Time-Variable Complex Metal Absorption Lines in the Quasar HS1603+3820

摘要

We present five spectra of the quasar HS1603+3820 (z_(em)=2.542) taken over intervals of 0.2-1.6 years (0.7-5.4 months in the quasar rest frame) with the High Dispersion Spectrograph on the Subaru telescope, for the purpose of studying its intrinsic narrow absorption lines (NALs). This quasar shows a rich complex of C IV NALs near the emission redshift (dN/dz ~ 12). We perform time variability analysis as well as covering factor analysis to separate intrinsic NALs, which are physically related to the quasar, from intervening NALs in 8 C IV systems.