Results 61 to 70 of about 1,242,014 (263)
Hunting Gamma-Ray-emitting FR0 Radio Galaxies in Wide-field Sky Surveys
The Astrophysical Journal, 2023 The latest entry in the jetted active galactic nuclei (AGN) family is the Fanaroff–Riley type 0 (FR0) radio galaxies. They share several observational characteristics, e.g., nuclear emission and host galaxy morphology, with FR I sources; however, they ...
Meghana Pannikkote +2 more
doaj +1 more source
INVERSE DEPOLARIZATION: A POTENTIAL PROBE OF INTERNAL FARADAY ROTATION AND HELICAL MAGNETIC FIELDS IN EXTRAGALACTIC RADIO JETS [PDF]
, 2012 Motivated by recent observations that show increasing fractional linear polarization with increasing wavelength in a small number of optically thin jet features, i.e., “inverse depolarization,” we present a physical model that can explain this effect and
D. Homan
semanticscholar +1 more source
Radio Jet and Lobe of 3C273 [PDF]
Symposium - International Astronomical Union, 1986 The ‘superluminal’ motion observed in the cores of radio sources such as 3C273 is now accepted as evidence of relativistic motion within a few parsecs of the centre, but it is less clear whether such speeds persist out to kiloparsec scales. The one-sidedness of such sources is often cited as evidence of relativistic Doppler beaming, but could equally ...
openaire +2 more sources
Radio Loud AGN Unification: Connecting Jets and Accretion
EPJ Web of Conferences, 2013 While only a fraction of Active Galactic Nuclei are observed to host a powerful relativistic jet, a cohesive picture is emerging that radio-loud AGN may represent an important phase in the evolution of galaxies and the growth of the central super-massive
Meyer Eileen T. +3 more
doaj +1 more source
Black Hole, Jet, and Disk: The Universal Engine [PDF]
, 1995 In this paper I review the results of our ongoing project to investigate the coupling between accretion disk and radio jet in galactic nuclei and stellar mass black holes. We find a good correlation between the UV bump luminosity and the radio luminosities of AGN, which improves upon the usual [OIII]/radio correlations.
arxiv +1 more source
Interaction of Fanaroff–Riley class II radio jets with a randomly magnetized intracluster medium [PDF]
, 2011 M. Huarte-Espinosa, M. Krause, and P. Alexander, 'Interaction of Fanaroff–Riley class II radio jets with a randomly magnetized intracluster medium', Monthly Notices of the Royal Astronomical Society, Vol. 418, pp.
M. Huarte-Espinosa +2 more
semanticscholar +1 more source
The Astrophysical Journal, 2023 Dual and off-nucleus active supermassive black holes are expected to be common in the hierarchical structure formation paradigm, but their identification at parsec scales remains a challenge due to strict angular resolution requirements.
Yu-Ching Chen +7 more
doaj +1 more source
Influence of the jet opening angle on the derived kinematical parameters of blazar jets having uniform and stratified bulk motion [PDF]
Mon.Not.Roy.Astron.Soc.377:446-452,2007, 2007 We present analytical modelling of conical relativistic jets, in order to evaluate the role of the jet opening angle on certain key parameters that are inferred from VLBI radio observations of blazar nuclear jets. The key parameters evaluated are the orientation angle (i.e., the viewing angle) of the jet and the apparent speed and Doppler factor of the
arxiv +1 more source
Identifying a Point-Symmetrical Morphology in the Core-Collapse Supernova Remnant W44
UniverseI identify a point-symmetrical morphology in the core-collapse supernova remnant (CCSNR) W44 compatible with shaping by three or more pairs of jets in the jittering jets explosion mechanism (JJEM). Motivated by recent identifications of point-symmetrical
Noam Soker
doaj +1 more source
The Relativistic Jet Dichotomy and the End of the Blazar Sequence [PDF]
, 2020 Our understanding of the unification of jetted AGN has evolved greatly as jet samples have increased in size. Here, based on the largest-ever sample of over 2000 well-sampled jet spectral energy distributions, we examine the synchrotron peak frequency -- peak luminosity plane, and find little evidence for the anti-correlation known as the blazar ...
arxiv +1 more source