Table 1.
Extracted frequencies of HD 170580 with amplitude above five times the local noise level.
| # | f (d−1) | A (ppm) | S/N | Notes |
|---|---|---|---|---|
| f1 | 3.3373(4) | 148(17) | 23.8 | quintuplet |
| f2 | 3.2371(5) | 103(16) | 11.4 | triplet |
| f3 | 1.7957(6) | 82(15) | 11.4 | triplet, in HARPS spectra |
| f4 | 3.3509(6) | 87(15) | 11.4 | quintuplet |
| f5 | 1.8622(6) | 72(14) | 11.4 | triplet |
| f6 | 3.3233(7) | 71(15) | 11.4 | quintuplet |
| f7 | 1.8364(7) | 61(13) | 11.9 | triplet |
| f8 | 1.7221(8) | 53(13) | 12.2 | triplet |
| f9 | 3.3066(9) | 54(14) | 11.6 | quintuplet |
| f10 | 1.9691(9) | 49(14) | 12.4 | |
| f11 | 1.5426(7) | 48(10) | 11.2 | f1 − f3 |
| f12 | 3.2237(10) | 46(14) | 11.9 | triplet |
| f13 | 1.5559(6) | 42(8) | 8.5 | f4 − f3 |
| f14 | 3.4432(11) | 39(14) | 12.2 | |
| f15 | 1.6950(7) | 36(8) | 8.6 | triplet |
| f16 | 1.8095(6) | 46(8) | 8.8 | |
| f17 | 1.8008(6) | 41(8) | 8.9 | unresolved |
| f18 | 3.2505(12) | 37(13) | 12.5 | triplet, f13 + f15 |
| f19 | 1.7083(8) | 31(8) | 9.1 | triplet |
| f20 | 1.5151(8) | 33(8) | 9.3 | f2 − f8 |
| f21 | 1.4822(7) | 28(6) | 9.0 | f6 − f7 |
| f22 | 3.3895(9) | 29(8) | 9.1 | f7 + f13? |
| f23 | 3.6568(9) | 29(8) | 9.1 | triplet, f3 + f5 |
| f24 | 1.8495(10) | 24(8) | 9.4 | triplet |
| f25 | 1.5285(8) | 24(6) | 7.4 | f1 − f16 |
| f26 | 1.7849(9) | 22(6) | 7.2 | triplet |
| f27 | 3.7348(11) | 23(8) | 9.3 | |
| f28 | 3.2902(13) | 20(8) | 9.3 | f16 + f21? |
| f29 | 3.5936(13) | 20(8) | 9.3 | f3 + f17 |
| f30 | 3.8053(12) | 22(8) | 9.3 | f7 + f10 |
| f31 | 3.6715(13) | 20(8) | 9.3 | triplet, f5 + f16? |
| f32 | 2.2010(9) | 21(6) | 7.5 | |
| f33 | 3.4567(12) | 21(8) | 9.3 | f10 + f21? |
| f34 | 3.4040(12) | 21(8) | 9.3 | f15 + f19?, f5 + f11? |
| f35 | 1.5694(6) | 18(3) | 6.8 | f4 − f19 |
| f36 | 1.8880(8) | 23(6) | 7.5 | f27 − f24? |
| f37 | 1.7510(10) | 19(6) | 7.6 | f14 − f15? f2 − f21? |
| f38 | 8.4401(28) | 19(16) | 11.3 | ≃f3 + 2f6 |
| f39 | 3.3641(11) | 18(6) | 7.4 | quintuplet |
| f40 | 1.7727(7) | 16(3) | 6.8 | triplet |
| f41 | 2.0069(6) | 17(3) | 6.9 | satellite |
| f42 | 3.1905(13) | 14(6) | 7.7 | f19 + f21? |
| f43 | 3.6433(12) | 15(6) | 7.7 | triplet, f3 + f24? |
| fS1 | 2.6700 | in HERMES spectra | ||
| alias of f31 | ||||
Notes. The formal errors from a NLLS fit were corrected for the correlated nature of the data following Schwarzenberg-Czerny (2003) and are indicated in brackets at the level of the last digits. The significance (in terms of S/N) was computed over an interval of 2 d−1 centred on the pre-whitened frequency. The frequencies in italic are omitted in the interpretation; a discussion of the notes can be found in the text. The last row lists the dominant frequency found in the HERMES spectroscopy, while f3 was recovered in the HARPS spectra.
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