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Related papers: Radio Continuum Jet in NGC 7479

200 papers

Motivated by recent observations that show increasing fractional linear polarization with increasing wavelength in a small number of optically thin jet features, i.e. "inverse depolarization", we present a physical model that can explain…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Daniel C. Homan

We report on the 2.5 arcsec (400 pc) resolution CO (J = 1 -> 0) observations covering the whole length of the bar in the strongly barred late-type spiral galaxy NGC 7479. CO emission is detected only along a dust lane that traverses the…

Astrophysics · Physics 2009-10-30 S. Laine , J. D. P. Kenney , M. S. Yun , S. T. Gottesman

This is the third paper of a series exploring the multi-frequency properties of a sample of eleven nearby low-excitation radio galaxies (LERGs) in the southern sky. We are conducting an extensive study of different galaxy components (stars,…

Astrophysics of Galaxies · Physics 2020-10-21 I. Ruffa , R. A. Laing , I. Prandoni , R. Paladino , P. Parma , T. A. Davis , M. Bureau

We present the results of high resolution VLBI observations at 1.6 and 4.9 GHz of the radio-loud Seyfert galaxy, Mrk 6. These observations are able to detect a compact radio core in this galaxy for the first time. The core has an inverted…

Astrophysics of Galaxies · Physics 2015-06-18 P. Kharb , C. P. O'Dea , S. A. Baum , M. J. Hardcastle , D. Dicken , J. H. Croston , B. Mingo , J. Noel-Storr

We present the results of a multi-epoch VLBA study of the powerful radio source 4C +12.50 (PKS 1345+125) at a wavelength of 2 cm. This compact radio source is associated with a hidden quasar whose host galaxy shows signs of a recent merger.…

Astrophysics · Physics 2009-11-07 M. L. Lister , K. I. Kellermann , R. C. Vermeulen , M. H. Cohen , J. A. Zensus , E. Ros

We have identified a large (~200 kpc), powerful double radio source whose host galaxy is clearly a disk and most likely a spiral. This FR I radio galaxy is located very near the center of the RC 0 cluster Abell 428. The existence of such an…

Astrophysics · Physics 2009-10-31 Michael J. Ledlow , Frazer N. Owen , Min S. Yun , John M. Hill

We present sub-milliarcsecond resolution total intensity and linear polarization VLBI images of 3C273, using concurrent 43 and 86 GHz data taken with the Very Long Baseline Array in May 2002. The structure seen in the innermost jet suggest…

Astrophysics · Physics 2009-11-11 Joanne M. Attridge , John F. C. Wardle , Daniel C. Homan

We present new radio observations of the z = 0.029 radio galaxy NGC 6109, a member of the 3CRR sample. We find the radio morphology of the counter-jet to be highly distorted, showing a unique 'doughnut' structure ~6 kpc in diameter. The…

Astrophysics of Galaxies · Physics 2018-08-15 Josie Rawes , Mark Birkinshaw , Diana M Worrall

We present radio emission, polarization, and Faraday rotation maps of the radio jet of the galaxy 3C303. From this data we derive the magnetoplasma and electrodynamic parameters of this 50 kpc long jet. For a {$\sim 2$} kpc segment of this…

High Energy Astrophysical Phenomena · Physics 2011-12-20 Philipp P. Kronberg , Richard V. E. Lovelace , Giovanni Lapenta , Stirling A. Colgate

We present 3.5cm and 6.2cm radio continuum maps in total and polarized intensity of the barred galaxies NGC 1097 and NGC 1365. Both galaxies exhibit radio ridges roughly overlapping with the massive dust lanes in the bar region. The…

Astrophysics · Physics 2009-11-11 R. Beck , A. Fletcher , A. Shukurov , A. Snodin , D. D. Sokoloff , M. Ehle , D. Moss , V. Shoutenkov

The Very Large Array has been used at five frequencies to study the structure and linear polarization of SS433 on scales as small as ~0.1" ~ 500 AU. Each jet consists of a sharp, curving ridge-line at the leading edge, plus significant…

We present for the first time a study of peculiar giant radio galaxy (GRG) J223301+131502 using deep multi-frequency radio observations from GMRT (323, 612, and 1300 MHz) and LOFAR (144 MHz) along with optical spectroscopic observations…

In order to clarify whether NGC 4631 has a unique magnetic field configuration in the central region along its disk, we present high-resolution Faraday-corrected polarization data. Radio continuum observations of NGC 4631 at 4.85 GHz were…

Astrophysics of Galaxies · Physics 2013-12-16 Silvia Carolina Mora , Marita Krause

The nearby Seyfert type galaxy NGC 1275 contains a bright radio nucleus at its center, revealed through high-spatial resolution imaging to be the source of the jets emanating from the galaxy. Coincident with the emergence of a new component…

High Energy Astrophysical Phenomena · Physics 2022-02-16 Pengfei Zhang , Zhongxiang Wang , Mark Gurwell , Paul J. Wiita

In inhomogeneous optically thick synchrotron sources a substantial part of the electron population at low energies can be hidden by self-absorption and overpowered by high energy electrons in optically thin emission. These invisible…

Astrophysics · Physics 2009-11-07 Thomas Beckert , Heino Falcke

We studied the polarization behavior of the quasar 3C 273 over the 1 mm wavelength band at ALMA with a total bandwidth of 7.5GHz across 223 to 243 GHz at 0.8 arcsec resolution, corresponding to 2.1 kpc at the distance of 3C 273. With these…

Astrophysics of Galaxies · Physics 2019-03-13 T. Hovatta , S. O'Sullivan , I. Martí-Vidal , T. Savolainen , A. Tchekhovskoy

The bending of radio galaxies in galaxy clusters is expected to be caused by interactions with the local environment. The physical processes responsible for jet bending, and their influence on the polarization properties of radio galaxies,…

Astrophysics of Galaxies · Physics 2026-01-16 S. Vanderwoude , E. Osinga , B. M. Gaensler , J. L. West , R. J. van Weeren

We present polarization images from the Karl G. Jansky Very Large Array (VLA) and the Giant {Metrewave} Radio Telescope (GMRT) at 5.5, 10 GHz and 663 MHz of the changing-look (CL) AGN, NGC3516. A transverse gradient in the rotation measure…

Astrophysics of Galaxies · Physics 2025-06-16 Salmoli Ghosh , P. Kharb , E. Sajjanhar , A. Pasetto , B. Sebastian

We present a polarization and Faraday rotation study of the hybrid morphology radio galaxy NGC 612 (PKS 0131-36), using Australian Telescope Compact Array observations from 1 to 3 GHz. In general, the results are consistent with an external…

High Energy Astrophysical Phenomena · Physics 2018-11-16 J. K. Banfield , S. P. O'Sullivan , M. H. Wieringa , B. H. C. Emonts

This is the first paper of a series exploring the multi-frequency properties of a sample of eleven nearby low excitation radio galaxies (LERGs) in the southern sky. We are conducting an extensive study of different galaxy components (stars,…