skyscapes.physical_model.base

Abstract physical-model interface for a planet’s radiative output.

Subclasses own whatever spectral-physics parameters describe “this kind of planet” (Lambertian, grid-interpolated, radiative-transfer, future thermal emission). The only invariant is a single hook that maps (phase_angle, star-planet distance, wavelength, planet radius) onto a contrast (flux ratio relative to the host star).

The planet radius is supplied as a method argument rather than a class field – Rp_Rearth is a property of the planet, not the physical model. Planet.contrast forwards self.Rp_Rearth to the physical model at call time.

Classes

AbstractPhysicalModel

Spectral-physics layer for a planet.

Module Contents

class skyscapes.physical_model.base.AbstractPhysicalModel

Bases: equinox.Module

Spectral-physics layer for a planet.

Concrete subclasses own per-planet physical-model parameters (albedo, grid contrast cube, ExoJax composition, etc.). The host planet’s radius is supplied at call time via contrast(..., Rp_Rearth=...).

abstractmethod contrast(phase_angle_rad, dist_AU, wavelength_nm, Rp_Rearth)

Return planet-to-star contrast.

Args:

phase_angle_rad: Star-planet-observer phase angle beta,

shape (K, T) (matching AbstractOrbit.propagate).

dist_AU: Star-planet distance, shape (K, T). wavelength_nm: Wavelength, scalar or shape (W,). Rp_Rearth: Planet radius [Earth radii], shape (K,),

supplied by the host Planet.

Returns:

Flux-ratio contrast, shape (K, T).

Parameters:

• phase_angle_rad (jaxtyping.Array)

• dist_AU (jaxtyping.Array)

• wavelength_nm (jaxtyping.Array)

• Rp_Rearth (jaxtyping.Array)

Return type:

jaxtyping.Array