Table 3: SIDAM analysis: optimized centroid positions of the Fe II lines in the main subcomponent and  $\Delta \alpha /\alpha $ calculated with Eqs. (4) or (10).
Exp. $\lambda_{\rm obs}$, Å $\lambda_{\rm obs}$, Å $\lambda_{\rm obs}$, Å $\lambda_{\rm obs}$, Å $(\Delta\alpha/\alpha)$ pair,
No. $\lambda1608$ $\lambda2382$ $\lambda2586$ $\lambda2600$ (in units of 10-5) $\lambda_1/\lambda_2$
(1) (2) (3) (4) (5) (6) (7)
11/12 4566.24408 6764.43913 7343.27915 7381.65008 1.199 1608/2382
          -2.103 1608/2586
          0.098 1608/2600
19/20 4566.23755 6764.44738 7343.26356 7381.64359 -1.047 1608/2382
          -1.525 1608/2586
          -0.393 1608/2600
21/22 4566.24661 6764.43913 7343.25994 7381.63961 1.668 1608/2382
          0.539 1608/2586
          1.860 1608/2600
23/24 4566.25102 6764.44933 7343.27203 7381.65019 1.209 1608/2382
          -0.028 1608/2586
          1.442 1608/2600
sample mean $\langle \Delta\alpha/\alpha \rangle$: 0.24  
error of the mean $\sigma/\sqrt{n}$: 0.38  


Source LaTeX | All tables | In the text

Article Contents
1 Introduction
2 Construction of the Fe II sample
3 Velocity shifts between individual exposures
4 The single ion differential $\alpha $ measurement
5 Analysis and the $\Delta \alpha /\alpha $ results
6 The fundamental noise limitation in the $\Delta \alpha /\alpha $ measurement
7 Discussion and outlook
8 Conclusions
References
List of tables
List of figures