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Table 4
Chromospheric line fluxes and R′ index.
| JD | F Hα | log |
F Hβ | log |
F Hϵ | log |
F Ca iiH | log |
F Ca iiK | log |
| (+2 450 000) | ||||||||||
|
|
||||||||||
| BD−21 1074A | ||||||||||
| 6302.148 | 1.89 ± 0.35 | − 3.76 | 1.10 ± 0.33 | − 3.99 | 0.24 ± 0.06 | − 4.66 | 0.68 ± 0.14 | − 4.20 | 0.77 ± 0.18 | − 4.15 |
| 6305.142 | 2.03 ± 0.38 | − 3.73 | 1.15 ± 0.35 | − 3.98 | 0.25 ± 0.06 | − 4.63 | 0.70 ± 0.15 | − 4.19 | 0.78 ± 0.17 | − 4.14 |
|
|
||||||||||
| BD−21 1074B | ||||||||||
| 6302.135 | 3.13 ± 0.67 | − 3.48 | 1.64 ± 0.71 | − 3.76 | 0.29 ± 0.09 | − 4.52 | 0.69 ± 0.19 | − 4.14 | 0.73 ± 0.20 | − 4.12 |
| 6303.130 | 3.13 ± 0.66 | − 3.48 | 1.68 ± 0.72 | − 3.75 | 0.32 ± 0.09 | − 4.47 | 0.71 ± 0.19 | − 4.13 | 0.81 ± 0.23 | − 4.07 |
| 6305.129 | 3.48 ± 0.72 | − 3.44 | 1.82 ± 0.78 | − 3.72 | 0.32 ± 0.10 | − 4.47 | 0.70 ± 0.19 | − 4.13 | 0.81 ± 0.22 | − 4.07 |
Notes. The errors include both the EW error as quoted in Table 3 and the continuum-flux error estimated from the Teff and log g errors evaluated with ROTFIT and reported in Table 4. Fluxes are expressed in 106 erg cm-2 s-1. Errors on R′ index are on the order of 
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