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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

VLT/SINFONI study of black hole growth in high-redshift radio-loud quasars from the CARLA survey

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Marinello, M. [1, 2, 3] ; Overzier, R. A. [4, 3] ; Rottgering, H. J. A. [1] ; Kurk, J. D. [5] ; De Breuck, C. [6] ; Vernet, J. [6] ; Wylezalek, D. [6] ; Stern, D. [7] ; Duncan, K. J. [1] ; Hatch, N. [8] ; Kashikawa, N. [9] ; Lin, Y-T [10] ; Nemmen, R. S. [4] ; Saxena, A. [1, 11]
Total Authors: 14
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[1] Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden - Netherlands
[2] Lab Nacl Astrofis, Rua Estados Unidos 154, BR-37504364 Itajuba, MG - Brazil
[3] Observ Nacl MCTIC, Rua Gen Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ - Brazil
[4] Univ Sao Paulo, Inst Astron Geophys & Atmospher Sci, BR-05508090 Sao Paulo, SP - Brazil
[5] Max Planck Inst Extraterr Phys, Giessenbachstr, D-85741 Garching - Germany
[6] European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching - Germany
[7] CALTECH, Jet Prop Lab, Mail Stop 169-221, Pasadena, CA 91109 - USA
[8] Univ Nottingham, Sch Phys & Astron, Univ Pk, Nottingham NG7 2RD - England
[9] Univ Tokyo, Sch Sci, Dept Astron, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033 - Japan
[10] Acad Sinica, Inst Astron & Astrophys, Taipei 10617 - Taiwan
[11] INAF, Osservatorio Astron Roma, Via Frascati 33, I-00040 Monte Porzio Catone, RM - Italy
Total Affiliations: 11
Document type: Journal article
Source: Monthly Notices of the Royal Astronomical Society; v. 492, n. 2, p. 1991-2016, FEB 2020.
Web of Science Citations: 0

We present Very Large Telescope/Spectrograph for INtegral Field Observations in the Near Infrared (VLT/SINFONI) observations of 35 quasars at 2.1 < z < 3.2, the majority of which were selected from the Clusters Around Radio-Loud AGN (CARLA) survey. CARLA quasars have large C-IV-based black hole masses (M-BH > 10(9) M-circle dot) and powerful radio emission (P-500MHz > 27.5 W Hz(-1)). We estimate H alpha-based M-BH, finding a scatter of 0.35 dex compared to C-IV. We evaluate several recipes for correcting CIV-based masses, which reduce the scatter to 0.24 dex. The radio power of the radio-loud quasars is at most weakly correlated with the interconnected quantities H alpha width, L-5100, and M-BH, suggesting that it is governed by different physical processes. However, we do find a strong inverse correlation between C IV blueshift and radio power linked to higher Eddington ratios and L-5100. Under standard assumptions, the black hole (BH) growth time is longer than the cosmic age for many CARLA quasars, suggesting that they must have experienced more efficient growth in the past. If these BHs were growing from seeds since the epoch of reionization, it is possible that they grew at the Eddington limit like the quasars at z similar to 6-7, and then continued to grow at the reduced rates observed until z similar to 2-3. Finally, we study the relation between M-BH and environment, finding a weak positive correlation between MBH and galaxydensity measured by CARLA. (AU)

FAPESP's process: 17/01461-2 - The extreme universe: black holes and the Fermi telescope
Grantee:Rodrigo Nemmen da Silva
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 18/02444-7 - The dawn of galaxy formation
Grantee:João Evangelista Steiner
Support type: Research Grants - Visiting Researcher Grant - Brazil