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A Bayesian Method for the Extinction

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arxiv 1406.5055 v1 pith:Y4BAYL7L submitted 2014-06-19 astro-ph.IM astro-ph.GA

A Bayesian Method for the Extinction

classification astro-ph.IM astro-ph.GA
keywords methodbayesianextinctiongalacticaccuracyachieveapplyaround
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We propose a Bayesian method to measure the total Galactic extinction parameters, $R_V$ and $A_V$. Validation tests based on the simulated data indicate that the method can achieve the accuracy of around 0.01\,mag. We apply this method to the SDSS BHB stars in the northern Galactic cap and find that the derived extinctions are highly consistent with those from \cite{SFD98}. It suggests that the Bayesian method is promising for the extinction estimation, even the reddening values are close to the observational errors.

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