We present a three-dimensional modeling of the Milky Way dust distribution by fitting the value-added star catalog of LAMOST spectral survey. The global dust distribution can be described by an exponential disk with scale-length of 3,192 pc and scale height of 103 pc. In this modeling, the Sun is located above the dust disk with a vertical distance of 23 pc. Besides the global smooth structure, two substructures around the solar position are also identified. The one located at 150∘<l<200∘ and −5∘<b<−30∘ is consistent with the Gould Belt model of \citet{Gontcharov2009}, and the other one located at 140∘<l<165∘ and 0∘<b<15∘ is associated with the Camelopardalis molecular clouds.
@article{arxiv.1803.10540,
title = {Three-dimensional structure of the milky way dust: modeling of LAMOST data},
author = {Linlin Li and Shiyin Shen and Jinliang Hou and Haibo Yuan and Maosheng Xiang and Bingqiu Chen and Yang Huang and Xiaowei Liu},
journal= {arXiv preprint arXiv:1803.10540},
year = {2018}
}