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Paper: Multi-Sightline Spectroscopy of Outflowing Winds in Quasar SDSS J1029+2623
Volume: 460, AGN Winds in Charleston
Page: 115
Authors: Misawa, T.; Inada, N.; Ohsuga, K.; Gandhi, P.; Konami, S.; Takahashi, R.; Kawaharada, M.
Abstract: Accretion disk outflows are the most important key ingredient for the evolution of quasars as well as for galaxy formation and evolution, but their origin still remains uncertain. Blue-shifted broad absorption features, observed in quasar spectra, are known to be a powerful tool to probe the outflows of quasars, but we have opportunities to trace only single sight-lines for each quasar so far. That is, we do not have any “eyes” to see the 3-D structure of the outflows. The recent discovery of the large-separation lensed quasar SDSS J1029+2623 (zem ∼ 2.197), with separation angle of 22″.5 (lensed by a massive cluster of galaxies) provides a chance to see the outflow of a quasar from multiple viewing-angles, through the C IV broad absorption feature in each lensed image. We carried out medium-resolution spectroscopy of the two brightest images of the quasar (images A and B) to see whether the absorption features are variable or not, and also high-resolution spectroscopy to extract line parameters to place strict constraints on the absorber's physical conditions. Our results support the scenario in which the two sightlines probe physically separate regions of the outflowing wind.
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