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Storm in a "teacup": A radio-quiet quasar with 10 kpc radio-emitting bubbles and extreme gas kinematics

Lookup NU author(s): Dr Christopher HarrisonORCiD


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© 2015. The American Astronomical Society. All rights reserved. We present multi-frequency (1-8 GHz) Very Large Array data, combined with VIsible MultiObject Spectrograph integral field unit data and Hubble Space Telescope imaging, of a z = 0.085 radio-quiet type 2 quasar (with L 1.4 GHz 5 × 1023 W Hz-1 and L AGN 2 × 1045 erg s-1). Due to the morphology of its emission-line region, the target (J1430+1339) has been referred to as the "Teacup" active galactic nucleus (AGN) in the literature. We identify "bubbles" of radio emission that are extended 10-12 kpc to both the east and west of the nucleus. The edge of the brighter eastern bubble is co-spatial with an arc of luminous ionized gas. We also show that the "Teacup" AGN hosts a compact radio structure, located 0.8 kpc from the core position, at the base of the eastern bubble. This radio structure is co-spatial with an ionized outflow with an observed velocity of v = -740 km s-1. This is likely to correspond to a jet, or possibly a quasar wind, interacting with the interstellar medium at this position. The large-scale radio bubbles appear to be inflated by the central AGN, which indicates that the AGN can also interact with the gas on ≳ 10 kpc scales. Our study highlights that even when a quasar is formally "radio-quiet" the radio emission can be extremely effective for observing the effects of AGN feedback.

Publication metadata

Author(s): Harrison CM, Thomson AP, Alexander DM, Bauer FE, Edge AC, Hogan MT, Mullaney JR, Swinbank AM

Publication type: Article

Publication status: Published

Journal: Astrophysical Journal

Year: 2015

Volume: 800

Issue: 1

Online publication date: 06/02/2015

Acceptance date: 12/12/2014

ISSN (print): 0004-637X

ISSN (electronic): 1538-4357

Publisher: Institute of Physics Publishing


DOI: 10.1088/0004-637X/800/1/45


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