arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.05240astro-ph.GAastro-ph.SR
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LAMOST银河系星云中分辨率光谱巡天(LAMOST MRS-N):科学目标和巡天计划概述

LAMOST Medium-Resolution Spectral Survey of Galactic Nebula (LAMOST MRS-N): An overview of Scientific goals and Survey plan

Chao-Jian Wu, Hong Wu, Wei Zhang, Juan-Juan Ren, Jian-Jun Chen, Chih-Hao Hsia, Yu-Zhong Wu, Hui Zhu, Bin Li, Yong-Hui Hou, Jun-Lin Wang, Shuo-Ran Yu, LAMOST MRS Collaboration

摘要:

自2018年9月起,LAMOST开始了中分辨率(R $\sim 7500$)光谱调查(MRS)。提出了银河系星云的光谱巡天方案,包括\hii \区、HH天体、超新星遗迹、行星状星云和具有MRS的特殊恒星(LAMOST MRS-N)。LAMOST MRS-N在$40^\circ < l < 215^\circ$和$-5^\circ < b < 5^\circ$内覆盖了大约1700平方度的北银河平面。在这次为期5年的巡天中,我们计划观测约50万个星云光谱。根据试运行观测结果,星云光谱可以提供精确的径向速度,其不确定度小于1 km s $^{-1}$。这些高精度的光谱数据对我们理解恒星的形成和演化具有重要意义。

英文摘要:

Since Sep. 2018, LAMOST started the medium-resolution (R $\sim 7500$) spectral survey (MRS). We proposed the spectral survey of Galactic nebulae, including \hii\ regions, HH objects, supernova remnants, planetary nebulae and the special stars with MRS (LAMOST MRS-N). LAMOST MRS-N covers about 1700 square degrees of the northern Galactic plane within $40^\circ < l < 215^\circ$ and $-5^\circ < b < 5^\circ$. In this 5-year survey, we plan to observe about 500 thousand nebulae spectra. According to the commissioning observations, the nebulae spectra can provide precise radial velocity with uncertainty less than 1 km s$^{-1}$. These high-precision spectral data are of great significance to our understanding of star formation and evolution.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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