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相关论文: Tracing jet--ISM interaction in young AGN: correla…

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We report the discovery of kinematic shock signatures associated with a localized radio jet interaction in the merging Seyfert galaxy NGC 5929. We explore the velocity-dependent ionization structure of the gas and find that low ionization…

高能天体物理现象 · 物理学 2015-05-18 D. J. Rosario , M. Whittle , C. H. Nelson , A. S. Wilson

We present near-infrared spectra of young radio quasars [P(1.4GHz) ~ 26-27 W/Hz] selected from the Wide-Field Infrared Survey Explorer. The detected objects have typical redshifts of z ~ 1.6-2.5 and bolometric luminosities ~ 10^47 erg/s.…

宇宙学与河外天体物理 · 物理学 2015-06-15 Minjin Kim , Luis C. Ho , Carol J. Lonsdale , Mark Lacy , Andrew W. Blain , Amy E. Kimball

We present detailed observations of photoionization conditions and galaxy kinematics in eleven z$=1.39-2.59$ radio-loud quasar host galaxies. Data was taken with OSIRIS integral field spectrograph (IFS) and the adaptive optics system at the…

We conducted 22~GHz 1" JVLA imaging of 100 radio-quiet X-ray selected AGN from the Swift-BAT survey. We find AGN-driven kiloparsec-scale radio structures inconsistent with pure star formation in 11 AGN. The host galaxies of these AGN lie…

We present results from a coordinated, multi-epoch near-infrared and centimeter radio survey of young stellar objects (YSOs) in the Coronet, aimed at probing the connection between mass accretion and ionised mass loss. Using VLT-KMOS, we…

Active galactic nucleus (AGN) outflows including jets and ionized winds have been key phenomena such as jet collimation and AGN feedback to the host galaxy in astrophysics. Radio galaxies, a type of AGN with misaligned jets, have provided…

高能天体物理现象 · 物理学 2023-12-19 Taishu Kayanoki , Junjie Mao , Yasushi Fukazawa

We investigate the optical emission-line flux ratios of narrow-line regions, in order to determine whether the formation of AGN jets requires specific accretion conditions. We find that bright compact radio galaxies, which are powerful…

天体物理学 · 物理学 2011-02-11 Nozomu Kawakatu , Tohru Nagao , Jong-Hak Woo

We investigate the interaction between active galactic nuclei (AGN) jets and the intracluster medium (ICM) of galaxy clusters. Specifically, we study the efficiency with which jets can drive sound waves into the ICM. Previous works focused…

高能天体物理现象 · 物理学 2019-12-06 Christopher J. Bambic , Christopher S. Reynolds

We describe new efforts to model radio active galactic nuclei (AGN) in a cosmological context using the SAGE semi-analytic galaxy model. Our new method tracks the physical properties of radio jets in massive galaxies, including the…

星系天体物理 · 物理学 2017-08-09 Mojtaba Raouf , Stanislav S. Shabala , Darren J. Croton , Habib G. Khosroshahi , Maksym Bernyk

The study of both neutral and ionized gas in young radio sources is providing key information on the effect the radio plasma has on the ISM of these objects. We present results obtained for the compact radio sources PKS1549-79, 4C12.50 and…

天体物理学 · 物理学 2009-11-07 R. Morganti , C. Tadhunter , T. Oosterloo , J. Holt , A. Tzioumis , K. Wills

We present the first results from a JWST program studying the role played by powerful radio jets in the evolution of the most massive galaxies at the onset of Cosmic Noon. Using NIRSpec integral field spectroscopy, we detect 24 rest-frame…

We present an investigation of the X-ray absorption features predicted by hydrodynamic simulations of radio galaxies interacting with the intracluster medium (ICM) of their host galaxy clusters. We show how these absorption lines can be…

天体物理学 · 物理学 2009-11-11 Franziska Koeckert , Christopher S. Reynolds

We report on the study of an intriguing active galaxy that was selected as a potential multiple supermassive black hole merger in the early-type host SDSS J151709.20+335324.7 (z=0.135). Ground-based SDSS imaging reveals two blue structures…

宇宙学与河外天体物理 · 物理学 2015-05-18 D. J. Rosario , G. A. Shields , G. B. Taylor , S. Salviander , K. L. Smith

We analyzed near-infrared data of the nearby galaxy IC5063 taken with the Very Large Telescope SINFONI instrument. IC5063 is an elliptical galaxy that has a radio jet nearly aligned with the major axis of a gas disk in its center. The data…

星系天体物理 · 物理学 2015-12-23 K. M. Dasyra , A. C. Bostrom , F. Combes , N. Vlahakis

We present multi-wavelength observations of the nearby spiral galaxy NGC 5938 (Araish) to investigate the origin of its radio emission, specifically the contribution from active galactic nucleus (AGN) activity and star formation. Using…

We present new ATCA 17- and 24-GHz radio images and ESO-NTT optical spectra of the radio-loud Seyfert galaxy IC5063, the first galaxy in which a fast (~ 600 km/s) outflow of neutral hydrogen was discovered. The new radio data confirm the…

天体物理学 · 物理学 2009-11-13 R. Morganti , J. Holt , L. Saripalli , T. A. Oosterloo , C. N. Tadhunter

Several studies support the existence of a link between the AGN and star formation activity. Radio jets have been argued to be an ideal mechanism for direct interaction between the AGN and the host galaxy. A drawback of previous surveys of…

Many active galactic nuclei (AGN) and particularly narrow-line Seyfert 1 (NLS1) galaxies, usually exhibit blueshifts and blue wings in several emission lines, which are mainly associated with outflows and strong winds. In order to study the…

星系天体物理 · 物理学 2018-07-18 Eduardo O. Schmidt , Gabriel A. Oio , Diego Ferreiro , Luis Vega , Walter Weidmann

Evidence of efficient acceleration of cosmic rays in massive young stellar objects has been recently reported. Among these massive protostars, S255 NIRS 3 for which extreme flaring events associated with radio jets have been detected, is…

高能天体物理现象 · 物理学 2023-05-31 Emma de Oña Wilhelmi , Rubén López-Coto , Yang Su

According to radiative models, radio galaxies are predicted to produce gamma rays from the earliest stages of their evolution onwards.The study of the high-energy emission from young radio sources is crucial for providing information on the…

高能天体物理现象 · 物理学 2021-09-23 Giacomo Principe , Leonardo Di Venere , Giulia Migliori , Monica Orienti , Filippo D'Ammando