Results 11 to 20 of about 8,445,656 (161)

The X-shaped Radio Galaxy J0725+5835 is Associated with an AGN Pair [PDF]

open access: yesThe 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.
Yang, Xiaolong   +26 more
core   +3 more sources

Host Galaxies of X-Shaped Radio Sources [PDF]

open access: yes, 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.
Springmann, Alessondra   +1 more
core   +4 more sources

Spectral index variation across X-shaped radio galaxies [PDF]

open access: yes, 2023
The formation mechanism of the enigmatic subclass of radio galaxies, called 'X-shaped radio galaxies' (XRGs), or 'winged' radio galaxies, which account for $\sim 10\%$ of the radio galaxy population, can be effectively constrained using the radio ...
Patra, Dusmanta   +2 more
core   +3 more sources

Orientation and size of the `Z\u27 in `X\u27-shaped radio galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2005
Restricted Access. An open access version is available at arXiv.org.(one of the alternative locations)Some X-shaped radio galaxies show a Z-symmetric morphology in the less luminous secondary lobes.
Zier, C., C. Zier, Zier, Christian
core   +5 more sources

Normal FRII Radio Galaxies as a Probe of the Nature of X-Shaped Radio Sources [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2008
We present amultiwavelength 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 (
Lal, D.V.   +5 more
core   +5 more sources

Origin of the Double-peaked Narrow Emission Lines in the Optical Spectra of X-shaped Radio Galaxies

open access: yesThe Astrophysical Journal
We investigate X-shaped radio galaxies (XRGs) with optical double-peaked narrow emission lines (DPNELs) as potential hosts of dual or binary supermassive black holes (SMBHs).
Ghosh Prajnadipt   +15 more
doaj   +3 more sources

Restarting engine in an X-shaped radio galaxy [PDF]

open access: yesProceedings 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. An understanding of the origin of X-shaped source structures has important implications for radio galaxy models as well as black hole-black hole mergers.
Saripalli, Lakshmi   +3 more
openaire   +3 more sources

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

open access: yesResearch 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. The most popular scenarios for this intriguing phenomenon invoke either hydrodynamical backflows and ...
Gopal-Krishna   +3 more
openaire   +2 more sources

The Chandra View of Nearby X-shaped Radio Galaxies [PDF]

open access: yesThe Astrophysical Journal, 2009
65 pages in pre-print form incl. 9 figures (multi-page), 7 tables, and notes.
Hodges-Kluck, Edmund   +3 more
openaire   +3 more sources

A Unified Framework for X-shaped Radio Galaxies

open access: yesThe Astrophysical Journal, 2020
Abstract We propose a radically different picture for X-shaped radio galaxies compared with existing models as transition objects between cold-mode accreting, low-spinning retrograde black holes and low-spinning prograde black holes. This model explains their smaller average black hole masses; their general aversion for cluster compared ...
David Garofalo   +5 more
openaire   +2 more sources

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