Browsing by Author "4a2822af-a8ae-4ba4-8255-c38313080f6c"

Now showing items 1-9 of 9

    • Active galactic nuclei at z ∼ 1.5 – II. Black hole mass estimation by means of broad emission lines 
      Mejía Restrepo, Julián; Trakhtenbrot, Benny; Lira Teillery, Paulina; Netzer, H.; Capellupo, Daniel (Oxford University Press, 2016)
      This is the second in a series of papers aiming to test how the mass (M-BH), accretion rate (M) over dot and spin (a(*)) of supermassive black holes (SMBHs) determine the observed properties of type I active galactic nuclei ...
    • Active galactic nuclei at z ∼ 1.5 – III. Accretion discs and black hole spin 
      Capellupo, Daniel; Netzer, Hagai; Lira Teillery, Paulina; Trakhtenbrot, Benny; Mejía Restrepo, Julián (Oxford University Press, 2016)
      This is the third paper in a series describing the spectroscopic properties of a sample of 39 AGN at z similar to 1.5, selected to cover a large range in black hole mass (M-BH) and Eddington ratio (L/L-Edd). In this paper, ...
    • ALMA Observations of Quasar Host Galaxies at z similar or equal to 4.8 
      Nguyen, Nathen H.; Lira Teillery, Paulina; Trakhtenbrot, Benny; Netzer, Hagai; Cicone, Claudia; Maiolino, Roberto; Shemmer, Ohad (IOP Publishing, 2020)
      We present ALMA Band 7 data of the [C II] lambda 157.74 mu m emission line and underlying far-IR (FIR) continuum for 12 luminous quasars at z similar or equal to 4.8 powered by fast-growing supermassive black holes (SMBHs). ...
    • ALMA Observations Show Major Mergers among the Host Galaxies of Fast-growing, High-redshift, Supermassive ... 
      Trakhtenbrot, Benny; Lira Teillery, Paulina; Netzer, Hagai; Cicone, Claudia; Maiolino, Roberto; Shemmer, Ohad (IOP Publishing, 2017)
      We present new ALMA band-7 data for a sample of six luminous quasars at z similar or equal to 4.8, powered by fast-growing supermassive black holes (SMBHs) with rather uniform properties: the typical accretion rates and ...
    • Faint Cosmos AGNs AT z ∼ 3.3. I. Black Hole Properties and Constraints on Early Black Hole Growth 
      Trakhtenbrot, Benny; Civano, F.; Urry, C. Megan; Schawinski, Kevin; Marchesi, Simone; Elvis, M. S.; Rosario, D. J.; Suh, H.; Mejía-Restrepo, Julian; Simmons, B. D.; Faisst, Andreas; Onodera, M. (IOP, 2016)
      We present new Keck/MOSFIRE K-band spectroscopy for a sample of 14 faint, X-ray-selected active galactic nuclei (AGNs) in the COSMOS field. The data cover the spectral region surrounding the broad Balmer emission lines, ...
    • Fast-Growing SMBHs in Fast-Growing Galaxies, at high redshifts: the role of Major Mergers as revealed by ALMA 
      Trakhtenbrot, Benny; Lira Teillery, Paulina; Netzer, Hagai; Cicone, Claudia; Maiolino, Roberto; Shemmer, Ohad (Osservatorio Astronomico di Padova (INAF), Italy, 2017)
      We present a long-term, multi-wavelength project to understand the epoch of fastest growth of the most massive black holes by using a sample of 40 luminous quasars at z similar or equal to 4.8. These quasars have rather ...
    • Star formation black hole growth and dusty tori in the most luminous agns AT Z = 2–3.5 
      Netzer, Hagai; Lani, Caterina; Nordon, Raanan; Trakhtenbrot, Benny; Lira Teillery, Paulina; Shemmer, Ohad (The American Astronomical Society, 2016-03-10)
      We report Herschel/SPIRE observations of 100 very luminous, optically selected active galactic nuclei (AGNs) at $z=2\mbox{--}3.5$ with $\mathrm{log}$ ${L}_{{\rm{1350}}}$ (erg s−1) ≥ 46.5 , where ${L}_{{\rm{1350}}}$ is λLλ ...
    • The virial factor and biases in single epoch black hole mass determinations 
      Mejía Restrepo, Julián; Lira Teillery, Paulina; Netzer, Hagai; Trakhtenbrot, Benny; Capellupo, Daniel (Frontiers media SA, 2018)
      Accurately determining the masses of supermassive black holes is crucial to understand their evolution and the establishment of their relationship with their host galaxy properties. Beyond the local universe, the single ...
    • Type 2 AGN host galaxies in the Chandra-COSMOS Legacy Survey: No evidence of AGN-driven Quenching 
      Suh, Hyewon; Civano, Francesca; Hasinger, Guenther; Lusso, Elisabeta; Lanzuisi, Giorgio; Marchesi, Stefano; Trakhtenbrot, Benny; Allevato, Viola; Cappelluti, Nico; Capak, Peter L.; Elvis, Martin; Griffiths, Richard E.; Laigle, Clotilde; Lira Teillery, Paulina; Riguccini, Laurie; Rosario, David J.; Salvato, Mara; Schawinski, Kevin; Vignali, Cristian (IOP Publishing, 2017-06-01)
      We investigate the star formation properties of a large sample of similar to 2300 X-ray-selected Type 2 Active Galactic Nuclei (AGNs) host galaxies out to z similar to 3 in the Chandra COSMOS Legacy Survey in order to ...