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Table 2.

Characteristics of the active sample.

RGB, active HB, active

M ≤ 1.5 M, M ≤ 1.5 M, M > 1.5 M, M > 1.5 M, M ≤ 1.5 M M > 1.5 M
νmax ≥ 100 μHz νmax < 100 μHz νmax ≥ 100 μHz νmax < 100 μHz
Gaulme et al. (2020) 2.8% (11) 0.25% (1) 20.5% (34) 2.0% (2) 3.7% (53) 9.1% (72)
with Prot
Ca II H&K 3.7% (10) 5.0% (14) 6.3% (7) 2.7% (2) 4.6% (46) 6.5% (33)
Mg I 4.0% (11) 4.3% (12) 4.5% (5) 1.4% (1) 17.3% (173) 19.2% (100)
Hα 4.6% (13) 2.7% (8) 10.5% (12) 5.3% (4) 12.4% (129) 17.3% (91)
Ca II IR 4.3% (12) 5.1% (15) 7.9% (9) 1.3% (1) 3.9% (41) 0.9% (5)

Notes. Same as Table 1, but showing the percentage of active stars; the number in parenthesis indicates the number of active stars. In the case of chromospheric indicators, stars are considered active if the corresponding activity indicator lies above the 2σ prediction interval around the fit in Fig. 1, except for the Hα indicator for which stars are considered active if SHα lies below the 2σ prediction interval around the fit.

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