Fig. 4

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Debris disc fractional luminosity vs. space velocity and age. Upper panel: debris disc fractional luminosity as a function of space velocity, |Urel|, with colours from yellow to dark blue indicating young to old stars, respectively. The line is the result of linear regression fitting. Lower panel: debris disc fractional luminosity as a function of stellar age, with colours from yellow to dark blue indicating increasing space velocity, |Urel|.
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