Variable broad lines and outflow in the weak blazar PBC J2333.9-2343
Date Issued
2018
Author(s)
Hernández-García, L.
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Chavushyan, V.
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Jiménez-Andrade, E. F.
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Cazzoli, S.
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Monaco, L.
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Pović, M.
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Saviane, I.
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Ubertini, P.
Abstract
PBC J2333.9-2343 is a peculiar active nucleus with two giant radio lobes and a weak blazar-like nucleus at their centre. In this work we show new optical, ultraviolet (UV), and X-ray data taken from the San Pedro Mártir telescope, the New Technology Telescope, NTT/EFOSC2, and the Swift/XRT satellite. The source is highly variable at all frequencies, in particular the strongest variations are found in the broad Hα component with a flux increase of 61±4 per cent between 2009 and 2016, following the X-ray flux increase of 62±6 per cent between 2010 and 2016. We also detected a broad Hβ component in 2016, making the optical classification change from type 1.9 to type 1.8 in 1 yr. We have also detected a broad component of the [OIII]λ5007 line, which is blue-shifted and of high velocity, suggesting an origin from a highly disturbed medium, possibly an outflow. The line flux variability and broad widths are indicative of a jet that is, at least in part, responsible for the ionization of the broad line region (BLR) and narrow line region (NLR).
Volume
478
Issue
4
Start page
4634
Issn Identifier
0035-8711
Ads BibCode
2018MNRAS.478.4634H
Rights
open.access
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