Robert Antonucci
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View article: The JWST View of Cygnus A: Jet-driven Coronal Outflow with a Twist
The JWST View of Cygnus A: Jet-driven Coronal Outflow with a Twist Open
We present first results from James Webb Space Telescope Near-Infrared Spectrograph, Mid-Infrared Instrument, and Keck Cosmic Webb Imager integral field spectroscopy of the powerful but highly obscured host galaxy of the jetted radio sourc…
View article: The JWST View of Cygnus A: Jet-Driven Coronal Outflow with a Twist
The JWST View of Cygnus A: Jet-Driven Coronal Outflow with a Twist Open
We present first results from James Webb Space Telescope (JWST) Near-Infrared Spectrograph (NIRSpec), Mid-Infrared Instrument (MIRI), and Keck Cosmic Webb Imager (KCWI) integral field spectroscopy of the powerful but highly obscured host-g…
View article: Cygnus A obscuring torus: ionized, atomic, or molecular?
Cygnus A obscuring torus: ionized, atomic, or molecular? Open
The prototypical powerful FR II radio galaxy Cygnus A fits extremely well into the quasar/radio galaxy unified model: high polarization with an angle almost perpendicular to the radio jet and polarized flux showing broad permitted lines. I…
View article: Cygnus A Obscuring Torus: Ionized, Atomic or Molecular?
Cygnus A Obscuring Torus: Ionized, Atomic or Molecular? Open
The prototypical powerful FR \Romannum{2} radio galaxy Cygnus A fits extremely well into the quasar/radio galaxy unified model: high polarization with an angle almost perpendicular to the radio jet and polarized flux showing broad permitte…
View article: A Walk through AGN Country—For the Somewhat Initiated!
A Walk through AGN Country—For the Somewhat Initiated! Open
Key issues in AGN and galaxy formation are discussed. Very successful Unified Models explain much of the variety of AGN with orientation effects; the ingredients are shadowing by a dusty “torus” and relativistic beaming. A spinoff result i…
View article: A Walk-Through of AGN Country -- for the somewhat initiated!
A Walk-Through of AGN Country -- for the somewhat initiated! Open
Some key issues in AGN and galaxy formation are discussed. Very successful Unified Models explain much of the variety of AGN with orientation effects; ingredients are shadowing by a dusty "torus" and relativistic beaming. A spinoff result …
View article: A Walk Through Agn Country—For the Somewhat Initiated!
A Walk Through Agn Country—For the Somewhat Initiated! Open
Some key issues in AGN and galaxy formation are discussed. Very successful Unified Models explain much of the variety of AGN with orientation effects; ingredients are shadowing by a dusty “torus" and relativistic beaming. A spinoff r…
View article: On the Origin of Radio-loudness in Active Galactic Nuclei Using Far-infrared Polarimetric Observations
On the Origin of Radio-loudness in Active Galactic Nuclei Using Far-infrared Polarimetric Observations Open
The dichotomy between radio-loud (RL) and radio-quiet (RQ) active galactic nuclei (AGNs) is thought to be intrinsically related to radio jet production. This difference may be explained by the presence of a strong magnetic field ( B -field…
View article: The Dust Sublimation Region of the Type 1 AGN NGC 4151 at a Hundred Microarcsecond Scale as Resolved by the CHARA Array Interferometer
The Dust Sublimation Region of the Type 1 AGN NGC 4151 at a Hundred Microarcsecond Scale as Resolved by the CHARA Array Interferometer Open
The nuclear region of Type 1 active galactic nuclei (AGNs) has only been partially resolved so far in the near-infrared (IR), where we expect to see the dust sublimation region and the nucleus directly without obscuration. Here, we present…
View article: NGC 3147: a prototypical low-luminosity active galactic nucleus with double-peaked optical and ultraviolet lines
NGC 3147: a prototypical low-luminosity active galactic nucleus with double-peaked optical and ultraviolet lines Open
A previous narrow-slit (0.1 arcsec) Hubble Space Telescope observation unveiled a broad relativistic Hα profile in NGC 3147, a low-luminosity (Lbol ∼ 1042 erg s−1), low-Eddington ratio (Lbol/LEdd ∼ 10−4) active galactic nucleus (AGN), form…
View article: On the origin of radio-loudness in active galactic nuclei using far-infrared polarimetric observations
On the origin of radio-loudness in active galactic nuclei using far-infrared polarimetric observations Open
The dichotomy between radio-loud (RL) and radio-quiet (RQ) active galactic nuclei (AGN) is thought to be intrinsically related to radio jet production. This difference may be explained by the presence of a strong magnetic field (B-field) t…
View article: Unravelling the origin of extended radio emission in narrow-line Seyfert 1 galaxies with the JVLA
Unravelling the origin of extended radio emission in narrow-line Seyfert 1 galaxies with the JVLA Open
Narrow-line Seyfert 1 galaxies (NLS1s) are believed to be active galactic nuclei (AGN) in the early stages of their evolution. Several dozen of them have been found to host relativistic jets, whilst the majority of NLS1s have not even been…
View article: Unravelling the origin of extended radio emission in narrow-line Seyfert 1 galaxies with the JVLA
Unravelling the origin of extended radio emission in narrow-line Seyfert 1 galaxies with the JVLA Open
Narrow-line Seyfert 1 galaxies (NLS1s) are believed to be active galactic nuclei (AGN) in the early stages of their evolution. Several dozen of them have been found to host relativistic jets, whilst the majority of NLS1s have not even been…
View article: Beyond Simple AGN Unification with Chandra-observed 3CRR Sources at 0.5 < z < 1
Beyond Simple AGN Unification with Chandra-observed 3CRR Sources at 0.5 < z < 1 Open
Low-frequency radio selection finds radio-bright galaxies regardless of the amount of obscuration by gas and dust. We report Chandra observations of a complete 178 MHz–selected, and so orientation-unbiased, sample of 44 0.5 < z < 1 3CRR so…
View article: <i>HST</i> unveils a compact mildly relativistic broad-line region in the candidate true type 2 NGC 3147
<i>HST</i> unveils a compact mildly relativistic broad-line region in the candidate true type 2 NGC 3147 Open
NGC 3147 has been considered the best case of a true type 2 AGN: an unobscured AGN, based on the unabsorbed compact X-ray continuum, which lacks a broad-line region (BLR). However, the very low luminosity of NGC 3147 implies a compact BLR,…
View article: Exploring Active Supermassive Black Holes at 100 Micro-arcsecond Resolution
Exploring Active Supermassive Black Holes at 100 Micro-arcsecond Resolution Open
Super-high spatial resolution observations in the infrared are now enabling major advances in our understanding of supermassive black hole systems at the centers of galaxies. Infrared interferometry, reaching resolutions of milliarcseconds…
View article: Exploring Active Supermassive Black Holes at 100 Micro-arcsecond\n Resolution
Exploring Active Supermassive Black Holes at 100 Micro-arcsecond\n Resolution Open
Super-high spatial resolution observations in the infrared are now enabling\nmajor advances in our understanding of supermassive black hole systems at the\ncenters of galaxies. Infrared interferometry, reaching resolutions of\nmilliarcseco…
View article: The Interacting Late-type Host Galaxy of the Radio-loud Narrow-line Seyfert 1 IRAS 20181-2244
The Interacting Late-type Host Galaxy of the Radio-loud Narrow-line Seyfert 1 IRAS 20181-2244 Open
Narrow-line Seyfert 1 galaxies (NLS1s) are a class of active galactic nuclei that are known to be one of the few sources of γ -rays, which originate in a relativistic beamed jet. Because of their relatively large distance, a poorly investi…
View article: Fe II velocity shifts in optical spectra of type 1 AGN
Fe II velocity shifts in optical spectra of type 1 AGN Open
| openaire: EC/H2020/730562/EU//RadioNet
View article: The Highly Polarized Dusty Emission Core of Cygnus A
The Highly Polarized Dusty Emission Core of Cygnus A Open
We report the detection of linearly polarized emission at 53 and 89 μ m from the radio-loud active galactic nucleus (AGN) Cygnus A using High-resolution Airborne Wideband Camera-plus (HAWC+) on board the Stratospheric Observatory For Infra…
View article: Radio-emitting narrow-line Seyfert 1 galaxies in the JVLA perspective
Radio-emitting narrow-line Seyfert 1 galaxies in the JVLA perspective Open
We report the first results of a survey on 74 narrow-line Seyfert 1 galaxies (NLS1s) carried out in 2015 with the Karl G. Jansky Very Large Array (JVLA) at 5 GHz in A-configuration. So far, this is the largest survey aimed to image the rad…
View article: Kiloparsec-scale emission in the narrow-line Seyfert 1 galaxy Mrk 783
Kiloparsec-scale emission in the narrow-line Seyfert 1 galaxy Mrk 783 Open
\n We present the first results of a radio survey of 79 narrow-line Seyfert 1 (NLS1) carried out with the Karl G. Jansky Very Large Array (JVLA) at 5 GHz in A configuration aimed at studying the radio properties of these sources. We report…