This is the documentation for kelp, a photometric phase curve package written in Python. The source code is available on GitHub.

Interactive demo

The \(h_{m\ell}\) basis is a mathematical shorthand for describing physically-motivated temperature maps for exoplanets. Three parameters which can be tuned to fit most phase curves include the the dimensionless drag frequency \(\omega\), the power in the \(m=\ell=1\) spherical harmonic mode \(C_{11}\), and the arbitrary rotational offset of the coordinate system \(\Delta\phi\). Tweak these parameters below to see how they affect the corresponding maps and phase curves: