English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Broad absorption line (BAL) features in quasar spectra reveal an unambiguoussignature of energetic outflows from central supermassive black holes, and thusBAL quasars are prime targets for investigating the potential process ofluminous quasar feedback on galaxies. We analyzed the rest-UV spectrum of an"overlapping trough" iron low-ionization broad absorption line quasar (FeLoBAL)SDSS J135246.37+423923.5 using the novel spectral synthesis code SimBAL(Leighly et al. 2018) and discovered an extraordinarily fast and energetic BALoutflow. Our analysis revealed outflow velocities reaching $\sim -38000\rm \,km\, s^{-1}$ with a velocity width of $\sim 10000\rm \, km\, s^{-1}$ which isthe largest FeLoBAL outflow velocity measured to date. The column density ofthe outflow gas is log$N_H\sim23.2\,[\rm cm^{-1}]$ with the log kineticluminosity $\log L_{KE}\sim48.1$ [erg $\rm s^{-1}$] which exceeds thebolometric luminosity of the quasar and is energetic enough to effectivelydrive quasar feedback. The energy estimate for the outflow is far greater thanthe estimates from any BAL object previously reported.  The object also shows "anomalous reddening" and a significant scatteredcomponent that we were able to model with SimBAL. We found the first definitivecase for radiation filtering in an additional zero-velocity absorptioncomponent that required an absorbed continuum to produce the particularabsorption lines observed (MgII, AlIII and AlII) without also producing thehigh ionization lines such as CIV.

Discovery of a Remarkably Powerful Broad Absorption Line Quasar Outflow in SDSS J135246.37+423923.5