Pith. sign in

REVIEW 5 cited by

Extragalactic radio sources with hybrid morphology: implications for the Fanaroff-Riley dichotomy

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv astro-ph/0009441 v1 pith:4VDDQVNT submitted 2000-09-27 astro-ph

Extragalactic radio sources with hybrid morphology: implications for the Fanaroff-Riley dichotomy

classification astro-ph
keywords radiosourcesdichotomycentralclassdoubleengineexplanations
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

We provide observational and theoretical perspectives on the currently much debated issue of the Fanaroff-Riley (FR) morphological dichotomy of extragalactic radio sources. In this context we introduce a new, albeit rare, class of double radio sources in which the two lobes exhibit clearly different FR morphologies. It is argued that such `HYbrid MOrphology Radio Sources', or HYMORS, could be used to effectively constrain the theoretical mechanisms proposed for the FR dichotomy. Basically, the existence of HYMORS supports explanations for the FR dichotomy based upon jet interaction with the medium external to the central engine, and appears quite difficult to reconcile with the class of explanations that posit fundamental differences in the central engine, such as black hole spin or jet composition, to be responsible for the two FR classes of double radio sources.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Simulating realistic radio morphologies of Fanaroff-Riley I jets in a self-regulating cool-core cluster

    astro-ph.GA 2026-06 unverdicted novelty 7.0

    Self-regulating AGN jets in MHD simulations of cool-core clusters yield realistic FRI radio morphologies viewed along the jet axis and account for frequency-independent lobe extents via 1-50 μG fields allowing both yo...

  2. RAD@home discovery of a bow-and-arrow radio galaxy tracing a ~560 kpc bow-shock structure in a multi-halo environment

    astro-ph.GA 2026-06 unverdicted novelty 5.0

    Citizen science discovery of a bow-and-arrow radio galaxy with ~560 kpc bow-shock-like structure in a multi-halo environment at z=0.159.

  3. Powerful Radio Sources in the Southern Sky. IV. Observations of the G4Jy-3CRE Catalog with the Australian Square Kilometre Array Pathfinder

    astro-ph.GA 2026-05 unverdicted novelty 5.0

    New ASKAP continuum imaging classifies jet morphologies in 173 G4Jy-3CRE sources (66% of sample) including 37 newly detected jets and identifies six new optical counterparts.

  4. Exploring the Influence of the Jet-environment Interactions on the Observed Asymmetry of Extragalactic Radio Sources with SKAO

    astro-ph.GA 2026-07 conditional novelty 2.5

    A review chapter argues that jet-environment interactions drive radio-source arm-length and flux asymmetries and that SKAO will enable population-scale tests of those effects.

  5. Source Finding and Characterisation for SKAO Science

    astro-ph.IM 2026-07 accept novelty 2.0

    A review of classical and ML source-finding and morphological classification techniques for SKAO-scale continuum and spectral-line surveys, with emphasis on limitations and pipeline needs.