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We present photometric and spectroscopic measurements of 53 QSO-galaxy pairsfrom the Sloan Digital Sky Survey, where nebular emission lines from a 0<z<0.84foreground galaxy are detected in the fiber spectra of a background QSO,bringing the overall sample to 103 QSO-galaxy pairs detected in the SDSS. Wehere study the nature of these systems. Detected foreground galaxies appear atimpact parameters between 0.37 kpc and 12.68 kpc. The presence of oxygen andBalmer emission lines allows us to determine the emission line metallicitiesfor our sample, which are on average super-solar in value. Star formation ratesfor our sample are in the range 0.01-12 M_sol yr^-1. We utilize photometricredshift fitting techniques to estimate the M_stellar values of our galaxies(log M_stellar = 7.34 - 11.54), and extrapolate this relationship to thosegalaxies with no imaging detections. Where available, we measure the absorptionfeatures present in the QSO spectrum due to the foreground galaxy and therelationships between their rest equivalent widths. We report ananti-correlation between impact parameter and E(B-V)_(g-i), as well as acorrelation between galaxy color (u-r) and E(B-V)_(g-i). We find that oursample is one of late-type, star forming galaxies comparable to field galaxiesin a similar redshift range, providing important clues to better understandabsorption systems. These galaxies represent a sample of typical galaxies inthe local Universe for which abundances, extinction, morphology, and absorptionproperties may be measured using background QSOs with great potential forfollow-up observations.

Galactic nebular lines in the fiber spectra of background QSOs: Reaching a hundred QSO-galaxy pairs with spectroscopic and photometric measurements