Results 11 to 20 of about 35,434 (190)

On the origin of X-shaped radio galaxies [PDF]

Research in Astronomy and Astrophysics, 2012
After a brief, critical review of the leading explanations proposed for the small but important subset of radio galaxies showing an X-shaped morphology (XRGs) we propose a generalized model, based on the jet-shell interaction and spin-flip hypotheses ...
Peter L. Biermann, L. Gergely, Paul J. Wiita   +2 more
core   +6 more sources

Multifrequency JVLA observations of the X-shaped radio galaxy in Abell 3670 [PDF]

Astronomy & Astrophysics, 2019
Context. X-shaped radio galaxies (XRGs) exhibit a pair of bright primary lobes and a pair of weak secondary lobes (“wings”), which are oriented with an angle that gives the structure a cross-like shape.
L. Bruno, Myriam Gitti, A. Zanichelli, L. Gregorini   +3 more
semanticscholar   +8 more sources

Discovery of X-shaped morphology of the giant radio galaxy 0503-286 [PDF]

Astronomy & Astrophysics, 2022
The high surface-brightness sensitivity of the GLEAM survey image of the giant radio galaxy GRG 0503-28 at 70-230 MHz has revealed an inversion-symmetric bending of its two lobes, while maintaining between their bent portions a ∼ 200 kpc wide strip-like ...
Pratik Dabhade, Gopal Krishna
semanticscholar   +7 more sources

Hydrodynamical backflow in X-shaped radio galaxy PKS 2014−55 [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
We present MeerKAT 1.28 GHz total-intensity, polarization, and spectral-index images covering the giant (projected length $l \approx 1.57$~Mpc) X-shaped radio source PKS~2014$-$55 with an unprecedented combination of brightness sensitivity and angular ...
W. D. Cotton, K. Thorat, J. J. Condon, B. S. Frank, G I G Józsa, S. V. White, Roger Deane, Nadeem Oozeer, Marcellin Atemkeng, Hertzog L. Bester, B. L. Fanaroff, R S Kupa, O. Smirnov, T. Mauch, V. Krishnan, F. Camilo   +15 more
semanticscholar   +7 more sources

X-shaped Radio Galaxies: Optical Properties, Large-scale Environment, and Relationship to Radio Structure [PDF]

The Astrophysical Journal, 2019
In pursuit of clues to the origin of “winged” or X-shaped radio galaxies (XRGs) we investigate the parent galaxies of a large sample of 106 XRGs for optical–radio axes alignment, interstellar medium, black hole mass, and large-scale environment.
Ravi Joshi, Gopal Krishna, Xiaolong Yang, Jingjing Shi, Si-Yue Yu, Paul J. Wiita, Luis C. Ho, Xue-Bing Wu, Tao An, Ran Wang, Smitha Subramanian, Hassen M. Yesuf   +11 more
semanticscholar   +6 more sources

AChandraStudy of the Multicomponent X‐Ray Emission from the X‐shaped Radio Galaxy 3C 403 [PDF]

The Astrophysical Journal, 2005
We present results from a 49.4 ks Chandra ACIS-S observation of the nearby (z = 0.059) X-shaped FR type II (FR II) radio galaxy 3C 403. This is the first Chandra observation of an X-shaped radio galaxy, and one of the goals of this pioneering study is to
R. P. Kraft, M. J. Hardcastle, D. M. Worrall, S. S. Murray   +3 more
semanticscholar   +8 more sources

Dynamical analysis of the complex radio structure in 3C 293: clues on a rapid jet realignment in X-shaped radio galaxies [PDF]

Astronomy & Astrophysics, 2016
Context. Radio galaxies classified as X-shaped/winged, are characterised by two pairs of extended and misaligned lobes, which suggest a rapid realignment of the jet axis, for which a potential cause (including binary supermassive black holes, a black ...
J. Machalski, M. Jamrozy, Ł. Stawarz, M. Weżgowiec   +3 more
semanticscholar   +8 more sources

A DEEP CHANDRA OBSERVATION OF THE X-SHAPED RADIO GALAXY 4C +00.58: A CANDIDATE FOR MERGER-INDUCED REORIENTATION? [PDF]

The Astrophysical Journal, 2010
Although rapid reorientation of a black hole spin axis (lasting less than a few megayears) has been suggested as a mechanism for the formation of wings in X-shaped radio galaxies (XRGs), to date no convincing case of reorientation has been found in any ...
Edmund Hodges‐Kluck, C. S. Reynolds, M. Coleman Miller, C. C. Cheung   +3 more
semanticscholar   +7 more sources

Relationship between X-shaped radio sources and double-double radio galaxies [PDF]

Proceedings of the International Astronomical Union, 2006
AbstractBoth the X-shaped radio galaxies and double-double radio galaxies (DDRGs) are suggested in the literature to be due to the binary-accretion disk interaction or to the coalescence of SMBBHs. These models suggest some relationship between the two types of radio sources. In this paper, we collected data from literatures for two samples of X-shaped
Xian Chen, F. K. Liu
semanticscholar   +4 more sources

Host Galaxies of X-Shaped Radio Sources [PDF]

, 2006
The majority of radiation from galaxies containing active galactic nuclei (AGNs) is emitted not by the stars composing the galaxy, but from an active source at the galactic center, most likely a supermassive black hole. Of particular interest are radio galaxies, the active galaxies emitting much of their radiation at radio wavelengths.
Alessondra Springmann
semanticscholar   +5 more sources