Results 21 to 30 of about 307 (137)

On the origin of X-shaped radio-sources: New insights from the properties of their host galaxies [PDF]

open access: yesAstronomy & 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 re-examine the origin of these extensions relating the radio morphology to the properties of their ...
Capetti, A.   +5 more
openaire   +2 more sources

Spectral index variation across X-shaped radio galaxies

open access: yes, 2023
20 pages, 2 figures, 2 tables, accepted for publication in ...
Patra, Dusmanta   +2 more
openaire   +2 more sources

Dynamical analysis of the complex radio structure in 3C 293: clues on a rapid jet realignment in X-shaped radio galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2016
Astronomy & Astrophysics, in ...
Machalski, Jerzy   +3 more
openaire   +3 more sources

Discovery of an unusual radio galaxy with a hybrid double-double and X-shaped morphology [PDF]

open access: yesProceedings of the International Astronomical Union, 2012
AbstractWe report the discovery of the first ‘X’-shaped double-double radio galaxy (DDRG), MRC0929+164 (J0932+1611), from FIRST radio survey. The intersection angle of the lines of two pairs of radio lobes is around 20.6° for this object, much larger than other DDRGs.
C. C. Wang   +4 more
openaire   +1 more source

GMRT Low-frequency Imaging of an Extended Sample of X-shaped Radio Galaxies [PDF]

open access: yesThe Astronomical Journal, 2019
Abstract We present a low-frequency imaging study of an extended sample of X-shaped radio sources using the Giant Metrewave Radio Telescope (GMRT) at two frequencies (610 and 240 MHz). The sources were drawn from a Very Large Array Radio Images of the Sky at Twenty-Centimeters (FIRST) selected sample and extend an initial GMRT study at ...
Dharam V. Lal   +3 more
openaire   +2 more sources

Modelling X-shaped radio galaxies: Dynamical and emission signatures from the Back-flow model

open access: yesAstronomy & 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
openaire   +3 more sources

Starbursts and black hole masses in X-shaped radio galaxies: Signatures of a merger event? [PDF]

open access: yesAstronomy & Astrophysics, 2012
9 pages, 10 figures, accepted for publication in Astronomy & ...
Mezcua, M.   +3 more
openaire   +4 more sources

Detection of a parsec-scale, compact, and fading ejecta from an accreting massive black hole

open access: yesAstronomy & Astrophysics
Dwarf galaxies, characterized by their low luminosities and masses, are excellent candidates for searches for intermediate-mass black holes (IMBHs), particularly when they show strong accretion and ejection activity.
Li Chao   +4 more
doaj   +1 more source

Origin of X-shaped radio-sources: further insights from the properties of their host galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2016
Accepted for publication in A& ...
Melissa Gillone   +2 more
openaire   +3 more sources

Deciphering the Morphological Origins of X-shaped Radio Galaxies: Numerical Modeling of Backflow versus Jet Reorientation

open access: yesThe 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
openaire   +3 more sources

Home - About - Disclaimer - Privacy