ATTENZIONE!!! IL SISTEMA E' UTILIZZABILE ESCLUSIVAMENTE IN MODALITA' "CONSULTAZIONE". CAUSA PROBLEMI TECNICI, SI PREGA DI NON EFFETTUARE L'AUTENTICAZIONE, FINO A NUOVA COMUNICAZIONE. GRAZIE
 

The nature of compact radio sources: the case of FR 0 radio galaxies

Journal
Date Issued
2023
Author(s)
DOI
Abstract
Radio-loud compact radio sources (CRSs) are characterised by morphological compactness of the jet structure centred on the active nucleus of the galaxy. Most of the local elliptical galaxies are found to host a CRS with nuclear luminosities lower than those of typical quasars, ≲1042ergs-1 . Recently, low-luminosity CRSs with a LINER-like optical spectrum have been named Fanaroff–Riley (FR) type 0 to highlight their lack of substantially extended radio emission at kpc scales, in contrast with the other Fanaroff–Riley classes, full-fledged FR Is and FR II radio galaxies. FR 0s are the most abundant class of radio galaxies in the local Universe, and characterised by a higher core dominance, poorer Mpc-scale environment and smaller (sub-kpc scale, if resolved) jets than FR Is. However, FR 0s share similar host and nuclear properties with FR Is. A different accretion–ejection paradigm from that in place in FR Is is invoked to account for the parsec-scale FR 0 jets. This review revises the state-of-the-art knowledge about FR 0s, their nature, and which open issues the next generation of radio telescopes can solve in this context.
Volume
31
Issue
1
Uri
Url
Issn Identifier
0935-4956
Rights
open.access
File(s)
Loading...
Thumbnail Image
Name

s00159-023-00148-3.pdf

Description
Pdf editoriale
Size

4.45 MB

Format

Adobe PDF

Checksum (MD5)

72e315cc34c29e5fec386b680bab27e9

Loading...
Thumbnail Image
Name

FR0review_final1.pdf

Size

7.28 MB

Format

Adobe PDF

Checksum (MD5)

df5d8d35093477f62b59ee8306f49544