Search Results - "Bontà, Elena Dalla"
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The Sloan Digital Sky Survey Reverberation Mapping Project: Estimating Masses of Black Holes in Quasars with Single-epoch Spectroscopy
Published in The Astrophysical journal (01-11-2020)“…Abstract It is well known that reverberation mapping of active galactic nuclei (AGNs) reveals a relationship between AGN luminosity and the size of the…”
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Black hole masses from emission‐line widths
Published in Astronomische Nachrichten (01-01-2022)“…Reverberation mapping and scaling relationships based on reverberation results provide the underpinning of all estimates of quasar black hole masses. When…”
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A New Sample of Gamma-Ray Emitting Jetted Active Galactic Nuclei—Preliminary Results
Published in Universe (Basel) (01-10-2021)“…We are compiling a new list of gamma-ray jetted active galactic nuclei (AGN), starting from the fourth catalog of point sources of the Fermi Large Area…”
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A New Sample of Gamma-Ray Emitting Jetted Active Galactic Nuclei
Published in Universe (Basel) (01-11-2022)“…We considered the fourth catalog of gamma-ray point sources produced by the Fermi Large Area Telescope (LAT) and selected only jetted active galactic nuclei…”
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The Power of Relativistic Jets: A Comparative Study
Published in Universe (Basel) (01-04-2024)“…We present the results of a comparison between different methods to estimate the power of relativistic jets from active galactic nuclei (AGN). We selected a…”
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Supermassive Black Holes and Their Host Galaxies
Published in Publications of the Astronomical Society of the Pacific (01-05-2008)Get full text
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AGN STORM 2. III. A NICER View of the Variable X-Ray Obscurer in Mrk 817
Published in The Astrophysical journal (01-04-2023)“…Abstract The AGN STORM 2 Collaboration targeted the Seyfert 1 galaxy Mrk 817 for a year-long multiwavelength, coordinated reverberation mapping campaign…”
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The kinematics of σ-drop bulges from spectral synthesis modelling of a hydrodynamical simulation
Published in Monthly notices of the Royal Astronomical Society (01-05-2017)“…Abstract A minimum in stellar velocity dispersion is often observed in the central regions of disc galaxies. To investigate the origin of this feature, known…”
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AGN STORM 2. IV. Swift X-Ray and Ultraviolet/Optical Monitoring of Mrk 817
Published in The Astrophysical journal (01-12-2023)“…Abstract The AGN STORM 2 campaign is a large, multiwavelength reverberation mapping project designed to trace out the structure of Mrk 817 from the inner…”
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The spectroscopy and H-band imaging of Virgo cluster galaxies (SHIVir) survey: data catalogue and kinematic profiles
Published in Monthly notices of the Royal Astronomical Society (20-06-2022)“…ABSTRACT The ‘Spectroscopy and H-band Imaging of Virgo cluster galaxies’ (SHIVir) survey is an optical and near-infrared survey which combines SDSS photometry,…”
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A Fundamental Relation between Compact Stellar Nuclei, Supermassive Black Holes, and Their Host Galaxies
Published in The Astrophysical journal (10-06-2006)“…Imaging surveys with the Hubble Space Telescope (HST) have shown that -50%-80% of low- and intermediate-luminosity galaxies contain a compact stellar nucleus…”
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AGN STORM 2. IX. Studying the Dynamics of the Ionized Obscurer in Mrk 817 with High-resolution X-Ray Spectroscopy
Published in The Astrophysical journal (01-10-2024)“…Abstract We present the results of the XMM-Newton and NuSTAR observations taken as part of the ongoing, intensive multiwavelength monitoring program of the…”
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AGN STORM 2. VIII. Investigating the Narrow Absorption Lines in Mrk 817 Using HST-COS Observations
Published in The Astrophysical journal (01-09-2024)“…Abstract We observed the Seyfert 1 galaxy Mrk 817 during an intensive multiwavelength reverberation mapping campaign for 16 months. Here, we examine the…”
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AGN STORM 2. II. Ultraviolet Observations of Mrk 817 with the Cosmic Origins Spectrograph on the Hubble Space Telescope
Published in The Astrophysical journal (01-05-2023)“…Abstract We present reverberation mapping measurements for the prominent ultraviolet broad emission lines of the active galactic nucleus Mrk 817 using 165…”
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AGN STORM 2. VI. Mapping Temperature Fluctuations in the Accretion Disk of Mrk 817
Published in The Astrophysical journal (01-02-2024)“…Abstract We fit the UV/optical lightcurves of the Seyfert 1 galaxy Mrk 817 to produce maps of the accretion disk temperature fluctuations δ T resolved in time…”
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The Sloan Digital Sky Survey Reverberation Mapping Project: The M BH–Host Relations at 0.2 ≲ z ≲ 0.6 from Reverberation Mapping and Hubble Space Telescope Imaging
Published in The Astrophysical journal (01-01-2021)“…Abstract We present the results of a pilot Hubble Space Telescope (HST) imaging study of the host galaxies of ten quasars from the Sloan Digital Sky Survey…”
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AGN STORM 2. V. Anomalous Behavior of the C iv Light Curve of Mrk 817
Published in The Astrophysical journal (01-03-2024)“…Abstract An intensive reverberation mapping campaign of the Seyfert 1 galaxy Mrk 817 using the Cosmic Origins Spectrograph on the Hubble Space Telescope…”
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AGN STORM 2. VII. A Frequency-resolved Map of the Accretion Disk in Mrk 817: Simultaneous X-Ray Reverberation and UVOIR Disk Reprocessing Time Lags
Published in The Astrophysical journal (01-10-2024)“…Abstract X-ray reverberation mapping is a powerful technique for probing the innermost accretion disk, whereas continuum reverberation mapping in the UV,…”
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A New Sample of Gamma-Ray Emitting Jetted Active Galactic Nuclei
Published 07-11-2022“…Universe 2022, 8(11), 587 We considered the fourth catalog of gamma-ray point sources produced by the Fermi Large Area Telescope (LAT) and selected only jetted…”
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