Star positions relative to gas for stars without Apogee RVs, i.e., the stars that are excluded from Fig. 7. We study these non-Apogee stars to determine whether the Apogee (Majewski et al. 2015; Da Rio et al. 2016) sample is systematically biased against stars lying within the dense spiny columns due to increased extinction. See Fig. 12. Ordinate is δ [deg].
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