Results 31 to 40 of about 183 (111)

Shock heating by Fanaroff–Riley type I radio sources in galaxy clusters [PDF]

open access: bronzeMonthly Notices of the Royal Astronomical Society: Letters, 2007
Abstract Feedback by active galactic nuclei (AGN) is frequently invoked to explain the cut-off of the galaxy luminosity function at the bright end and the absence of cooling flows in galaxy clusters. Meanwhile, there are recent observations of shock fronts around radio-loud AGN. Using realistic 3D simulations of jets in a galaxy cluster,
M. Brüggen   +4 more
openalex   +4 more sources

Discovery of a Fanaroff–Riley type 0 radio galaxy emitting at γ-ray energies [PDF]

open access: bronzeMonthly Notices of the Royal Astronomical Society, 2016
We present supporting evidence for the first association of a Fermi source, 3FGLJ1330.0-3818, with the FR0 radio galaxy Tol1326-379. FR0s represent the majority of the local radio loud AGN population but their nature is still unclear. They share the same properties of FRIs from the point of view of the nuclear and host properties, but they show a large
P. Grandi, A. Capetti, R. D. Baldi
openalex   +2 more sources

On the population of remnant Fanaroff–Riley type II radio galaxies and implications for radio source dynamics [PDF]

open access: greenMonthly Notices of the Royal Astronomical Society, 2017
The purpose of this work is two-fold: (1) to quantify the occurrence of ultrasteep spectrum remnant Fanaroff-Riley type II (FRII) radio galaxies in a 74 MHz flux-limited sample, and (2) perform Monte Carlo simulations of the population of active and remnant FRII radio galaxies to confront models of remnant lobe evolution, and to provide guidance for ...
L. Godfrey, R. Morganti, M. Brienza
openalex   +4 more sources

Multiwavelength Observations of the Second-Largest Known Fanaroff-Riley Type II Radio Galaxy, NVSS 2146+82 [PDF]

open access: bronzeThe Astronomical Journal, 2000
We present multifrequency VLA observations, multicolor CCD imaging, optical spectroscopy, and ROSAT HRI observations of the giant FR II radio galaxy NVSS 2146+82. This galaxy, which was discovered by the NRAO VLA Sky Survey, has an angular extent of nearly 20' from lobe to lobe.
Christopher Palma   +5 more
openalex   +2 more sources

The Relation between the Radio Emission of the Core and Host Galaxy Properties in Fanaroff–Riley Type I Radio Galaxies

open access: goldThe Astronomical Journal
The Fanaroff–Riley radio galaxies exhibit the most extensive radio emissions derived from the active nuclei of galaxies. They morphologically differ from the highly compact and bright radio galaxies observed as gigahertz peaked spectrum and compact steep
Halime Miraghaei
doaj   +2 more sources

On the relation between Fanaroff-Riley types I and II radio galaxies

open access: closedThe Astrophysical Journal, 1993
Recent optical observations of radio galaxies reveal a transition from F-R II morphology to F-R I morphology with increasing optical luminosity at fixed radio luminosity. This transition can occur if a highly supersonic jet which normally fuels F-R II sources is instead strongly decelerated near the nucleus, producing the transonic or subsonic flow ...
David S. De Young
openalex   +2 more sources

High-energy γ-ray properties of the Fanaroff-Riley type I radio galaxy NGC 1275 [PDF]

open access: bronzeMonthly Notices of the Royal Astronomical Society, 2011
A. M. Brown, Jenni Adams
openalex   +2 more sources

Three episodes of jet activity in the Fanaroff-Riley type II radio galaxy B0925+420 [PDF]

open access: bronzeMonthly Notices of the Royal Astronomical Society, 2007
C. Brocksopp   +3 more
openalex   +2 more sources

Why Are Some Radio Galaxies Detected by Fermi, but Others Not?

open access: yesUniverse, 2023
Aiming to answer an interesting question on why some radio sources can be detected by Fermi-LAT but others cannot, we compare several parameters of Fermi-detected Fanaroff-Riley radio galaxies (FFRs) and non-Fermi-detected sources (NFFRs), including the ...
Danyi Huang   +11 more
doaj   +1 more source

What determines the properties of the X-ray jets in Fanaroff-Riley type I radio galaxies? [PDF]

open access: bronzeMonthly Notices of the Royal Astronomical Society, 2012
Jeremy J. Harwood, Martin J. Hardcastle
openalex   +2 more sources

Home - About - Disclaimer - Privacy