Discovery of a FR0 radio galaxy emitting at $\gamma$-ray energies

Abstract

We present supporting evidence for the first association of a Fermi source, 3FGLJ1330.0-3818, with the FR0 radio galaxy Tol1326-379. FR0s represent the majority of the local radio loud AGN population but their nature is still unclear. They share the same properties of FRIs from the point of view of the nuclear and host properties, but they show a large deficit of extended radio emission. Here we show that FR0s can emit photons at very high energies. Tol1326-379 has a GeV luminosity of $L_{>1\mathrm{GeV}}\sim 2\times 10^{42}$ erg s${}^{-1}$, typical of FRIs, but with a steeper $\gamma$-ray spectrum ($\Gamma =2.78\pm 0.14$). This could be related to the intrinsic jet properties but also to a different viewing angle.

7 pages, 5 figures , accepted for publication on MNRAS

References in corpus (17)

• The Host Galaxies and Classification of Active Galactic Nuclei
• The Co-Evolution of Galaxies and Supermassive Black Holes: Insights from Surveys of the Contemporary Universe
• The Third Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope
• CRATES: An All-Sky Survey of Flat-Spectrum Radio Sources
• Fast variability of TeV gamma-rays from the radio galaxy M 87
• Fermi Gamma-ray Imaging of a Radio Galaxy
• The Inner Jet of the Radio Galaxy M87
• A pilot study of the radio-emitting AGN population: the emerging new class of FR0 radio-galaxies
• The accretion mechanism in low-power radio galaxies
• Resolving the innermost parsec of Centaurus A at mid-infrared wavelengths
• The Event Horizon of M87
• On the spine-layer scenario for the very high-energy emission of NGC 1275
• The connection between the radio jet and the gamma-ray emission in the radio galaxy 3C 120
• Neutrinos from active black holes, sources of ultra high energy cosmic rays
• Models for the Spectral Energy Distributions and Variability of Blazars
• The new class of FR0 radio galaxies
• Particle Acceleration and gamma-ray emission due to magnetic reconnection around the core region of radio galaxies

Cited by in corpus (19)

• Science with e-ASTROGAM (A space mission for MeV-GeV gamma-ray astrophysics)
• Compact steep-spectrum and peaked-spectrum radio sources
• The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope -- Data Release 3
• High-resolution VLA observations of FR0 radio galaxies: properties and nature of compact radio sources
• X-ray study of a sample of FR0 radio galaxies: unveiling the nature of the central engine
• Gamma-ray emission in radio galaxies under the VLBI scope -- I. Parsec-scale kinematics and high-energy properties of $\gamma$-ray detected TANAMI radio galaxies
• High-energy neutrinos from FR0 radio-galaxies?
• The Extragalactic Gamma-Ray Background from Core Dominated Radio Galaxies
• Scrutinizing FR 0 Radio Galaxies as Ultra-High-Energy Cosmic Ray Source Candidates
• Compact jets dominate the continuum emission in low-luminosity active galactic nuclei
• Radio Galaxies with the Cherenkov Telescope Array
• Faint $\gamma$-ray sources at low-redshift: the radio galaxy IC 1531
• On the sub-parsec scale core composition of FR 0 radio galaxies
• Search for gamma-ray counterparts of newly discovered radio astrophysical sources
• Linking {\it Fermi} blazars and radio galaxies through accretion and jet radiation mechanisms
• Gamma-ray emission in radio galaxies, from MeV to TeV
• The High Energy View of FR0 Radio Galaxies
• The eMERLIN and EVN view of FR0 radio galaxies
• A New Gamma-ray Emitting Population of FR0 Radio Galaxies