【摘 要】
：
Since Sep.2018,LAMOST has started the medium-resolution (R ～ 7500) spectral survey(MRS).We proposed the spectral survey of Galactic nebulae,including H Ⅱ region
【机 构】
：
CAS Key Laboratory of Optical Astronomy,National Astronomical Observatories,Chinese Academy of Scien
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Since Sep.2018,LAMOST has started the medium-resolution (R ～ 7500) spectral survey(MRS).We proposed the spectral survey of Galactic nebulae,including H Ⅱ 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° ＜ l ＜ 215° and-5° ＜ b ＜ 5°.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.
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