Browsing by Author "d12bb989-36b8-4b07-baf5-6f0b049895b2"

Now showing items 1-6 of 6

    • A new, faint population of X-ray transients 
      Bauer, Franz E.; Treister, Ezequiel; Schawinski, Kevin; Schulze, Steve; Luo, Bin; Alexander, David M.; Brandt, William N.; Comastri, Andrea; Forster, Francisco; Gilli, Roberto; Kann, David Alexander; Maeda, Keiichi; Nomoto, Ken'ichi; Paolillo, Maurizio; Ranalli, Piero; Schneider, Donald P.; Shemmer, Ohad; Tanaka, Masaomi; Tolstov, Alexey; Tominaga, Nozomu; Tozzi, Paolo; Vignali, Cristian; Wang, Junxian; Xue, Yongquan; Yang, Guang (Oxford University Press, 2017)
      © 2017 The Authors. We report on the detection of a remarkable new fast high-energy transient found in the Chandra Deep Field-South, robustly associated with a faint (mR = 27.5mag, zph ~2.2) host in the CANDELS survey. The ...
    • 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 ...
    • Exploratory X-Ray monitoring of luminous radio quiet quasars at high redshift: no evidence for evolution ... 
      Shemmer, Ohad; Brandt, W. N.; Paolillo, Maurizio; Kaspi, Shai; Vignali, Cristian; Lira Teillery, Paulina; Schneider, Donald P. (IOP Publishing Ltd, 2017)
      We report on the second installment of an X-ray monitoring project of seven luminous radio-quiet quasars (RQQs). New Chandra observations of four of these, at 4.10 <= z <= 4.35, yield a total of six X-ray epochs per source, ...
    • 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 ...