Bibcode
May, D.; Rodríguez-Ardila, A.; Prieto, M. A.; Fernández-Ontiveros, J. A.; Diaz, Y.; Mazzalay, X.
Referencia bibliográfica
Monthly Notices of the Royal Astronomical Society: Letters, Volume 481, Issue 1, p.L105-L109
Fecha de publicación:
11
2018
Número de citas
28
Número de citas referidas
23
Descripción
Low-luminosity Active Galactic Nuclei (LLAGNs) are characterized for
low-radiative efficiency, much less than one percent of their Eddington
limit. Nevertheless, their main energy release may be mechanical,
opposite to powerful AGN classes like Seyfert and Quasars. This work
reports on the jet-driven mechanical energy and the corresponding mass
outflow deposited by the jet in the central 170 parsecs of the nearby
LLAGN ESO 428-G14. The jet kinetic output is traced through the coronal
line [Si VI] λ19641 Å. It is shown that its radial
extension, up to hundreds of parsecs, requires a combination of
photoionization by the central source and shock excitation as its
origin. From the energetics of the ionized gas it is found that the mass
outflow rate of the coronal gas is in the range from 3-8 M⊙
yr-1, comparable to those estimated from H I gas at
kiloparsec scales in powerful radio galaxies.
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Almudena
Prieto Escudero