Library of Cooling Track Models

[sefffal]

To tie photometry or direct images to radial velocity or proper motion measurements, we need to connect the brightness of a planet to mass given the age of the system.

We currently support the Sonora Bobcat cooling tracks, but we should have a library of a few other models like BT-Settl.

The first steps are:

• register the tracks as a DataDep
• interpolate over them on a fine grid using e.g. simpleinterpolations.jl
• Write a function that goes from (age, photometry) -> mass or (age,mass) -> photometry (whichever is easier, or both) using Interpolations.jl so that autodiff continues to work.
• Document them.