Discovery of a FR0 radio galaxy emitting at γ-ray energies

Journal
Date Issued
2016
Author(s)
•
•
DOI
Abstract
We present supporting evidence for the first association of a Fermi source, 3FGLJ1330.0-3818, Acero et al. (2015) with the Fanaroff-Riley type 0 (FR 0) radio galaxy Tol1326-379. FR 0s represent the majority of the local population of radio-loud active galactic nuclei but their nature is still unclear. They share the same nuclear and host properties as FR Is, but they show a large deficit of extended radio emission. Here we show that FR 0s can emit photons at very high energies. Tol1326-379 has a GeV luminosity of L>1 GeV ∼ 2 × 1042 erg s-1, typical of FR Is, but with a steeper γ-ray spectrum (Γ = 2.78 ± 0.14). This could be related to the intrinsic jet properties but also to a different viewing angle.
Volume
457
Issue
1
Start page
2
Uri
Url
Issn Identifier
0035-8711
Ads BibCode
2016MNRAS.457....2G
Rights
open.access
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