VLBA Multi-frequency Polarimetric imaging of Radio-loud Broad Absorption Line Quasars

Abstract

We conducted the first multi-frequency polarimetric imaging of four broad absorption line (BAL) quasars using Very Long Baseline Array at milli-arcsecond resolutions to investigate the inclination of the non-thermal jet and test the hypothesis that radio sources in BAL quasars are still young. Among these four sources, J0928+446, J1018+0530, and J1405+4056 show one-sided structures in parsec scales, and polarized emission detected in the core. These characteristics are consistent with those of blazars. We set constraints on viewing angles to $<$66 deg for these jets, in the framework of a Doppler beaming effect. J1159+0112 exhibits an unpolarized gigahertz peaked spectrum component and several discrete blobs with steep spectra on both sides of the central component across $\sim$1 kpc. These properties are consistent with those of young radio sources. We discuss the structures of jets and AGN wind.

Accepted for publication in ApJ. 20 pages, 9 figures, 5 tables in emulateapj format

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Cited by in corpus (11)

• The Relativistic Jet-Accretion Flow-Wind Connection in Mrk\,231
• A Blazar-Like Radio Flare in Mrk 231
• Search for intrinsic NALs in BAL/mini-BAL quasar spectra
• A VLBI survey of compact Broad Absorption Lines (BAL) quasars with BALnicity Index BI=0
• A VLBI survey of compact broad absorption line quasars with balnicity index BI>0
• Estimating the Jet Power of Mrk\,231 During the 2017-2018 Flare
• Misalignment of the Jet and the Normal to the Dusty Torus in the Broad Absorption Line QSO FIRST\,J155633.8+351758
• Restarting radio activity and dust emission in radio-loud broad absorption line quasars
• The Japanese Vision for the Black Hole Explorer Mission
• A Giant Metrewave Radio Telescope Survey of Radio-loud Broad Absorption Line Quasars
• Broadband nuclear emission in two radio-loud BAL quasars