pySYD: Automated measurements of global asteroseismic parameters

Asteroseismology is well-established in astronomy as the gold standard for determining precise and accurate fundamental stellar properties like masses, radii, and ages. Several tools have been developed for asteroseismic analyses but many of them are closed-source and therefore not accessible to the general astronomy community. Here we present $\texttt{pySYD}$, a Python package for detecting solar-like oscillations and measuring global asteroseismic parameters. $\texttt{pySYD}$ was adapted from the IDL-based $\texttt{SYD}$ pipeline, which was extensively used to measure asteroseismic parameters for $\textit{Kepler}$ stars. $\texttt{pySYD}$ was developed using the same well-tested methodology and comes with several new improvements to provide accessible and reproducible results. Well-documented, open-source asteroseismology software that has been benchmarked against closed-source tools are critical to ensure the reproducibility of legacy results from the $\textit{Kepler}$ mission. Moreover, $\texttt{pySYD}$ will also be a promising tool for the broader astronomy community to analyze current and forthcoming data from the NASA TESS mission.