Table 4.
Observed and theoretical m = 0 periods of the asteroseismological model for GD 358 [M⋆ = 0.584 M⊙, Teff = 24 967 K, log(L⋆/L⊙) = − 1.215] corresponding to solution (1) in Fig. 8.
 |
ℓO | Πk | ℓ | k | δΠk |
 |
Unstable |
|---|---|---|---|---|---|---|---|
| (s) | (s) | (s) | (10−13 s/s) | ||||
| 423.246 | 1 | 420.975 | 1 | 8 | 2.272 | 0.725 | Yes |
| 463.481 | 1 | 462.511 | 1 | 9 | 0.970 | 1.354 | Yes |
| 464.238 | ? | 462.511 | 1 | 9 | 1.727 | 1.354 | Yes |
| 494.026 | ? | 499.054 | 1 | 10 | −5.028 | 1.146 | Yes |
| 538.300 | 1 | 538.126 | 1 | 11 | 0.174 | 1.394 | Yes |
| 574.220 | 1 | 572.947 | 1 | 12 | 1.273 | 1.041 | Yes |
| 618.272 | 1 | 617.647 | 1 | 13 | 0.625 | 1.319 | Yes |
| 658.690 | 1 | 657.517 | 1 | 14 | 1.173 | 1.735 | Yes |
| 699.820 | 1 | 696.097 | 1 | 15 | 3.723 | 1.650 | Yes |
| 730.280 | 1 | 732.797 | 1 | 16 | −2.517 | 1.506 | Yes |
| 775.745 | 1 | 770.251 | 1 | 17 | 5.494 | 1.621 | Yes |
| 811.076 | 1 | 812.662 | 1 | 18 | −1.586 | 2.014 | Yes |
| 854.593 | 1 | 853.775 | 1 | 19 | 0.818 | 2.026 | Yes |
| 901.490 | ? | 894.617 | 2 | 36 | 6.873 | 2.176 | Yes |
| 923.556 | ? | 926.073 | 1 | 21 | −2.517 | 1.900 | Yes |
| 963.226 | ? | 965.149 | 2 | 39 | −1.923 | 2.704 | Yes |
| 1014.350 | 1 | 1010.499 | 1 | 23 | 3.851 | 2.470 | Yes |
| 1062.320 | ? | 1063.670 | 2 | 43 | −1.350 | 3.004 | Yes |
| 1087.538 | 1 | 1082.719 | 1 | 25 | 4.819 | 2.420 | Yes |
Notes. We note that 
represents the period differences, ℓ the harmonic degree, and k the radial order. The last column gives information about the pulsational stability and instability nature of the modes.
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