Results 1 to 10 of about 35,563 (190)
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
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 +5 more
semanticscholar +9 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.
Aretaios Lalakos +8 more
semanticscholar +5 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
semanticscholar +5 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
The X-shaped Radio Galaxy J0725+5835 is Associated with an AGN Pair [PDF]
The 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
semanticscholar +5 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 +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 +15 more
semanticscholar +7 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