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.
Alessondra Springmann
semanticscholar +5 more sources
X-shaped Radio Galaxies: Optical Properties, Large-scale Environment, and Relationship to Radio Structure [PDF]
The 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
semanticscholar +6 more sources
Starbursts and black hole masses in X-shaped radio galaxies: Signatures of a merger event? [PDF]
Astronomy & Astrophysics, 2012 We present new spectroscopic identifications of 12 X-shaped radio galaxies and use the spectral data to derive starburst histories and masses of the nuclear supermassive black holes in these galaxies.
Mar Mezcua +3 more
core +8 more sources
Dynamical analysis of the complex radio structure in 3C 293: clues on a rapid jet realignment in X-shaped radio galaxies [PDF]
Astronomy & Astrophysics, 2016 Context. Radio galaxies classified as X-shaped/winged, are characterised by two pairs of extended and misaligned lobes, which suggest a rapid realignment of the jet axis, for which a potential cause (including binary supermassive black holes, a black ...
J. Machalski +3 more
semanticscholar +8 more sources
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
semanticscholar +4 more sources
X-Shaped Radio Galaxies and the Nanohertz Gravitational Wave Background [PDF]
Proceedings of the International Astronomical Union, 2015 AbstractCoalescence of supermassive black holes (SMBHs) in galaxy mergers is potentially the dominant contributor to the low frequency gravitational wave background (GWB). It was proposed by Merritt & Ekers that X-shaped radio galaxies are signposts of such coalescences and that their abundance might be used to predict the magnitude of the GWB ...
D. H. Roberts +2 more
semanticscholar +4 more sources
CGCG 292-057 - a radio galaxy with merger-modulated radio activity [PDF]
, 2012 We announce the discovery of a unique combination of features in a radio source identified with the merger galaxy CGCG 292−057. The radio galaxy both exhibits a highly complex, X-like structure and shows signs of recurrent activity in the form of double ...
D. Kozieł-Wierzbowska +5 more
semanticscholar +3 more sources
The innermost region of the water megamaser radio galaxy 3C 403 [PDF]
, 2007 Context. The standard unified scheme of active galactic nuclei requires the presence of high column densities of gas and dust potentially obscuring the central engine.
A. Tarchi +5 more
semanticscholar +3 more sources
Jet Interaction with Galaxy Cluster Mergers
The Astrophysical JournalActive galactic nucleus (AGN) bubbles in cool-core galaxy clusters are believed to facilitate the transport of cosmic-ray electrons (CRe) throughout the cluster.
P. Domínguez-Fernández +6 more
doaj +2 more sources
The large scale magnetic field structure of the spiral galaxy NGC 5775 [PDF]
, 2011 In order to better determine the large-scale 3D-structure of magnetic fields in spiral galaxies we present a Faraday rotation analysis of the edge-on spiral galaxy NGC 5775.
M. Soida +3 more
semanticscholar +5 more sources