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Table 1

Information about the stars in this study.

Star Star Teff vesini Mass Radius Incl. Prot Age range Membership Age
name HD (K) (km s-1) (M) (R) (deg.) (d) (erg/s) min/max (Myr) (Myr)

EK Dra 129333 58451 16.81 1.0442 0.972 603 2.63 29.93 4.23/4.15 100125 Pleiades5 100
HN Peg 206860 59741 10.61 1.1032 1.042 756 4.66 29.12 4.44/4.42 200400 Hercules-Lyra7 250
π1 UMa 72905 58738 11.29 1.008 0.9610 60 4.911 29.10 4.40/4.33 200600 Ursa major5 300
χ1 Ori 39587 58821 9.81 1.0282 1.052 65 5.0810 28.99 4.43/4.42 300600 Ursa major12 300
BE Cet 1835 58371 7.01 1.0622 1.002 65 7.6510 29.13 4.44/4.43 400625 Hyades13 600
κ1 Cet 20630 57421 5.21 1.0342 0.952 60 9.211 28.79 4.47/4.42 300750 650

Notes. Most parameters are taken from previous studies while some are derived in this study. A detailed description of the stellar ages can be found in Sect. 3.1.

Reference. (1) Valenti & Fischer (2005); (2) Takeda et al. (2007); (3) Strassmeier & Rice (1998); (4) Güdel et al. (1998) (5) Montes et al. (2001a); (6) Boro Saikia et al. (2015); (7) Eisenbeiss et al. (2013); (8) Gonzalez et al. (2010); (9) Martínez-Arnáiz et al. (2010); (10) Güdel (2007); (11) Messina & Guinan (2003); (12) King et al. (2003); (13) Montes et al. (2001b).

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