Multiple MgII Absorption Systems in the Lines of Sight to Quadruply
  Lensed Quasar H1413+1143
  We find multiple Mg II absorption systems at redshift z=1.66, 2.069, and
2.097 in the spatially resolved spectra of the quadruply gravitationally lensed
quasar H1413+1143 utilizing the Kyoto tridimensional spectrograph II (Kyoto
3DII) spectrograph on board the Subaru telescope. Here we present the first
measurement of differences in Mg II absorption strength of the multiple
intervening absorbers, which include ones identified as damped Lyman alpha
(DLA) absorption systems. Our detection of the significant Mg II absorptions in
the spatially resolved spectra reveals the inhomogeneous chemical enrichment on
scales of about 12 kpc within the separation of the four sightlines. For the
DLA system at z=1.66, the rest equivalent widths of the Mg II absorption lines
between the four spatially resolved lines of sight change by factors of up to
about 6, which trace the variations in the H I absorption strength. This
suggests that inhomogeneous cold absorbers that give rise to the strong H I/Mg
II absorptions dwell on a scale of about 6-12 kpc between the four lines of
sight. We also investigate the degree of variation in the equivalent width of
the absorption lines between the lines of sight. We find that the systems
giving rise to strong absorptions in the spectra of the quadruply lensed
quasars tend to have a high degree of variation in absorption strength between
the lines of sight toward the lensed quasars.
