DAOSPEC：高分辨率恒星光谱等效宽度自动测量程序
DAOSPEC: an automatic code for measuring equivalent widths in high-resolution stellar spectra
摘要：
DAOSPEC是一个Fortran代码，用于测量恒星光谱中吸收线的等效宽度，最大限度地减少了人工参与。它与标准的FITS格式文件一起工作，并且它被设计用于高分辨率（R>15000）和高信噪比（S/N>30）光谱，这些光谱已经在线性波长范围内进行了分组。首先，我们回顾了文献中通常采用的分析程序。接下来，我们将讨论DAOSPEC的基本原理，并指出与传统测量技术的相似之处和不同之处。然后，人工和真实光谱的实验进行了讨论，以说明DAOSPEC的能力和局限性，特别注意的连续放置的问题;径向速度;和强线和线拥挤的影响。最后，定量比较与其他代码和文献中的结果。
英文摘要：
DAOSPEC is a Fortran code for measuring equivalent widths of absorption lines in stellar spectra with minimal human involvement. It works with standard FITS format files and it is designed for use with high resolution (R>15000) and high signal-to-noise-ratio (S/N>30) spectra that have been binned on a linear wavelength scale. First, we review the analysis procedures that are usually employed in the literature. Next, we discuss the principles underlying DAOSPEC and point out similarities and differences with respect to conventional measurement techniques. Then experiments with artificial and real spectra are discussed to illustrate the capabilities and limitations of DAOSPEC, with special attention given to the issues of continuum placement; radial velocities; and the effects of strong lines and line crowding. Finally, quantitative comparisons with other codes and with results from the literature are also presented.
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。
