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 +6 more sources
The Origin of X-shaped Radio Galaxies: Clues from the Z-symmetric Secondary Lobes [PDF]
, 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-
Gopal‐Krishna +2 more
core +5 more sources
On the origin of X-shaped radio-sources: New insights from the properties of their host galaxies [PDF]
, 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 +5 more
core +6 more sources
HYDRODYNAMIC MODELS OF RADIO GALAXY MORPHOLOGY: WINGED AND X-SHAPED SOURCES [PDF]
, 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.
Edmund J. Hodges-Kluck +1 more
core +5 more sources
Orientation and size of the ‘Z’ in X-shaped radio galaxies [PDF]
, 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 ...
Christian J. Zier
core +6 more sources
X-shaped radio galaxies as observational evidence for the interaction of supermassive binary black holes and accretion disc at parsec scale [PDF]
, 2004 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
core +4 more sources
The X-shaped Radio Galaxy J0725+5835 is Associated with an AGN Pair [PDF]
Astrophysical Journal, 2022 X-shaped radio galaxies (XRGs) are those that exhibit two pairs of unaligned radio lobes (main radio lobes and wings). One of the promising models for the peculiar morphology is jet reorientation.
Xiaolong Yang +8 more
openalex +3 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, Pratik Dabhade
openalex +3 more sources
X-shaped Radio Galaxies: Optical Properties, Large-scale Environment, and Relationship to Radio Structure [PDF]
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 +11 more
openalex +3 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
openalex +3 more sources