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SUPER - III. Broad ...
SUPER - III. Broad line region properties of AGNs at z ∼ 2
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- Vietri, G. (author)
- Istituto nazionale di astrofisica (INAF),Ludwig-Maximilians-Universität München,Ludwig Maximilian University of Munich,European Southern Observatory Santiago
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- Mainieri, V (author)
- European Southern Observatory Santiago
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- Kakkad, D. (author)
- European Southern Observatory Santiago
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- Netzer, H. (author)
- Tel Aviv University
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- Perna, M. (author)
- Agencia Estatal Consejo Superior de Investigaciones Científicas,Spanish National Research Council,Istituto nazionale di astrofisica (INAF)
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- Circosta, C. (author)
- European Southern Observatory Santiago,University College London (UCL)
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- Harrison, C. M. (author)
- University of Newcastle upon Tyne
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- Zappacosta, L. (author)
- Istituto nazionale di astrofisica (INAF)
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- Husemann, B. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Padovani, P. (author)
- European Southern Observatory Santiago
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- Bischetti, M. (author)
- Istituto nazionale di astrofisica (INAF)
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- Bongiorno, A. (author)
- Istituto nazionale di astrofisica (INAF)
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- Brusa, M. (author)
- Universita di Bologna,University of Bologna,Istituto nazionale di astrofisica (INAF)
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- Carniani, S. (author)
- Scuola Normale Superiore di Pisa
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- Cicone, C. (author)
- Universitetet i Oslo,University of Oslo
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- Comastri, A. (author)
- Istituto nazionale di astrofisica (INAF)
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- Cresci, G. (author)
- Istituto nazionale di astrofisica (INAF)
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- Feruglio, C. (author)
- Istituto nazionale di astrofisica (INAF)
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- Fiore, F. (author)
- Istituto nazionale di astrofisica (INAF)
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- Lanzuisi, G. (author)
- Istituto nazionale di astrofisica (INAF)
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- Mannucci, F. (author)
- Istituto nazionale di astrofisica (INAF)
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- Marconi, A. (author)
- Istituto nazionale di astrofisica (INAF),Universita degli Studi di Firenze,University of Florence
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- Piconcelli, E. (author)
- Istituto nazionale di astrofisica (INAF)
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- Puglisi, A. (author)
- Istituto nazionale di astrofisica (INAF),Université Paris-Saclay,University Paris-Saclay,Durham University
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- Salvato, M. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Schramm, M. (author)
- Saitama University
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- Schulze, A. (author)
- National Astronomical Observatory of Japan
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- Scholtz, Jan, 1992 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Vignali, C. (author)
- Universita di Bologna,University of Bologna,Istituto nazionale di astrofisica (INAF)
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- Zamorani, G. (author)
- Istituto nazionale di astrofisica (INAF)
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(creator_code:org_t)
- 2020-12-18
- 2020
- English.
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In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 644
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https://www.aanda.or...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Aims. The SINFONI survey for Unveiling the Physics and Effect of Radiative feedback (SUPER) was designed to conduct a blind search for AGN-driven outflows on X-ray-selected AGNs at redshift z similar to 2 with high (similar to 2 kpc) spatial resolution, and to correlate them with the properties of their host galaxy and central black hole. The main aims of this paper are: (a) to derive reliable estimates for the masses of the black holes and accretion rates for the Type-1 AGNs in this survey; and (b) to characterise the properties of the AGN-driven winds in the broad line region (BLR).Methods. We analysed rest-frame optical and UV spectra of 21 Type-1 AGNs. We used H alpha, H beta, and MgII line profiles to estimate the masses of the black holes. We used the blueshift of the CIV line profile to trace the presence of winds in the BLR.Results. We find that the H alpha and H beta line widths are strongly correlated, as is the line continuum luminosity at 5100 angstrom with H alpha line luminosity, resulting in a well-defined correlation between black hole masses estimated from H alpha and H beta. Using these lines, we estimate that the black hole masses for our objects are in the range Log (M-BH/M-circle dot) = 8.4-10.8 and are accreting at lambda (Edd) = 0.04-1.3. Furthermore, we confirm the well-known finding that the CIV line width does not correlate with the Balmer lines and the peak of the line profile is blueshifted with respect to the [OIII]-based systemic redshift. These findings support the idea that the CIV line is tracing outflowing gas in the BLR for which we estimated velocities up to similar to 4700 km s(-1). We confirm the strong dependence of the BLR wind velocity on the UV-to-X-ray continuum slope, the bolometric luminosity, and Eddington ratio. We infer BLR mass outflow rates in the range 0.005-3 M-circle dot yr(-1), revealing a correlation with the bolometric luminosity consistent with that observed for ionised winds in the narrow line region (NLR), and X-ray winds detected in local AGNs, and kinetic power similar to 10(-7)-10(-4)xL(Bol). The coupling efficiencies predicted by AGN-feedback models are much higher than the values reported for the BLR winds in the SUPER sample; although it should be noted that only a fraction of the energy injected by the AGN into the surrounding medium is expected to become kinetic power in the outflow. Finally, we find an anti-correlation between the equivalent width of the [OIII] line and the CIV velocity shift, and a positive correlation between this latter parameter and [OIII] outflow velocity. These findings, for the first time in an unbiased sample of AGNs at z similar to 2, support a scenario where BLR winds are connected to galaxy-scale detected outflows, and are therefore capable of affecting the gas in the NLR located at kiloparsec scale distances.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Matematik -- Sannolikhetsteori och statistik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Probability Theory and Statistics (hsv//eng)
Keyword
- galaxies: high-redshift
- galaxies: active
- quasars: emission lines
- quasars: supermassive black holes
- galaxies: evolution
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Vietri, G.
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Mainieri, V
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Kakkad, D.
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Netzer, H.
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Perna, M.
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Circosta, C.
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show more...
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Harrison, C. M.
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Zappacosta, L.
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Husemann, B.
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Padovani, P.
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Bischetti, M.
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Bongiorno, A.
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Brusa, M.
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Carniani, S.
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Cicone, C.
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Comastri, A.
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Cresci, G.
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Feruglio, C.
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Fiore, F.
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Lanzuisi, G.
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Mannucci, F.
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Marconi, A.
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Piconcelli, E.
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Puglisi, A.
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Salvato, M.
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Schramm, M.
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Schulze, A.
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Scholtz, Jan, 19 ...
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Vignali, C.
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Zamorani, G.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Meteorology and ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Mathematics
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and Probability Theo ...
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Astronomy and As ...
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Chalmers University of Technology