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Related papers: A jet-cloud interaction in the 3C 196 environment

200 papers

We present a panoramic narrow-band imaging survey of [OII] emitters in and around the ClG J0218.3-0510 cluster at z=1.62 with Suprime-Cam on Subaru telescope. 352 [OII] emitters were identified on the basis of narrow-band excesses and…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Ken-ichi Tadaki , Tadayuki Kodama , Kazuaki Ota , Masao Hayashi , Yusei Koyama , Casey Papovich , Mark Brodwin , Masayuki Tanaka , Masanori Iye

The acceleration and radiative processes active in low-power radio hotspots are investigated by means of new deep near-infrared (NIR) and optical VLT observations, complemented with archival, high-sensitivity VLT, radio VLA and X-ray…

High Energy Astrophysical Phenomena · Physics 2020-05-20 G. Migliori , M. Orienti , L. Coccato , G. Brunetti , F. D'Ammando , K. -H. Mack , M. A. Prieto

We found a very large, 35 kpc, emission-line region around the Seyfert type 2 galaxy NGC 4388, using deep narrow-band imaging with the prime focus camera (Suprime-Cam) of the Subaru telescope. This region consists of many faint gas clouds…

We report the detection of luminous CO(3-2) line emission in the halo of the z=2.6 radio galaxy (HzRG) TXS0828+193, which has no detected counterpart at optical to mid-infrared wavelengths implying a stellar mass < few x10^9 M_sun and…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-13 N. P. H. Nesvadba , R. Neri , C. De Breuck , M. D. Lehnert , D. Downes , F. Walter , A. Omont , F. Boulanger , N. Seymour

In March 2018, Mukherjee (2018) reported the detection by VERITAS of very-high-energy emission (VHE; > 100 GeV) from 3C 264. This is the sixth, and second most distant, radio galaxy ever detected in the TeV regime. In this article we…

High Energy Astrophysical Phenomena · Physics 2019-07-10 B. Boccardi , G. Migliori , P. Grandi , E. Torresi , F. Mertens , V. Karamanavis , R. Angioni , C. Vignali

Volonteri et al. (2011) found that the number of radio-loud quasars above redshift 4 calculated from the luminosity function (based upon Swift/BAT observations) is much smaller than the number estimated from the known high-redshift beamed…

Astrophysics of Galaxies · Physics 2019-10-25 K. É. Gabányi , S. Frey , Z. Paragi , H. Cao , T. An , L. I. Gurvits , T. Sbarrato , K. Perger , K. Rozgonyi , Gy. Mező

In spring 2005 the blazar 3C 454.3 was observed in an unprecedented bright state from the near-IR to the hard X-ray frequencies. A mm outburst peaked in June-July 2005, and it was followed by a flux increase at high radio frequencies. In…

Astrophysics · Physics 2020-05-06 M. Villata , C. M. Raiteri , M. F. Aller

Extreme emission-line galaxies (EELGs) at redshift z=1-2 provide a unique view of metal-poor, starburst sources that are the likely drivers of the cosmic reionization at z$\geq6$. However, the molecular gas reservoirs of EELGs - the fuel…

The physical link between AGN activity and the suppression of star formation in their host galaxies is one of the major open questions of AGN feedback. The Spitzer space mission revealed a subset of nearby radio galaxies with unusually…

A neutrino outburst between September 2014 and March 2015 was discovered from the blazar TXS 0506+056 by an investigation of $9.5$ years of IceCube data, while the blazar was in a quiescent state during the outburst with a gamma-ray flux…

High Energy Astrophysical Phenomena · Physics 2022-12-29 Kai Wang , Ruo-Yu Liu , Zhuo Li , Xiang-Yu Wang , Zi-Gao Dai

We report the detection of infrared emission from the jet of the nearby FR I radio galaxy 3C 31. The jet was detected with the IRAC instrument on Spitzer at 4.5 micron, 5.8 micron, and 8.0 micron out to 30" (13 kpc) from the nucleus. We…

We present the X-ray analysis of a deep ~200 ksec Chandra observation of the compact steep spectrum radio-loud quasar 3C 186 (z=1.06) and investigate the contribution of the unresolved radio jet to the total X-ray emission. The spectral…

High Energy Astrophysical Phenomena · Physics 2015-06-04 G. Migliori , A. Siemiginowska , A. Celotti

The radio jets of radio galaxies in galaxy clusters are often bent due to the ram pressure of the intracluster medium. In this paper we start with a well-defined sample of galaxy clusters and subsequently identifying tailed radio sources in…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-02 Stefan van der Jagt , Erik Osinga , Reinout J. van Weeren , George K. Miley , Ian D. Roberts , Andrea Botteon , Alessandro Ignesti

We present the results of a Hubble Space Telescope (HST) survey of extended [OIII] emission in a sample of 60 nearby Seyfert galaxies (22 Seyfert 1's and 38 Seyfert 2's), selected by mostly isotropic properties. The comparison between the…

We propose a model to explain the ultra-bright GeV gamma-ray flares observed from the blazar \c454. The model is based on the concept of a relativistic jet interacting with compact gas condensations produced when a star (red giant) crosses…

High Energy Astrophysical Phenomena · Physics 2015-02-10 M. V. Barkov , D. V. Khangulyan , V. Bosch-Ramon , F. A. Aharonian , A. V. Dorodnitsyn

We present deep Very Large Array imaging of 3C~273 in order to determine the diffuse, large scale radio structure of this famous radio-loud quasar. Diffuse extended structure (radio lobes) is detected for the first time in these…

Astrophysics of Galaxies · Physics 2016-12-14 Brian Punsly , Preeti Kharb

We present the final observations of a complete sample of 37 radio galaxies from the Third Cambridge Catalog (3C) with redshift <0.3 and declination <20 degrees obtained with the VLT/MUSE optical integral field spectrograph. These data were…

We present new, deep 8.5-GHz VLA observations of the nearby, low-luminosity radio galaxy 3C 296 at resolutions from 0.25 to 5.5 arcsec. These show the intensity and polarization structures of the twin radio jets in detail. We also derive…

Astrophysics · Physics 2009-11-11 R. A. Laing , J. R. Canvin , A. H. Bridle , M. J. Hardcastle

We present an alternative interpretation of the observations of BR1202-0725 at z=4.695 and show that its properties are consistent with a relativistic jet, issuing from the quasar core, propagating into the inter-galactic medium and…

Astrophysics · Physics 2009-11-10 Ilana J. Klamer , Ron D. Ekers , Elaine M. Sadler , Richard W. Hunstead

We use archival WISE and Spitzer photometry to derive optical line fluxes for a sample of distant quasars at z ~6. We find evidence for exceptionally high equivalent width [OIII] emission (rest-frame EW ~400 {\AA}) similar to that inferred…

Astrophysics of Galaxies · Physics 2022-07-18 Bomee Lee , Ranga-Ram Chary