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The high energy view of FR0 radio galaxies

The high energy view of FR0 radio galaxies
The high energy view of FR0 radio galaxies

A new class of low-power compact radio sources with limited jet structures, named FR 0, is emerging from recent radio-optical surveys. This abundant population of radio galaxies, five times more numerous than FR Is 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 γ-ray background and to be possible cosmic neutrino emitters. Here, we review the radio through X-ray properties of FR 0s to predict their high-energy emission (from MeV to TeV), in light of the near-future facilities operating in this band.

Active galactic nuclei, Emission: non-thermal, Gamma-rays, GeV γ-rays, Jets, Radio galaxies, TeV γ-rays
Baldi, Ranieri Diego
c416ed4c-5d1c-48ee-989c-3a8ab38cd124
Torresi, Eleonora
6547dec1-35e6-4ef6-afd5-4d92f6c9dc85
Migliori, Giulia
163c99a2-095a-4e18-8574-f8a5dcd74a70
Balmaverde, Barbara
686c717a-7f50-4c78-bc2b-95db393e1fd8
Baldi, Ranieri Diego
c416ed4c-5d1c-48ee-989c-3a8ab38cd124
Torresi, Eleonora
6547dec1-35e6-4ef6-afd5-4d92f6c9dc85
Migliori, Giulia
163c99a2-095a-4e18-8574-f8a5dcd74a70
Balmaverde, Barbara
686c717a-7f50-4c78-bc2b-95db393e1fd8

Baldi, Ranieri Diego, Torresi, Eleonora, Migliori, Giulia and Balmaverde, Barbara (2019) The high energy view of FR0 radio galaxies. Galaxies, 7 (3), [76]. (doi:10.3390/galaxies7030076).

Record type: Review

Abstract

A new class of low-power compact radio sources with limited jet structures, named FR 0, is emerging from recent radio-optical surveys. This abundant population of radio galaxies, five times more numerous than FR Is 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 γ-ray background and to be possible cosmic neutrino emitters. Here, we review the radio through X-ray properties of FR 0s to predict their high-energy emission (from MeV to TeV), in light of the near-future facilities operating in this band.

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Accepted/In Press date: 2 September 2019
Published date: 5 September 2019
Keywords: Active galactic nuclei, Emission: non-thermal, Gamma-rays, GeV γ-rays, Jets, Radio galaxies, TeV γ-rays

Identifiers

Local EPrints ID: 435106
URI: http://eprints.soton.ac.uk/id/eprint/435106
PURE UUID: 62330c41-ba95-4d4a-8ed5-2f854cbc65c2

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Date deposited: 23 Oct 2019 16:30
Last modified: 04 Nov 2019 17:30

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