Astronomers from the National Astronomical Observatories of Chinese Academy of Sciences(NAOC) present an empirical stellar spectra library created with spectra from the LAMOST Data Release 5 (DR5). This library represents a uniform data set and covers a wide span of parameter space. This is the first empirical library that offers the most complete empirical spectra of K-type stars.

临床针对妊娠期高血压产妇大多选择对其实施剖宫产术。但术后容易出现产后出血现象，危害到产妇的健康和生命安全。常规治疗中，大多对其实施局部按摩或者缩宫素治疗，但效果有限。近年来，卡贝缩宫素是一种人工合成的药物，开始在临床得到日渐广泛的应用，并在预防产后出血等方面获得一定的效果[1]。本院尝试对产妇实施卡贝缩宫素治疗，经观察效果确切，报道如下。

With the large number of red stars observed by LAMOST, Drs. DU Bing and LUO Aliet al. generated denser K type templates to fill in what is missing in current empirical spectral libraries, particularly the late K-type.

The template spectra in the library have a resolution of R～1800, with well-calibrated fluxes and rest-framed wavelengths. By performing an internal cross-validation and external comparisons, they verified that the template spectra were labeled with accurate stellar parameters. All of the spectra are available online in the FITS formats.

统筹推进引资、引企、引智协同发展。将一地基于招商引资的产业发展和该地高等学校基于人才引进的教育发展有机衔接。重点推进广西科技大学和北部湾大学的跨越式赶超发展：广西科技大学重点引进汽车产业、新能源汽车的研究团队；北部湾大学重点引进和打造海洋相关产业的研究团队。以企业在3～5年面临的科技攻关难题作为高校教师和博士培养的研究内容方向，以解决企业的实际技术问题为导向进行高等院校博士人才培养改革的主要内容与根本方向。

Empirical stellar spectral libraries are crucial for many areas of astronomical research, including, but not limited to, spectral typing, modeling the spectral energy distributions and stellar populations of galaxies, and determining stellar properties. Stellar template libraries are also an important teaching resource, from examples of stellar spectra for introductory classes to detailed radiative transfer at the graduate level.

A Reviewers of this work highly appraised this paper: “The authors present a set of spectra templates that cover an impressive span of parameter space and which will certainly be used to match spectral observations, calibrate atmospheric models and demonstrate the differences among different stars. These data are important to the field.” … “I was finally able to download the templates and looked at a bunch of them and they are really wonderful.”

This work has been published in the Astrophysical Journal Supplement Series.