pith. sign in

Accretion Disk Model of Short-Timescale Intermittent Activity in Young Radio Sources

2 Pith papers cite this work. Polarity classification is still indexing.

2 Pith papers citing it
abstract

We associate the existence of short-lived compact radio sources with the intermittent activity of the central engine caused by a radiation pressure instability within an accretion disk. Such objects may constitute a numerous sub-class of Giga-Hertz Peaked Spectrum sources, in accordance with the population studies of radio-loud active galaxies, as well as detailed investigations of their radio morphologies. We perform the model computations assuming the viscosity parametrization as proportional to a geometrical mean of the total and gas pressure. The implied timescales are consistent with the observed ages of the sources. The duration of an active phase for a moderate accretion rate is short enough (< 10^3-10^4 years) that the ejecta are confined within the host galaxy and thus these sources cannot evolve into large size radio galaxies unless they are close to the Eddington limit.

fields

astro-ph.GA 2

years

2026 2

verdicts

UNVERDICTED 2

clear filters

representative citing papers

Compact radio galaxies: the case of FR0s

astro-ph.GA · 2026-06-24 · unverdicted · novelty 3.0

FR0 radio galaxies are abundant compact sources whose small sizes challenge standard evolutionary models, and SKA observations are expected to clarify their jet physics and demographics.

citing papers explorer

Showing 2 of 2 citing papers after filters.

  • Flagging Super-Eddington Candidates among Jetted, {\gamma}-Ray-Emitting AGN astro-ph.GA · 2026-06-09 · unverdicted · none · ref 44 · internal anchor

    The E1/MS framework flags super-Eddington candidates in jetted gamma-ray AGN, with some showing jet-consistent radio properties and gamma-ray NLS1s showing xA spectra.

  • Compact radio galaxies: the case of FR0s astro-ph.GA · 2026-06-24 · unverdicted · none · ref 159 · internal anchor

    FR0 radio galaxies are abundant compact sources whose small sizes challenge standard evolutionary models, and SKA observations are expected to clarify their jet physics and demographics.