标题： 一种用于确定光谱双星轨道参数的 Python 代码 显示英文标题

标题： A Python Code to Determine Orbital Parameters of Spectroscopic Binaries

摘要： 我们提供了开源的Python代码BinaryStarSolver，用于求解光谱双星系统的轨道要素。 给定径向速度测量的时间序列，确定六个轨道参数：长期平均或系统性径向速度，速度振幅，近日点角，偏心率，近日点历元以及由$\{{\gamma, K, \omega, e, T_0, P}\}$表示的轨道周期。 返回给用户的是半长轴的投影长度$a_{1}\sin(i)$和质量函数$f(M)$。 光谱轨道和质量的确定是天体物理学另一个重要领域的例子，过去是专业天文学家的领域，现在业余爱好者也可以做出重要贡献。 此代码从GitHub获取，旨在支持该工作，应能广泛用于业余和专业天文社区。 显示英文摘要

摘要： We present the open source Python code BinaryStarSolver that solves for the orbital elements of a spectroscopic binary system. Given a time-series of radial velocity measurements, six orbital parameters are determined: the long-term mean, or systemic, radial velocity, the velocity amplitude, the argument of periastron, the eccentricity, the epoch of periastron, and the orbital period referred to by $\{{\gamma, K, \omega, e, T_0, P}\}$ respectively. Also returned to the user is the projected length of the semi-major axis, $a_{1}\sin(i)$, and the mass function, $f(M)$. The determination of spectroscopic orbits and masses is an example of another important area of astrophysics, once the domain of professional astronomers, to which amateurs can now make significant contributions. This code, available from GitHub, is provided in support of that work, and should be of general use to the amateur and professional astronomical community.