Today we realized or re-realized that the linear terms in our MySpace project (the project to find the coordinate transformation that maximizes the informative-ness of the velocity sub-structure in the Milky Way disk) are just the Oort constants, or a generalization thereof. But since they maximize the velocity structure, they don't necessarily mean, for us, what Oort expected them to mean. We also got the method working to first order. Or I should say that Adrian Price-Whelan (Flatiron) did. He made use of jax, the auto-differentiation package for Python. It's impressive.
No comments:
Post a Comment