eddy: Extracting Protoplanetary Disk Dynamics with Python

eddy is a Python package which implements several methods for extracting kinematical information from astronomical observations of Doppler shifted molecular line emission in protoplanetary disks, the birthplace of planets.Such kinematic information is essential for constraining the physical structure of the accretion disk and searching for evidence of embedded planets (Teague, Bae, Bergin, Birnstiel, & Foreman-Mackey, 2018a; Teague, Bae, Birnstiel, & Bergin, 2018b).Basic functionality includes two types of analysis: either for full 2D rotation maps ("first moment maps"), or for a 1D annulus of spectra extracted from a particular radius in the disk.