Ongoing and co-evolving star formation in zCOSMOS galaxies hosting Active Galactic Nuclei
J. D. Silverman
(1, 2, 3)
,
F. Lamareille
(4, 5, 6)
,
C. Maier
(1)
,
S. Lilly
(1)
,
V. Mainieri
(1)
,
M. Brusa
(1)
,
N. Cappelluti
,
G. Hasinger
(1)
,
G. Zamorani
(1, 7, 8)
,
M. Scodeggio
(1, 8, 9)
,
M. Bolzonella
(1, 4, 10)
,
T. Contini
(5, 11)
,
C. M. Carollo
(12)
,
K. Jahnke
(13)
,
J. -P. Kneib
(5, 14, 15)
,
O. Le Fevre
(14)
,
A. Merloni
(16)
,
S. Bardelli
(1, 4, 8)
,
A. Bongiorno
(1, 4, 10)
,
H. Brunner
,
K. Caputi
(1)
,
F. Civano
,
A. Comastri
,
G. Coppa
(1)
,
O. Cucciati
(1, 7, 17)
,
S. de La Torre
(1)
,
L. de Ravel
(1)
,
M. Elvis
,
A. Finoguenov
(13)
,
F. Fiore
,
P. Franzetti
(1, 8, 9)
,
B. Garilli
(1, 8, 9)
,
R. Gilli
,
A. Iovino
(1, 4, 8)
,
P. Kampczyk
(1)
,
C. Knobel
(1)
,
K. Kovac
(1)
,
J. -F. Le Borgne
(11, 15)
,
V. Le Brun
(14)
,
M. Mignoli
(1)
,
R. Pello
(5, 11, 15)
,
Y. Peng
(18)
,
E. Perez Montero
(19)
,
E. Ricciardelli
(1)
,
M. Tanaka
(20, 21, 22)
,
L. Tasca
(14)
,
L. Tresse
(14)
,
D. Vergani
(1, 9, 23)
,
C. Vignali
(10)
,
E. Zucca
(1, 7, 8)
,
D. Bottini
(1, 8, 9)
,
A. Cappi
(1, 8, 24)
,
P. Cassata
(1)
,
M. Fumana
(1)
,
R. Griffiths
(25)
,
J. Kartaltepe
(1)
,
Christian Marinoni
(26, 27)
,
H. J. Mccracken
(28)
,
P. Memeo
(1)
,
B. Meneux
(14)
,
P. Oesch
(1)
,
C. Porciani
(1)
,
M. Salvato
(13)
1
AUTRES
2 Human Genetics Center
3 Department of Psychiatry [Pittsburgh]
4 OABO - INAF - Osservatorio Astronomico di Bologna
5 LATT - Laboratoire Astrophysique de Toulouse-Tarbes
6 OP - Observatoire de Paris - Site de Paris
7 OAB - INAF - Osservatorio Astronomico di Brera
8 OAC - INAF - Osservatorio Astronomico di Capodimonte
9 INAF- Milano
10 UNIBO - Alma Mater Studiorum Università di Bologna = University of Bologna
11 LATT - Laboratoire d'Astrophysique de l'Observatoire Midi-Pyrénées
12 University of Chicago
13 MPIA - Max-Planck-Institut für Astronomie
14 LAM - Laboratoire d'Astrophysique de Marseille
15 UMS 831 - Services communs OMP
16 MPA - Max-Planck-Institut für Astrophysik
17 Dipartimento di Fisica
18 Institute of Astronomy [ETH Zürich]
19 Glycosciences Laboratory
20 Information Science Laboratory
21 Tokai University
22 Japan Atomic Energy Agency
23 OAA - INAF - Osservatorio Astrofisico di Arcetri
24 IASF-Bo - Istituto di Astrofisica Spaziale e Fisica cosmica - Bologna
25 Department of Statistics [Oxford]
26 CPT - Centre de Physique Théorique - UMR 6207
27 CPT - Centre de Physique Théorique - UMR 7332
28 IAP - Institut d'Astrophysique de Paris
2 Human Genetics Center
3 Department of Psychiatry [Pittsburgh]
4 OABO - INAF - Osservatorio Astronomico di Bologna
5 LATT - Laboratoire Astrophysique de Toulouse-Tarbes
6 OP - Observatoire de Paris - Site de Paris
7 OAB - INAF - Osservatorio Astronomico di Brera
8 OAC - INAF - Osservatorio Astronomico di Capodimonte
9 INAF- Milano
10 UNIBO - Alma Mater Studiorum Università di Bologna = University of Bologna
11 LATT - Laboratoire d'Astrophysique de l'Observatoire Midi-Pyrénées
12 University of Chicago
13 MPIA - Max-Planck-Institut für Astronomie
14 LAM - Laboratoire d'Astrophysique de Marseille
15 UMS 831 - Services communs OMP
16 MPA - Max-Planck-Institut für Astrophysik
17 Dipartimento di Fisica
18 Institute of Astronomy [ETH Zürich]
19 Glycosciences Laboratory
20 Information Science Laboratory
21 Tokai University
22 Japan Atomic Energy Agency
23 OAA - INAF - Osservatorio Astrofisico di Arcetri
24 IASF-Bo - Istituto di Astrofisica Spaziale e Fisica cosmica - Bologna
25 Department of Statistics [Oxford]
26 CPT - Centre de Physique Théorique - UMR 6207
27 CPT - Centre de Physique Théorique - UMR 7332
28 IAP - Institut d'Astrophysique de Paris
J. D. Silverman
- Fonction : Auteur
N. Cappelluti
- Fonction : Auteur
G. Zamorani
- Fonction : Auteur
- PersonId : 755662
- ORCID : 0000-0002-2318-301X
- IdRef : 190956429
T. Contini
- Fonction : Auteur
- PersonId : 178293
- IdHAL : thierry-contini
- ORCID : 0000-0003-0275-938X
- IdRef : 112340571
K. Jahnke
- Fonction : Auteur
- PersonId : 755700
- ORCID : 0000-0003-3804-2137
O. Le Fevre
- Fonction : Auteur
- PersonId : 17465
- IdHAL : olivier-le-fevre
- ORCID : 0000-0001-5891-2596
- IdRef : 070374678
S. Bardelli
- Fonction : Auteur
- PersonId : 755650
- ORCID : 0000-0002-8900-0298
H. Brunner
- Fonction : Auteur
F. Civano
- Fonction : Auteur
A. Comastri
- Fonction : Auteur
O. Cucciati
- Fonction : Auteur
- PersonId : 755968
- ORCID : 0000-0002-9336-7551
S. de La Torre
- Fonction : Auteur
- PersonId : 21320
- IdHAL : sylvain-de-la-torre
- IdRef : 133617238
M. Elvis
- Fonction : Auteur
A. Finoguenov
- Fonction : Auteur
- PersonId : 756645
- ORCID : 0000-0002-4606-5403
F. Fiore
- Fonction : Auteur
B. Garilli
- Fonction : Auteur
- PersonId : 755663
- ORCID : 0000-0001-7455-8750
- IdRef : 170321126
R. Gilli
- Fonction : Auteur
M. Tanaka
- Fonction : Auteur
L. Tresse
- Fonction : Auteur
- PersonId : 743336
- IdHAL : laurence-tresse
- ORCID : 0000-0001-8776-0958
- IdRef : 088004031
C. Vignali
- Fonction : Auteur
- PersonId : 759209
- ORCID : 0000-0002-8853-9611
E. Zucca
- Fonction : Auteur
- PersonId : 755651
- ORCID : 0000-0002-5845-8132
Christian Marinoni
- Fonction : Auteur
- PersonId : 7013
- IdHAL : christian-marinoni
- IdRef : 157113582
Résumé
We present a study of the host galaxies of AGN selected from the zCOSMOS survey to establish if accretion onto supermassive black holes and star formation are explicitly linked up to z~1. We identify 152 galaxies that harbor AGN, based on XMM observations of 7543 galaxies (i<22.5). Star formation rates (SFRs), including those weighted by stellar mass, are determined using the [OII]3727 emission-line, corrected for an AGN contribution. We find that the majority of AGN hosts have significant levels of star formation with a distribution spanning ~1-100 Msun yr^-1. The close association between AGN activity and star formation is further substantiated by an increase in the AGN fraction with the youthfulness of their stars as indicated by the rest-frame color (U-V) and spectral index Dn(4000); we demonstrate that mass-selection alleviates an artifical peak falling in the transition region when using luminosity-limited samples. We also find that the SFRs of AGN hosts evolve with cosmic time in a manner that closely mirrors the overall galaxy population and explains the low SFRs in AGNs (z<0.3) from the SDSS. We conclude that the conditions most conducive for AGN activity are a massive host galaxy and a large reservoir of gas. Furthermore, a direct correlation between mass accretion rate onto SMBHs and SFR is shown to be weak although the average ratio is constant with redshift, effectively shifting the evidence for a co-evolution scenario in a statistical manner to smaller physical scales. Our findings illustrate an intermittent scenario with an AGN lifetime substantially shorter than that of star formation and underlying complexities regarding fueling over vastly different physical scales yet to be determined [Abridged].