Table 1.
Measured values of Rossby mode parameters.
| MC | Löptien et al. (2018) | Liang et al. (2019) | ||||
|---|---|---|---|---|---|---|
| (s,t) |
 |
σ0/2π | σ0/2π | σ0/2π | Γ/2π |
 |
| nHz | nHz | nHz | nHz | nHz | cm s−1 | |
| (4, 4) | −181 | −192 ± 4 |
 |
−198 ± 5 | 28 ± 4 | 151 ± 68 |
| (6, 6) | −129 | −134 ± 2 | −129 ± 8 |
 |
5 ± 1 | 205 ± 70 |
| (8, 8) | −100 | −96 ± 3 | −90 ± 3 | −91 ± 3 | 11 ± 5 | 262 ± 69 |
| (10, 10) | −82.4 | −80 ± 3 | −75 ± 5 |
 |
21 ± 1 | 216 ± 89 |
| (12, 12) | −69.6 | −58 ± 4 | −59 ± 6 | −36 ± 8 | 12 ± 1 | 204 ± 47 |
| (14, 14) | −60.4 | −46 ± 5 |
 |
−35 ± 5 | 39 ± 8 | 107 ± 57 |
| (16, 16) | −53.2 | −14 ± 2 | – | – | 12 ± 1 | 109 ± 40 |
Notes. Analysis of first 8 years of SDO/HMI data. Fitted values of mode frequency, σ0, amplitude, 
, and full width at half maximum, Γ, to the observed B-coefficient spectra are listed in the corotating frame. MC stands for mode coupling here. The theoretical frequencies of modes in a corotating frame with a tracking frequency of 453 nHz are given in the second column in the table. Observed frequencies from two other studies, Löptien et al. (2018) and Liang et al. (2019), are listed in the fourth and fifth column in the table, respectively. We plot the fitted spectrum in Fig. 4.
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