The High Energy View of FR0 Radio Galaxies

Abstract

A new class of low-power compact radio sources with limited jet structures, named FR0, is emerging from recent radio-optical surveys. This abundant population of radio galaxies, five times more numerous than FRIs in the local Universe (z$<$0.05), represent a potentially interesting target at high and very-high energies (greater than 100 GeV), as demonstrated by a single case of Fermi detection. Furthermore, these radio galaxies have been recently claimed to contribute non-negligibly to the extra-galactic $\gamma$-ray background and to be possible cosmic neutrino emitters. Here, we review the radio through X-ray properties of FR0s to predict their high-energy emission (from MeV to TeV), in light of the near-future facilities operating in this band.

arXiv commentReview, 18 pages. Accepted for publication in 'Galaxies' in Special Issue "Radio Galaxies at TeV Energies". Free download here:https://www.mdpi.com/2075-4434/7/3/76

References in corpus (54)

• The Seventh Data Release of the Sloan Digital Sky Survey
• Unified Schemes for Radio-Loud Active Galactic Nuclei
• The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission
• Fermi Large Area Telescope First Source Catalog
• Design Concepts for the Cherenkov Telescope Array
• Advection-Dominated Accretion: Self-Similarity and Bipolar Outflows
• Black Hole Spin and the Radio Loud/Quiet Dichotomy of Active Galactic Nuclei
• Modeling the Emission Processes in Blazars
• A sample of radio-loud AGN in the Sloan Digital Sky Survey
• VLBI Observations of a Complete Sample of Radio Galaxies. 10 Years Later
• Fermi Gamma-ray Imaging of a Radio Galaxy
• Discovery of very high energy gamma-ray emission from Centaurus A with H.E.S.S
• Revisiting the Fanaroff-Riley dichotomy and radio-galaxy morphology with the LOFAR Two-Metre Sky Survey (LoTSS)
• Drifting subpulses and inner acceleration regions in radio pulsars
• The active nuclei of z<1.0 3CRR radio sources
• Photohadronic origin of $\gamma$-ray BL Lac emission: implications for IceCube neutrinos
• Fermi Large Area Telescope Observations of Misaligned AGN
• Is the Giant Radio Galaxy M87 a TeV Gamma-Ray Emitter?
• Black hole evolution: III. Statistical properties of mass growth and spin evolution using large-scale hydrodynamical cosmological simulations
• A pilot study of the radio-emitting AGN population: the emerging new class of FR0 radio-galaxies
• The Nature of X-ray Bright Optically Normal Galaxies
• Luminosity function, sizes and FR dichotomy of radio-loud AGN
• A survey of Low Luminosity Compact sources and its implication for evolution of radio-loud AGNs. I. Radio data
• The accretion mechanism in low-power radio galaxies
• The local radio-galaxy population at 20 GHz
• FRII{\sl{CAT}}: A FIRST catalog of FR~II radio galaxies
• LeMMINGs. I. The eMERLIN legacy survey of nearby galaxies. 1.5-GHz parsec-scale radio structures and cores
• X-ray Properties of the GigaHertz-Peaked and Compact Steep Spectrum Sources
• The nuclear properties and extended morphologies of powerful radio galaxies: the roles of host galaxy and environment
• The Atlas3D project -- XXXI. Nuclear radio emission in nearby early-type galaxies
• High-resolution VLA observations of FR0 radio galaxies: properties and nature of compact radio sources
• Radio and spectroscopic properties of miniature radio galaxies: revealing the bulk of the radio-loud AGN population
• The role of fast magnetic reconnection on the radio and gamma-ray emission from the nuclear regions of microquasars and low luminosity AGNs
• The X-ray view of Giga-Hertz Peaked Spectrum Radio Galaxies
• Modelling TeV gamma-ray emission from the kiloparsec-scale jets of Centaurus A and M87
• The X-ray properties of young radio-loud AGN
• The $\gamma$-ray spectrum of the core of Centaurus A as observed with H.E.S.S. and Fermi-LAT
• Tracing jet--ISM interaction in young AGN: correlations between [OIII] 5007 and 5-GHz emission
• The Radio Properties of Composite LINER/HII Galaxies
• X-ray study of a sample of FR0 radio galaxies: unveiling the nature of the central engine
• Jet Emission in Young Radio Sources: a Fermi-LAT Gamma-ray View
• Deriving the contribution of blazars to the Fermi-LAT Extragalactic $\gamma$-ray background at $E>10$ GeV with efficiency corrections and photon statistics
• Parsec-scale radio structure of 14 Fanaroff-Riley type 0 radio galaxies
• Kiloparsec-Scale Jets in FR I Radio Galaxies and the Gamma-Ray Background
• Discovery of a FR0 radio galaxy emitting at $\gamma$-ray energies
• Extragalactic relativistic jets
• Magnetospheric Gamma-Ray Emission in Active Galactic Nuclei
• The new class of FR0 radio galaxies
• High-energy neutrinos from FR0 radio-galaxies?
• First X-ray observations of Low-Power Compact Steep Spectrum Sources
• The faint source population at 15.7 GHz - III. A high-frequency study of HERGs and LERGs
• Radio Galaxies with the Cherenkov Telescope Array
• A survey of Low Luminosity Compact sources
• GeV-TeV gamma-rays produced by electrons in the kpc scale jet as a result of comptonization of the inner jet emission