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

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

PBC J2333.9-2343 is a peculiar active nucleus with two giant radio lobes and a weak blazarlike 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).

Original languageEnglish
Pages (from-to)4634-4640
Number of pages7
JournalMonthly Notices of the Royal Astronomical Society
Volume478
Issue number4
DOIs
Publication statusPublished - 21 Aug 2018

Keywords

  • Galaxies: active
  • Galaxies: individual: PBC J2333.9-2343
  • Galaxies: jets

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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