Bibcode
Villar-Martín, M.; Emonts, B.; Cabrera Lavers, A.; Tadhunter, C.; Mukherjee, D.; Humphrey, A.; Rodríguez Zaurín, J.; Ramos Almeida, C.; Pérez Torres, M.; Bessiere, P.
Bibliographical reference
Monthly Notices of the Royal Astronomical Society, Volume 472, Issue 4, p.4659-4678
Advertised on:
12
2017
Citations
24
Refereed citations
24
Description
We report the discovery of a radio-quiet type 2 quasar (SDSS
J165315.06+234943.0 nicknamed the `Beetle' at z = 0.103) with
unambiguous evidence for active galactic nucleus (AGN) radio-induced
feedback acting across a total extension of ˜46 kpc and up to
˜26 kpc from the AGN. To the best of our knowledge, this is the
first radio-quiet system where radio-induced feedback has been securely
identified at ≫several kpc from the AGN. The morphological,
ionization and kinematic properties of the extended ionized gas are
correlated with the radio structures. We find along the radio axis (a)
enhancement of the optical line emission at the location of the radio
hotspots (b) turbulent gas kinematics (FWHM ˜ 380-470 km
s-1) across the entire spatial range circumscribed by them
(c) ionization minima for the turbulent gas at the location of the hot
spots, (d) high temperature Te ≳ 1.9 ×
104 K at the NE hotspot. Turbulent gas is also found far from
the radio axis, ˜25 kpc in the perpendicular direction. We propose
a scenario in which the radio structures have perforated the
interstellar medium of the galaxy and escaped into the circumgalactic
medium. While advancing, they have interacted with in situ gas modifying
its properties. Our results show that jets of modest power can be the
dominant feedback mechanism acting across huge volumes in radio-quiet
systems, including highly accreting luminous AGNs, where radiative mode
feedback may be expected.
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