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Table 3

Linear regression (Y = α + β FI) and Pearson correlation coefficients (R) obtained from the frequency-averaged fractional mode difference (Y) in three frequency bands and flare-activity index (FI) of the flaring ARs.

Mode ν-range α β ± σ R

Parameters (μHz) (× 10-2erg-1cm2)

1800–2799 –0.41 4.84 ± 1.79 0.35
δA/A 2800–3799 –0.87 10.21 ± 3.15 0.41
3800–4800 –0.82 9.66 ± 3.04 0.41

1800–2799 –0.04 0.69 ± 2.02 0.05
δb0/b0 2800–3799 –0.24 2.56 ± 1.53 0.23
3800–4800 –0.19 1.19 ± 1.67 0.10

1800–2799 –0.03 0.50 ± 0.81 0.09
δΓ/Γ 2800–3799 0.29 –2.91 ± 1.63 –0.24
3800–4800 0.29 –2.93 ± 1.46 –0.27

1800–2799 –0.42 5.15 ± 1.69 0.39
δE/E 2800–3799 –0.53 6.49 ± 3.35 0.26
3800–4800 –0.49 6.22 ± 3.16 0.27

Notes. The mode parameters are corrected for foreshortening, duty cycle, and magnetic-activity index.

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