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arXiv · 2110.04547

The Data Processing of the LAMOST Medium-Resolution Spectral Survey of Galactic Nebulae (LAMOST MRS-N Pipeline)

Chao-Jian Wu·Hong Wu·Wei Zhang·Yao Li·Juan-Juan Ren·Jian-Jun Chen·Chih-Hao Hsia·Yu-Zhong Wu·Hui Zhu·Bin Li·Yong-Hui Hou
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Abstract

The Large sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) medium-resolution spectral survey of Galactic Nebulae (MRS-N) has conducted for three years since Sep. 2018 and observed more than 190 thousands nebular spectra and 20 thousands stellar spectra. However, there is not yet a data processing pipeline for nebular data. To significantly improve the accuracy of nebulae classification and their physical parameters, we developed the MRS-N Pipeline. This article presented in detail each data processing step of the MRS-N Pipeline, such as removing cosmic rays, merging single exposure, fitting sky light emission lines, subtracting skylight, wavelength recalibration, measuring nebular parameters, creating catalogs and packing spectra. Finally, a description of the data products, including nebular spectra files and parameter catalogs, is provided.

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Chao-Jian Wu, Hong Wu, Wei Zhang, Yao Li, Juan-Juan Ren, Jian-Jun Chen, Chih-Hao Hsia, Yu-Zhong Wu, Hui Zhu, Bin Li, Yong-Hui Hou. 2021-10-09. The Data Processing of the LAMOST Medium-Resolution Spectral Survey of Galactic Nebulae (LAMOST MRS-N Pipeline). https://doi.org/10.1088/1674-4527/ac7387

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