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Table A.2.
V509 Cas spectra used for temperature calibration based on the ratio of Ca Iλ6439 and Fe IIλ6446 lines.
| Date | Ca I/Fe II | Teff |
|---|---|---|
| 30.09.2022 (a) | 0.611 | 7907 |
| 03.09.2022 (a) | 0.682 | 7815 |
| 10.09.2022 (a) | 0.714 | 7916 |
| 15.08.2015 (a) | 0.714 | 7954 |
| 27.05.2002 (e) | 0.741 | 7885 |
| 05.08.2015 (a) | 0.779 | 7786 |
| 05.05.2022 (a) | 0.871 | 7826 |
| 07.10.2022 (a) | 0.875 | 7901 |
| 02.10.2001 (c) | 0.877 | 7706 |
| 22.07.2005 (d) | 0.906 | 7761 |
| 20.08.2009 (a) | 0.952 | 7849 |
| 14.11.2021 (a) | 0.984 | 7809 |
| 15.08.2021 (a) | 1.040 | 7786 |
| 09.07.2000 (c) | 1.050 | 7852 |
| 15.10.2021 (a) | 1.050 | 7663 |
| 18.06.2022 (a) | 1.080 | 7598 |
| 29.12.2021 (a) | 1.150 | 7582 |
| 13.06.2011 (f) | 1.160 | 7683 |
| 05.10.1996 (b) | 1.180 | 7683 |
| 27.08.2022 (a) | 1.190 | 7740 |
| 02.05.1996 (g) | 1.200 | 7497 |
| 17.04.1995 (c) | 1.250 | 7562 |
| 14.02.2022 (a) | 1.260 | 7524 |
| 08.09.2021 (a) | 1.370 | 7574 |
| 22.06.2022 (a) | 1.450 | 7589 |
| 03.07.1996 (g) | 1.650 | 7192 |
References. (a) NOT FIES; (b) Elodie; (c) WHT UES; (d) NOT SOFIN (A. Lobel); (e) TNG (G. Israelian); (f) PolarBase; (g) SAO Lynx echelle spectrograph (V. Klochkova)
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