article

SN - 0004-637X

VL - 841

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 102

ER -

Type 2 AGN Host Galaxies in the Chandra-COSMOS Legacy Survey: No Evidence of AGN-driven Quenching

Abstract

Keywords

ASJC Scopus subject areas

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