Magellan LDSS3 emission confirmation of galaxies hosting metal-rich
  Lyman-alpha absorption systems
  Using the Low Dispersion Survey Spectrograph 3 at the Magellan II Clay
Telescope, we target {candidate absorption host galaxies} detected in deep
optical imaging {(reaching limiting apparent magnitudes of 23.0-26.5 in $g, r,
i,$ and $z$ filters) in the fields of three QSOs, each of which shows the
presence of high metallicity, high $N_{\rm HI}$ absorption systems in their
spectra (Q0826-2230: $z_{abs}$=0.9110, Q1323-0021: $z_{abs}=0.7160$,
Q1436-0051: $z_{abs}=0.7377, 0.9281$). We confirm three host galaxies {at
redshifts 0.7387, 0.7401, and 0.9286} for two of the Lyman-$\alpha$ absorption
systems (one with two galaxies interacting). For these systems, we are able to
determine the star formation rates (SFRs); impact parameters (from previous
imaging detections); the velocity shift between the absorption and emission
redshifts; and, for one system, also the emission metallicity.} Based on
previous photometry, we find these galaxies have L$>$L$^{\ast}$. The [O II]
SFRs for these galaxies are in the range $11-25$ M$_{\odot}$ yr$^{-1}$
{(uncorrected for dust)}, while the impact parameters lie in the range $35-54$
kpc. {Despite the fact that we have confirmed galaxies at 50 kpc from the QSO,
no gradient in metallicity is indicated between the absorption metallicity
along the QSO line of sight and the emission line metallicity in the galaxies.}
We confirm the anti-correlation between impact parameter and $N_{\rm HI}$ from
the literature. We also report the emission redshift of five other galaxies:
three at $z_{em}>z_{QSO}$, and two (L$<$L$^{\ast}$) at $z_{em}<z_{QSO}$ not
corresponding to any known absorption systems.
