Simulations of Precessing Jets and the Formation of X-shaped Radio Galaxies [PDF]
The Astrophysical Journal, 2023 Jet precession is sometimes invoked to explain asymmetries in radio galaxy (RG) jets and “X/S/Z-shaped” RGs, caused by the presence of a binary black hole companion to the source active galactic nucleus or by accretion instabilities.
Chris Nolting, Jay Ball, Tri M. Nguyen
doaj +8 more sources
Hydrodynamic Models of Radio Galaxy Morphology: Winged and X-shaped Sources [PDF]
The Astrophysical Journal, 2011 We present three-dimensional hydrodynamic models of radio galaxies interacting with initially relaxed hot atmospheres and explore the significant off-axis radio lobe structures which result under certain conditions.
Hodges-Kluck, Edmund J. +1 more
core +6 more sources
The Origin of X-shaped Radio Galaxies: Clues from the Z-symmetric Secondary Lobes [PDF]
The Astrophysical Journal, 2003 Existing radio images of a few X-shaped radio galaxies reveal Z-symmetric morphologies in their weaker secondary lobes which cannot be naturally explained by either the galactic merger or radio-lobe backflow scenarios, the two dominant models for these X-
Charmandaris V. +9 more
core +6 more sources
Orientation and size of the `Z' in `X'-shaped radio galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 Some X-shaped radio galaxies show a Z-symmetric morphology in the less luminous secondary lobes. Within the scenario of a merger between two galaxies, each hosting a supermassive black hole in its center, this structure has been explained before: As the ...
Begelman +49 more
core +6 more sources
On the origin of X-shaped radio-sources: new insights from the properties of their host galaxies [PDF]
Astronomy & Astrophysics, 2002 A significant fraction of extended radio sources presents a peculiar X-shaped radio morphology: in addition to the classical double lobed structure, radio emission is also observed along a second axis of symmetry in the form of diffuse wings or tails. We
A. Capetti +20 more
core +8 more sources
Restarting engine in an X-shaped radio galaxy [PDF]
Proceedings of From Planets to Dark Energy: the Modern Radio Universe — PoS(MRU), 2008 J2018-556, an X-shaped FR-I radio galaxy provides a unique opportunity to discuss the formation scenarios for the extended structures seen in this class of radio sources.
L. Saripalli +3 more
semanticscholar +8 more sources
X-shaped radio galaxies as observational evidence for the interaction of supermassive binary black holes and accretion disk at pc scale [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 A supermassive black hole binary may form during galaxy mergering. we investigate the interaction of the supermassive binary black holes (SMBBHs) and an accretion disk and show that the detected X-shaped structure in some FRII radio galaxies may be due ...
F. K. Liu, Sudou
core +4 more sources
X-shaped radio galaxy 3C 223.1: A 'double boomerang' with an anomalous spectral gradient [PDF]
Astronomy & Astrophysics, 2022 A comparison of the recent LOFAR 144 MHz map of the radio source 3C 223.1 (J094124.028+394441.95) with the VLA maps at 4.9 GHz and 8.3 GHz that we built based on archival data, establishes this X-shaped radio galaxy (XRG) as a singularly robust case ...
Gopal Krishna, P. Dabhade
semanticscholar +5 more sources
Bridging the Bondi and Event Horizon Scales: 3D GRMHD Simulations Reveal X-shaped Radio Galaxy Morphology [PDF]
The Astrophysical Journal Letters, 2022 X-shaped radio galaxies (XRGs) produce misaligned X-shaped jet pairs and make up ≲10% of radio galaxies. XRGs are thought to emerge in galaxies featuring a binary supermassive black hole (SMBH), SMBH merger, or large-scale ambient medium asymmetry.
A. Lalakos +8 more
semanticscholar +5 more sources
Discovery of X-shaped morphology of the giant radio galaxy GRG GRG 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 ...
P. Dabhade, Gopal-Krishna
semanticscholar +7 more sources