Histogram of distances of RR Lyrae (filled) and red clump stars (steps) as function of Galactic latitude (ℓ). The distributions of the red clump stars include also the underlying RGB, but since those do not affect the position of the red clump the distributions are suitable for our comparison purposes. The total number of red clump stars in the same areas overwhelms the number of RR Lyrae, thus the histogram showing their distribution in distance was normalized for better visualization. The vertical line represents the RR Lyrae mean distance of each region.
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