Coordinated time variability of multi-phase ultra-fast outflows in J132216.25+052446.3

Abstract

We present a time variability analysis of broad absorption lines (BAL; spread over the velocity range of 5800-29000 km/s) seen in the spectrum of J132216.25+052446.3 (z(em)= 2.04806) at ten different epochs spanning over 19 years. The strongest absorption component (BAL-A; spread over 5800-9900 km/s) is made up of several narrow components having velocity separations close to C IV doublet splitting. The C IV, N V, and Si IV absorption from BAL-A show correlated optical depth variability without significant changes in the velocity structure. A very broad and shallow absorption (BAL-C; spread over the velocity range 15000-29000 km/s) emerged during our monitoring period coinciding with a dimming episode of J1322+0524. All the identified absorption lines show correlated variability with the equivalent widths increasing with decreasing flux. This together with the C IV emission-line variability is consistent with ionization being the main driver of the correlated variability. The observed UV-continuum variations are weaker than what is required by the photo-ionization models. This together with a scatter in the C iv equivalent width at a given continuum flux can be understood if variations of the C IV ionizing photons are much larger than that of the UV continuum, the variations in the ionizing photon and UV fluxes are not correlated and/or the covering factor of the flow varies continuously. We suggest BAL-A is produced by a stable clumpy outflow located beyond the broad emission line region and BAL-C is a newly formed wind component located near the accretion disk and both respond to changes in the ionizing continuum.

15 pages, 16 figures, Accepted for publication in MNRAS

References in corpus (6)

• The Zwicky Transient Facility: System Overview, Performance, and First Results
• The Zwicky Transient Facility: Surveys and Scheduler
• Probabilistic multi-catalogue positional cross-match
• Appearance vs Disappearance of broad absorption line troughs in quasars
• Correlated time variability of multi-component high velocity outflows in J162122.54+075808.4
• On Synthetic Absorption Line Profiles of Thermally Driven Winds from Active Galactic Nuclei

Cited by in corpus (4)

• Time variability of ultra-fast BAL outflows using SALT: C IV equivalent width analysis
• Can galactic magnetic fields diffuse into the voids?
• Transient LoBALs at high velocities: A Case of Extreme Broad Absorption Line Variability in J115636.82+085628.9
• Magnetic field spreading from stellar and galactic dynamos into the exterior