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arXiv · 1805.07366

Variable broad lines and outflow in the weak blazar PBC J2333.9-2343

L. Hernández-García·G. Vietri·F. Panessa·E. Piconcelli·V. Chavushyan·E. F. Jiménez-Andrade·L. Bassani·A. Bazzano·S. Cazzoli·A. Malizia·N. Masetti·L. Monaco·M. Pović·I. Saviane·P. Ubertini
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Abstract

PBC J2333.9-2343 is a peculiar active nucleus with two giant radio lobes and a weak blazar-like nucleus at their center. In the present work we show new optical, UV, and X-ray data taken from the San Pedro M\'artir 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 H$\alpha$ component with a flux increase of 61$\pm$4 per cent between 2009 and 2016, following the X-ray flux increase of 62$\pm$6 per cent between 2010 and 2016. We also detected a broad H$\beta$ component in 2016, making the optical classification change from type 1.9 to type 1.8 in one year. We have also detected a broad component of the [OIII]$\lambda$5007 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 BLR and NLR.

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L. Hernández-García, G. Vietri, F. Panessa, E. Piconcelli, V. Chavushyan, E. F. Jiménez-Andrade, L. Bassani, A. Bazzano, S. Cazzoli, A. Malizia, N. Masetti, L. Monaco, M. Pović, I. Saviane, P. Ubertini. 2018-05-18. Variable broad lines and outflow in the weak blazar PBC J2333.9-2343. https://doi.org/10.1093/mnras%2Fsty1345

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