A physically-motivated perspective of the Fanaroff-Riley classification of radio galaxies [PDF]
, 2023 A small subset of extragalactic double radio sources, termed HYMORS (HYbrid MOrpholgy Radio Sources), is distinguished by a very unusual, hybrid morphology in terms of the Fanaroff-Riley (FR) classification. In HYMORS, one radio lobe appears edge-darkened (FR I), while the other shows a well-defined emission peak near its outer edge (edge-brightened ...
Gopal‐Krishna +3 more
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Fundamental properties of Fanaroff-Riley type II radio galaxies investigated via Monte Carlo simulations [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 Accepted to MNRAS.
A. D. Kapińska +2 more
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Neutrino bursts from Fanaroff–Riley I radio galaxies [PDF]
Physics Letters B, 2004 On the basis of existing observations (at the 4.5 level) of TeV gamma-ray outbursts from the Fanaroff-Riley I (FRI) radio galaxy Centaurus A, we estimate the accompanying neutrino flux in a scenario where both photons and neutrinos emerge from pion decay. We find a neutrino flux on Earth dF_ /dE_ = 4.5\times 10^{-11} (E_ /TeV)^{-2} TeV^{-1} cm^{-2}
Luis A. Anchordoqui +3 more
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Structures of the magnetoionic media around the Fanaroff-Riley Class I radio galaxies 3C 31 and Hydra A [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 We use high-quality Very Large Array (VLA) images of the Fanaroff-Riley Class I radio galaxy 3C 31 at six frequencies in the range 1365-8440 MHz to explore the spatial scale and origin of the rotation measure (RM) fluctuations on the line of sight to the radio source.
R. A. Laing +3 more
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When Less Is More: Are Radio Galaxies below the Fanaroff-Riley Break More Polarized on Parsec Scales? [PDF]
The Astrophysical Journal, 2005 10 pages, 4 figures, to be published in the Astrophysical Journal ...
P. Kharb, P. Shastri, D. C. Gabuzda
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The Parsec-Scale Structure and Evolution of the Nearby Fanaroff-Riley Type II Radio Galaxy Pictor A [PDF]
The Astronomical Journal, 2000 We present very long baseline interferometry (VLBI) images of the core emission from a nearby bright FR II radio galaxy, Pictor A, revealing its parsec-scale jet structure and evolution for the first time. These data constitute a significant addition to our knowledge of powerful radio galaxies on the smallest scales, effectively doubling the number ...
S. J. Tingay +9 more
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Structure of the magnetoionic medium around the Fanaroff-Riley Class I radio galaxy 3C 449 [PDF]
Astronomy and Astrophysics, 2010 Aims. The goal of this work is to constrain the strength and structure of the magnetic field associated with the environment of the radio source 3C 449 by using observations of Faraday rotation, which we model with a structure function technique, and by comparison with numerical simulations.
D. Guidetti +5 more
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THE γ-RAY EMISSION REGION IN THE FANAROFF-RILEY II RADIO GALAXY 3C 111 [PDF]
The Astrophysical Journal, 2012 The broad-line radio galaxy 3C 111, characterized by a Fanaroff-Riley II (FRII) radio morphology, is one of the sources of the misaligned active galactic nucleus sample, consisting of radio galaxies and steep spectrum radio quasars, recently detected by the Fermi Large Area Telescope (LAT).
P. Grandi, E. Torresi, C. Stanghellini
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Complementary Constraints from Fanaroff‐Riley Type IIb Radio Galaxies and X‐Ray Gas Mass Fractions in Clusters on Nonstandard Cosmological Models [PDF]
The Astrophysical Journal, 2005 We use recent measurements of the dimensionless coordinate distances from Fanaroff-Riley type IIb radio galaxies and the X-ray gas mass fractions in clusters to constrain the parameters of a nonstandard cosmological model. This work complements our recent analysis of the Type Ia supernova data within a non-Riemannian cosmological model.
Dirk Puetzfeld, M. Pohl, Zong‐Hong Zhu
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Molecular Gas in 3C 293: The First Detection of CO Emission and Absorption in a Fanaroff‐Riley Type II Radio Galaxy [PDF]
The Astrophysical Journal, 1999 The —rst detection of CO emission in a FanaroU and Riley type II (i.e., edge-brightened radio lobe morphology) radio galaxy is presented. Multiwavelength (0.36¨2.17 km) imaging of 3C 293 shows it to be a disk galaxy with an optical jet or tidal tail extending toward what appears to be a companion galaxy 28 kpc away via a low surface brightness envelope.
A. S. Evans +3 more
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