131 citations · 337 across the 16 of their papers we have counts for
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Search for intrinsic NALs in BAL/mini-BAL quasar spectra
Daisuke Itoh, Toru Misawa, Takashi Horiuchi +1
Some fraction of narrow absorption lines are physically associated to the quasar/host-galaxy materials (i.e., intrinsic NALs) like those of BALs and mini-BALs. The relation between…
A Comparison of Properties of Quasars with and without Rapid Broad Absorption Line Variability
Takashi Horiuchi, Tomoki Morokuma, Toru Misawa +2
We investigate the correlation between rest-frame UV flux variability of broad absorption line (BAL) quasars and their variability in BAL equivalent widths (EWs) in a various times…
Optical Variability Properties of Mini-BAL and NAL Quasars
Takashi Horiuchi, Toru Misawa, Tomoki Morokuma +3
While narrow absorption lines (NALs) are relatively stable, broad absorption lines (BALs) and mini-BAL systems usually show violent time variability within a few years via a mechan…
Resolving the Clumpy Structure of the Outflow Winds in the Gravitationally Lensed Quasar SDSS J1029+2623
Toru Misawa, Naohisa Inada, Masamune Oguri +4
We study the geometry and the internal structure of the outflowing wind from the accretion disk of a quasar by observing multiple sightlines with the aid of strong gravitational le…