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SparsePak: A Formatted Fiber Field Unit for The WIYN Telescope Bench Spectrograph. II. On‐Sky Performance
We present a performance analysis of SparsePak and the WIYN Bench Spectrograph for precision studies of stellar and ionized gas kinematics of external galaxies. We focus on spectrograph configurations with echelle and low-order gratings yielding spectral resolutions of ~10000 between 500-900nm. These configurations are of general relevance to the spectrograph …