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Home All issues Volume 497 / No 1 (April I 2009) A&A, 497 1 (2009) 311-323 Full HTML
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Table 8:

Summary of systematic and statistical uncertainties in the Sirius B and HZ 43A spectra.
$\lambda$ a b c d e f g h i j k
50 0.000 0.000 0.000 0.005 0.027 0.007 0.072 0.000 0.000 0.005 0.192
60 0.001 0.000 0.001 0.002 0.014 0.007 0.011 0.002 0.000 0.005 0.122
80 0.003 0.001 0.001 0.001 0.005 0.007 0.004 0.002 0.000 0.005 0.020
100 0.005 0.001 0.001 0.000 0.003 0.007 0.002 0.004 0.000 0.005 0.018
120 0.007 0.002 0.001 0.000 0.005 0.007 0.002 0.005 0.001 0.005 0.012
140 0.010 0.004 0.002 0.000 0.006 0.007 0.002 0.005 0.002 0.005 0.010
160 0.011 0.006 0.002 0.000 0.008 0.007 0.003 0.006 0.006 0.005 0.012
170 0.012 0.007 0.002 0.000 0.010 0.007 0.051 0.008 0.010 0.005 0.031
type c c c c c u c c u c u
$\Delta\alpha$ 0.010 0.006 0.001 0.003 0.022 0.006 0.008 0.005 0.007 0.000 0.027
$\Delta A$ 0.006 0.003 0.001 0.001 0.004 0.002 0.004 0.004 0.002 0.005 0.006
Interstellar absorption:
a Uncertainty in the absorption cross sections. b Uncertainty in the ionisation correction. c Neglect of metals in the opacity.
Atmosphere modelling:
d Neglect of Compton scattering. e Uncertainties in atmosphere models. f Interpolation errors.
Spectral extraction:
g Background uncertainty. h Background contamination by source cross-dispersion distribution. i Higher spectral order subtraction. j Off-axis vignetting Sirius B. k Statistical uncertainty spectra.

Source LaTeX | All tables | In the text

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