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Fig. 1
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Our vbroad sample for sources with given extinction coefficients ϖ > 0, σϖ/ϖ < 10%, (GBP − GRP)0 ∈ [1,1.6], and MG,0 ∈ [4,8], colour-coded by vbroad values. The 215 sources with vbroad well above 50 km/s are rounded down to 50 km/s for the colour coding; of these, 204 are located on the upper strip.
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