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Related papers: RAiSE II: resolved spectral evolution in radio AGN

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The supermassive black holes in active galactic nuclei (AGN) and stellar-mass black holes in X-ray binaries (XRBs) are believed to work in a similar way. While XRBs evolve rapidly and several sources have undergone a few complete cycles…

Astrophysics of Galaxies · Physics 2017-07-26 Jiri Svoboda , Matteo Guainazzi , Andrea Merloni

Radio and gamma-ray emission from active galactic nuclei (AGN) are thought to share a common origin, related to the ejection phenomena in the vicinity of supermassive black holes. Thanks to its sensitivity, surveying capability, and broad…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-29 M. Giroletti , A. Reimer , L. Fuhrmann , V. Pavlidou , J. L. Richards

We model the X-ray surface brightness distribution of emission associated with Fanaroff & Riley type-II radio galaxies. Our approach builds on the RAiSE dynamical model which describes broadband radio-frequency synchrotron evolution of…

Astrophysics of Galaxies · Physics 2020-03-18 Ross J. Turner , Stanislav S. Shabala

GPS and CSS radio sources are the objects of choice to investigate the evolution of young radio-loud AGN. Previous investigations, mainly based on number counts and source size distributions, indicate that GPS/CSS sources decrease…

Astrophysics · Physics 2009-11-07 I. A. G. Snellen , K. -H. Mack , R. T. Schilizzi , W. Tschager

A thorough study of radio emission in Active Galactic Nuclei (AGN) is of fundamental importance to understand the physical mechanisms responsible for the emission and the interplay between accretion and ejection processes. High frequency…

Astrophysics of Galaxies · Physics 2020-05-27 E. Chiaraluce , F. Panessa , G. Bruni , R. D. Baldi , E. Behar , F. Vagnetti , F. Tombesi , I. McHardy

Radio galaxies are a subclass of active galactic nuclei in which accretion onto the supermassive black hole releases energy via relativistic jets. The jets are not constantly active throughout the life of the host galaxy and alternate…

Astrophysics of Galaxies · Physics 2023-08-30 S. Candini , M. Brienza , A. Bonafede , K. Rajpurohit , N. Biava , M. Murgia , F. Loi , R. J. van Weeren , F. Vazza

We select a sample of radio galaxies at high redshifts (z>~1) in the COSMOS field, by cross-matching optical/infrared images with the FIRST radio data. The aim of this study is to explore the high-z radio-loud (RL) AGN population at much…

Astrophysics of Galaxies · Physics 2014-09-05 Ranieri D. Baldi , Alessandro Capetti , Marco Chiaberge , Annalisa Celotti

Radio mode feedback, in which most of the energy of an active galactic nucleus (AGN) is released in a kinetic form via radio-emitting jets, is thought to play an important role in the maintenance of massive galaxies in the present-day…

Astrophysics of Galaxies · Physics 2015-06-22 W. Ishibashi , M. W. Auger , D. Zhang , A. C. Fabian

Based on the ATLBS survey we present a sample of extended radio sources and derive morphological properties of faint radio sources. 119 radio galaxies form the ATLBS-Extended Source Sample (ATLBS-ESS) consisting of all sources exceeding 30"…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 L. Saripalli , R. Subrahmanyan , K. Thorat , R. D. Ekers , R. W. Hunstead , H. M. Johnston , E. M. Sadler

We analyze the long-term evolution of the fluxes of six active galactic nuclei (AGN) - 0923+392, 3C 111, 3C 273, 3C 345, 3C 454.3, and 3C 84 - in the frequency range 80-267 GHz using archival calibration data of the IRAM Plateau de Bure…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 S. Trippe , M. Krips , V. Pietu , R. Neri , J. M. Winters , F. Gueth , M. Bremer , P. Salome , R. Moreno , J. Boissier , F. Fontani

We present optical SuperNova Integral Field Spectrograph (SNIFS) integral field spectroscopy, Hubble Space Telescope optical imaging, Chandra X-ray imaging, and Very Large Array radio interferometry of the merging galaxy 2MASX…

We explore radio and spectroscopic properties of a sample of 14 miniature radio galaxies, i.e. early-type core galaxies hosting radio-loud AGN of extremely low radio power, 10^(27-29) erg s^(-1) Hz^(-1) at 1.4 GHz. Miniature radio galaxies…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Ranieri D. Baldi , Alessandro Capetti

The faint radio-source population includes sources dominated both by star formation and active galactic nuclei (AGN), encoding the evolution of activity in the Universe. To investigate its nature, we probabilistically classified 4,471 radio…

We use the observational data in radio, optical and X-ray wavebands, for a sample of active galactic nuclei (AGNs) with measured black hole masses, to explore the origin of radio emission from nearby low-luminosity active galactic nuclei…

Astrophysics · Physics 2008-11-26 Qingwen Wu , Xinwu Cao

Most of the Universe's populations of low energy cosmic ray electrons in the energy range of 1-100 MeV still manage to elude from detection by our instruments, since their synchrotron emission is at too low frequencies. We investigate a…

Astrophysics · Physics 2009-11-06 Torsten A. Ensslin , Rashid A. Sunyaev

We produce radiation hydrodynamics models of an AGN 'torus' plus outflow on 1-100 pc scales. This large scale permits direct comparison with observations, provides justification for configurations used in radiation transfer models, and…

Astrophysics of Galaxies · Physics 2020-07-08 David Williamson , Sebastian Hönig , Marta Venanzi

We investigate the synchrotron emission signatures of shocks driven by active galactic nucleus (AGN) wind in elliptical galaxies based on our two-dimensional axisymmetric hydrodynamic MACER numerical simulations. Using these simulation…

Astrophysics of Galaxies · Physics 2026-01-14 Haojie Xia , Feng Yuan , Zhiyuan Li , Bocheng Zhu

We present hand-curated size measurements for a sample of 2,002 multiple-component radio AGNs in the Radio sources associated with Optical Galaxies and having Unresolved or Extended morphologies I (ROGUE I) catalog. The sources span total…

Powerful, radio-loud active galactic nuclei (AGN) are associated with one of the most important forms of AGN feedback, and understanding how they are triggered is key to properly incorporating them into models of galaxy evolution. Here, we…

In this paper I present dynamic models of the radio source Centaurus A, and critique possible models of in situ particle reacceleration (ISR) within the radio lobes. The radio and gamma-ray data require neither homogeneous plasma nor…

Astrophysics of Galaxies · Physics 2015-06-18 Jean A. Eilek
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