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Table 1.
Heliocentric radial velocities of the red giant and the cF-absorption lines with their 1σ errors, and the maximum IP observed.
| Date [UT] | HJD | Phase ( ⋆ ) | IPmax | RVcool | RVcF |
|---|---|---|---|---|---|
| yyyy-mm-dd | −2 450 000 | [eV] | [km s−1] | [km s−1] | |
| 2005-02-01 | 3402.8 | 0.272 | 55 | 37.98 ± 0.32 | – |
| 2005-05-16 | 3506.6 | 0.385 | 99 | 36.46 ± 0.37 | – |
| 2017-04-17 | 7861.3 | 0.129 | 114 | 36.24 ± 0.69 | – |
| 2017-05-10 | 7884.5 | 0.154 | 114 | 39.28 ± 1.00 | – |
| 2017-06-12 | 7917.4 | 0.190 | 114 | 40.01 ± 0.64 | – |
| 2017-07-06 | 7941.3 | 0.216 | 114 | 37.82 ± 0.67 | – |
| 2017-07-30 | 7965.3 | 0.242 | 114 | 39.55 ± 0.69 | – |
| 2018-02-05 | 8154.5 | 0.448 | 114 | 33.32 ± 0.76 | – |
| 2018-03-04 | 8182.4 | 0.479 | 114 | 30.21 ± 1.25 | – |
| 2019-02-15 | 8530.5 | 0.858 | 55 | 25.91 ± 0.68 | 55.6 ± 1.3 |
| 2019-03-30 | 8572.6 | 0.904 | 25 | 26.75 ± 0.49 | 56.8 ± 1.3 |
| 2019-05-01 | 8605.5 | 0.940 | 25 | 29.01 ± 0.33 | 49.4 ± 1.9 |
| 2019-06-08 | 8643.4 | 0.981 | 25 | 31.26 ± 0.44 | 30.7 ± 1.5 |
| 2020-01-28 | 8876.5 | 0.235 | 55 | 39.44 ± 0.49 | 11.2 ± 0.7 |
| 2020-05-10 | 8980.5 | 0.348 | 55 | 36.29 ± 0.50 | 15.2 ± 1.0 |
| 2020-07-01 | 9032.3 | 0.404 | 55 | 35.40 ± 0.43 | 16.1 ± 1.1 |
| 2021-02-04 | 9249.5 | 0.641 | 55 | 29.54 ± 0.64 | 47.8 ± 2.8 |
| 2021-03-26 | 9300.4 | 0.697 | 55 | 26.22 ± 0.43 | 55.5 ± 2.3 |
| 2021-05-02 | 9337.3 | 0.737 | 55 | 24.17 ± 0.37 | 50.3 ± 0.8 |
| 2021-07-25 | 9421.3 | 0.828 | 55 | 25.02 ± 0.47 | – |
Notes. ( ⋆ )Phase according to the ephemeris: HJDT0 = 2458661 + 918 × E (Table 3).
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