Spectroscopy along Multiple, Lensed Sightlines through Outflowing Winds in the Quasar SDSS J1029+2623

Abstract

We study the origin of absorption features on the blue side of the C IV broad emission line of the large-separation lensed quasar SDSS J1029+2623 at z_em ~ 2.197. The quasar images, produced by a foreground cluster of galaxies, have a maximum separation angle of ~ 22".5. The large angular separation suggests that the sight-lines to the quasar central source can go through different regions of outflowing winds from the accretion disk of the quasar, providing a unique opportunity to study the structure of outflows from the accretion disk, a key ingredient for the evolution of quasars as well as for galaxy formation and evolution. Based on medium- and high-resolution spectroscopy of the two brightest images conducted at the Subaru telescope, we find that each image has different intrinsic levels of absorptions, which can be attributed either to variability of absorption features over the time delay between the lensed images, ~ 774 days, or to the fine structure of quasar outflows probed by the multiple sight-lines toward the quasar. While both these scenarios are consistent with the current data, we argue that they can be distinguished with additional spectroscopic monitoring observations.

17 pages, including 7 figures; accepted for publication in the Astronomical Journal

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Cited by in corpus (10)

• VDES J2325-5229 a z=2.7 gravitationally lensed quasar discovered using morphology independent supervised machine learning
• Magnified Views of the Ultrafast Outflow of the z = 1.51 AGN HS 0810+2554
• Discovery of Four Doubly Imaged Quasar Lenses from the Sloan Digital Sky Survey
• Resolving the Clumpy Structure of the Outflow Winds in the Gravitationally Lensed Quasar SDSS J1029+2623
• COOL-LAMPS III: Discovery of a 25".9 Separation Quasar Lensed by a Merging Galaxy Cluster
• Narrow Absorption Lines Complex. II. Probing the Line-locking Signatures within the Trough-like Broad Absorption Line
• Multi-Sightline Observation of Narrow Absorption Lines in Lensed Quasar SDSS J1029+2623
• Physical Conditions of Five O VI Absorption Systems Towards PG $1522+101$
• Spectroscopic Observations of the Outflowing Wind in the Lensed Quasar SDSS J1001+5027
• Pair Lines of Sight Observations of Multiphase Gas Bearing O VI in a Galaxy Environment