Effect of the age uncertainties on the age-[α/Fe] distribution (left column), age-metallicity distribution (middle column), and [α/Fe]-[Fe/H] distribution (right column) for APOGEE DR17 local dwarfs. The ages in this case are obtained with the observational input K absolute magnitude, MK0, and Gaia DR3 color BPRP0. The stars in these plots have been selected to have: age above 1.1 Gyr, [Fe/H] lower than −1 dex, (BP - RP)₀ lower than 0.95. We compare three different cuts: e_age < 0.3 Gyr (6 757 stars), e_age < 0.5 Gyr (12 035 stars), e_age < 0.7 Gyr (16 167 stars) with the total distribution to which no selection on age uncertainty is applied (22 233 stars, bottom row). The stars are color-coded for [Fe/H], [α/Fe], and age, respectively. The number of candidate YARs (with age below 8 Gyr and [α/Fe] above 0.15 dex) is written in orange in each age-[α/Fe] panel.