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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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