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A Bayesian Method for the Extinction

Published online by Cambridge University Press:  01 July 2015

Hai-Jun Tian
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 China Three Gorges University, Yichang, 443002. Email: hjtian@lamost.org
Chao Liu
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
Jing-Yao Hu
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
Yang Xu
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
Xue-Lei Chen
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
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Abstract

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We propose a Bayesian method to measure the total Galactic extinction parameters, RV and AV. 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 Schlegel et al. (1998). It suggests that the Bayesian method is promising for the extinction estimation, even the reddening values are close to the observational errors.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2015 

References

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Tian, H. J., Neyrinck, M. C., Budavári, T., & Szalay, A. S., 2011, ApJ, 728, 34TCrossRefGoogle Scholar
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