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Fig. 2.— The net probability distribution of $a_{\ast }$ ($R_{in}$). The abcissa is scaled logarithmically in $R_{in}$, a metric which reflects our measurement scale. The corresponding quantity of chief physical interest, namely $a_{\ast }$, is shown on the lower axis. Our final distribution (solid line) incorporates measurement error and systematic error, most notably uncertainties in the $\alpha$-viscosity and the absolute flux calibration. The pair of dash-dotted lines indicate the 90% confidence interval. The dotted line shows our result for $\alpha =0.03$ ignoring the effects of systematic error (where the probability distribution has been rescaled for comparison).

Source: Steiner et al. 2014 ┃ The Low-Spin Black… ⚬𓂃

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