Results 11 to 20 of about 375 (147)
Deciphering the Morphological Origins of X-shaped Radio Galaxies: Numerical Modeling of Backflow versus Jet Reorientation [PDF]
The Astrophysical Journal Supplement Series, 2023 Abstract X-shaped radio galaxies (XRGs) develop when certain extragalactic jets deviate from their propagation path. An asymmetric ambient medium (backflow model) or complex active galactic nucleus activity (jet-reorientation model) enforcing the jet direction to deviate may cause these structures.
Gourab Giri +2 more
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The optical spectra of X-shaped radio galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 X-shaped radio galaxies are defined by their peculiar large-scale radio morphology. In addition to the classical double-lobed structure they have a pair of low-luminosity wings that straddles the nucleus at almost right angles to the active lobes, thus giving the impression of an 'X'.
Hermine Landt +2 more
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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
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Hydrodynamical backflow in X-shaped radio galaxy PKS 2014−55 [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT We present MeerKAT 1.28 GHz total-intensity, polarization, and spectral-index images covering the giant (projected length l ≈ 1.57 Mpc) X-shaped radio source PKS 2014−55 with an unprecedented combination of brightness sensitivity and angular resolution.
W. D. Cotton +15 more
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Modelling X-shaped Radio Galaxies: Dynamical and Emission Signatures from the Back-flow model [PDF]
Astronomy & Astrophysics, 2022 Context. Active galactic nuclei typically show the presence of radio jets ranging from sub-kiloparsec to megaparsec scales. Some of these radio galaxies show distortion in their jets, forming tailed or winged sources. X-shaped radio galaxies (XRGs) are a sub-class of winged sources, the formation mechanism of which is still unclear. Aims.
Gourab Giri +5 more
+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. Though several theoretical models have been proposed to explain their origin, there is currently not a general consensus on a formation scenario.Aims.We
L. Bruno +3 more
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The X-shaped Radio Galaxy J0725+5835 is Associated with an AGN Pair [PDF]
The Astrophysical Journal, 2022 Abstract 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. To clarify this, we conducted a 5 GHz observation with the European VLBI Network (EVN) of XRG J0725+5835, which resembles the ...
Xiaolong Yang +8 more
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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. With a focus on the "winged" and "X-shaped" radio galaxy population, we confirm the importance of observed trends such as the connection ...
Edmund J. Hodges-Kluck +1 more
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‘Normal’ Fanaroff-Riley type II radio galaxies as a probe of the nature of X-shaped radio sources [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 We present a multiwavelength radio study of a sample of nearby Fanaroff-Riley class II (FRII) radio galaxies, matched with the sample of known X-shaped radio sources in size, morphological properties and redshift, using new Giant Metrewave Radio Telescope (GMRT) data and archival data from the Very Large Array (VLA).
D. Lal, M. J. Hardcastle, Ralph Kraft
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THECHANDRAVIEW OF NEARBY $\mathsf {X}$-SHAPED RADIO GALAXIES [PDF]
The Astrophysical Journal, 2010 65 pages in pre-print form incl. 9 figures (multi-page), 7 tables, and notes.
Edmund Hodges‐Kluck +3 more
+6 more sources