Table 3
Illustrative sample calculations of magnetic-field strength without and with fringe correction and with different selections of spectral lines and weights (line depths) used for the construction of the LSD Stokes V profile.
| Spectrum | Fringe | B l | σ(Bl) | N LSD | N l | σ(Nl) | ||
| correction | G | G | % | G | G | |||
|
|
||||||||
| With all available lines with theoretical depths: | ||||||||
| 2003 #12 | no | 130 | 21 | 0.014 | −13 | 19 | ||
| 2004 #1 | no | 77 | 25 | 0.017 | 1 | 22 | ||
| 2004 #2 | no | −110 | 34 | 0.022 | −9 | 21 | ||
| 2003 #12 | yes | 95 | 19 | 0.013 | −13 | 19 | ||
| 2004 #1 | yes | 95 | 24 | 0.016 | 1 | 22 | ||
| 2004 #2 | yes | −107 | 27 | 0.018 | −9 | 21 | ||
|
|
||||||||
| With measured line depths and without all strong blends: | ||||||||
| 2003 #12 | no | 145 | 19 | 0.018 | −22 | 16 | ||
| 2004 #1 | no | 83 | 22 | 0.022 | −7 | 19 | ||
| 2004 #2 | no | −83 | 29 | 0.029 | 6 | 18 | ||
| 2003 #12 | yes | 71 | 17 | 0.017 | −22 | 16 | ||
| 2004 #1 | yes | 100 | 21 | 0.021 | −8 | 19 | ||
| 2004 #2 | yes | −84 | 23 | 0.023 | 6 | 18 | ||
Notes.Integration limits of vlimit = 54 km s-1 have been used. Symbols have the same meaning as in Table 2, from which the examples in the last three lines in the table below have been taken.
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